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000
FXUS66 KSEW 030932
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
230 AM PDT FRI JUL 3 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY
AND UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...SLIGHTLY STRONGER LOW LEVEL ONSHORE FLOW WILL RESULT
IN A FEW DEGREES COOLING TODAY BUT HIGHS WILL CONTINUE TO BE WELL
ABOVE NORMAL AND A HEAT ADVISORY IS IN EFFECT FROM SEATTLE SOUTH.
THERE SHOULD BE SOME LOW CLOUDS AT THE COAST AND PARITALLY INLAND TO
ABOUT SHELTON THIS MORNING WITH THE STRONGER ONSHORE FLOW. OTHERWISE
IT WILL BE ANOTHER SUNNY DAY.

SATURDAY SHOULD BE PRETTY SIMILAR TO TODAY. UPPER HEIGHTS WILL FALL
SLIGHTLY WHILE LOW LEVEL ONSHORE FLOW WILL WEAKEN SLIGHTLY. CLOUDS
AND TEMPERATURES SHOULD TURN OUT TO BE ABOUT THE SAME.

LOW LEVEL OFFSHORE FLOW WILL DEVELOP SUNDAY WITH A THERMAL TROUGH
ALONG THE COAST. THIS SHOULD RESULT IN A VERY WARM DAY...EVEN
FOR THE COAST. HEAT ADVISORIES WILL PROBABLY NEED TO EXTENDED
THROUGH SATURDAY AND THEN EVENTUALLY SUNDAY. SCHNEIDER

.LONG TERM...LOW LEVEL ONSHORE FLOW WILL RETURN NEXT WEEK BUT
COOLING WILL BE GRADUAL AND HIGHS WILL REMAIN WELL ABOVE NORMAL FOR
MUCH OF THE WEEK. LATEST MODELS ACTUALLY SHOW TEMPERATURES BUMPING
UP AGAIN WEDNESDAY BEFORE COOLING A LITTLE AGAIN ON THURSDAY. DRY
WEATHER IS EXPECTED TO CONTINUE. SCHNEIDER

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
TONIGHT WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON. LIGHT
ONSHORE LOW LEVEL FLOW WILL TREND WEAKLY OFFSHORE TONIGHT. THE AIR
MASS WILL REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED MARINE
MOISTURE NEAR THE COAST.

MARINE STRATUS HAS MOVED ONTO THE COAST...AND IT SHOULD MOVE UP
THE LOWER CHEHALIS VALLEY TO AROUND SHELTON BY DAY BREAK. THE
STRATUS WILL LIKELY BURN BACK TO THE COAST BY LATE MORNING...THEN
PUSH INTO THE LOWER CHEHALIS VALLEY AGAIN TONIGHT. OTHERWISE SKIES
WILL BE GENERALLY CLEAR.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY TODAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH THIS
EVENING...WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER
EASTERN WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL
CONTINUE OVER THE OUTER COASTAL WATERS...WITH MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND
EASTERN ENTRANCE STRAIT THIS EVENING.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST LATE
TONIGHT AND HIGH PRESSURE WILL MOVE INTO BRITISH COLUMBIA.
THIS WILL RESULT IN WEAK OFFSHORE FLOW DURING THE WEEKEND...AND
WINDS SHOULD GENERALLY BE 20 KT OR LESS. WEAK ONSHORE FLOW
WILL PROBABLY RESUME MONDAY AND TUESDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/




000
FXUS66 KSEW 030932
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
230 AM PDT FRI JUL 3 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY
AND UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...SLIGHTLY STRONGER LOW LEVEL ONSHORE FLOW WILL RESULT
IN A FEW DEGREES COOLING TODAY BUT HIGHS WILL CONTINUE TO BE WELL
ABOVE NORMAL AND A HEAT ADVISORY IS IN EFFECT FROM SEATTLE SOUTH.
THERE SHOULD BE SOME LOW CLOUDS AT THE COAST AND PARITALLY INLAND TO
ABOUT SHELTON THIS MORNING WITH THE STRONGER ONSHORE FLOW. OTHERWISE
IT WILL BE ANOTHER SUNNY DAY.

SATURDAY SHOULD BE PRETTY SIMILAR TO TODAY. UPPER HEIGHTS WILL FALL
SLIGHTLY WHILE LOW LEVEL ONSHORE FLOW WILL WEAKEN SLIGHTLY. CLOUDS
AND TEMPERATURES SHOULD TURN OUT TO BE ABOUT THE SAME.

LOW LEVEL OFFSHORE FLOW WILL DEVELOP SUNDAY WITH A THERMAL TROUGH
ALONG THE COAST. THIS SHOULD RESULT IN A VERY WARM DAY...EVEN
FOR THE COAST. HEAT ADVISORIES WILL PROBABLY NEED TO EXTENDED
THROUGH SATURDAY AND THEN EVENTUALLY SUNDAY. SCHNEIDER

.LONG TERM...LOW LEVEL ONSHORE FLOW WILL RETURN NEXT WEEK BUT
COOLING WILL BE GRADUAL AND HIGHS WILL REMAIN WELL ABOVE NORMAL FOR
MUCH OF THE WEEK. LATEST MODELS ACTUALLY SHOW TEMPERATURES BUMPING
UP AGAIN WEDNESDAY BEFORE COOLING A LITTLE AGAIN ON THURSDAY. DRY
WEATHER IS EXPECTED TO CONTINUE. SCHNEIDER

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
TONIGHT WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON. LIGHT
ONSHORE LOW LEVEL FLOW WILL TREND WEAKLY OFFSHORE TONIGHT. THE AIR
MASS WILL REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED MARINE
MOISTURE NEAR THE COAST.

MARINE STRATUS HAS MOVED ONTO THE COAST...AND IT SHOULD MOVE UP
THE LOWER CHEHALIS VALLEY TO AROUND SHELTON BY DAY BREAK. THE
STRATUS WILL LIKELY BURN BACK TO THE COAST BY LATE MORNING...THEN
PUSH INTO THE LOWER CHEHALIS VALLEY AGAIN TONIGHT. OTHERWISE SKIES
WILL BE GENERALLY CLEAR.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY TODAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH THIS
EVENING...WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER
EASTERN WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL
CONTINUE OVER THE OUTER COASTAL WATERS...WITH MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND
EASTERN ENTRANCE STRAIT THIS EVENING.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST LATE
TONIGHT AND HIGH PRESSURE WILL MOVE INTO BRITISH COLUMBIA.
THIS WILL RESULT IN WEAK OFFSHORE FLOW DURING THE WEEKEND...AND
WINDS SHOULD GENERALLY BE 20 KT OR LESS. WEAK ONSHORE FLOW
WILL PROBABLY RESUME MONDAY AND TUESDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/





000
FXUS66 KSEW 030430 AAA
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

...CORRECTION IN THE 4TH PARAGRAPH...

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER STATEMENT
ELSEWHERE AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW
MAY PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/




000
FXUS66 KSEW 030430 AAA
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

...CORRECTION IN THE 4TH PARAGRAPH...

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER STATEMENT
ELSEWHERE AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW
MAY PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/





000
FXUS66 KSEW 030326
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER SYSTEM ELSEWHERE
AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW MAY
PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/




000
FXUS66 KSEW 030326
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER SYSTEM ELSEWHERE
AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW MAY
PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/




000
FXUS66 KSEW 030326
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER SYSTEM ELSEWHERE
AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW MAY
PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/





000
FXUS66 KSEW 030326
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT THU JUL 2 2015

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO AT LEAST EARLY NEXT WEEK FOR CONTINUED SUNNY AND
UNSEASONABLY WARM WEATHER.

&&

.SHORT TERM...STRONG UPPER LEVEL RIDGE REMAINS OVER THE WESTERN U.S.
AND THE PACIFIC NW. SATELLITE IMAGERY SHOWS SOME CIRRUS CLOUDS
MOVING ONSHORE IN THE LIGHT WESTERLY FLOW ALOFT...THE ONLY BLEMISH
IS THE CLEAR SKIES FOR TONIGHT INTO FRIDAY.

THE UPPER LOW THAT WAS IN THE GULF OF ALASKA ON TUE HAS BEEN KICKED
OUT BY ANOTHER UPPER LOW MOVING EAST ALONG THE ALEUTIANS. THE FORMER
GULF OF ALASKA LOW IS RIDING OVER THE RIDGE WAY UP IN THE SOUTHERN
YUKON.

IT IS THE ALEUTIAN LOW THAT PUMPS UP UPPER RIDGE NEAR 140W AND
RESULTS IN MORE NW FLOW ALOFT AND SAGGING 500 MB HEIGHTS AS THE
FORMER GULF OF ALASKA LOW WORKS IT WAY INLAND ACROSS NORTHERN
CANADA. THE 00Z PROGS IN HAND THUS FAR CONTINUE THIS TREND THAT
RESULTS IN CHIPPING A FEW DEGREES OFF THE RECORD OR NEAR RECORD WARM
TEMPERATURES TODAY...FOR FRIDAYS HIGHS. THIS TREND CONTINUES INTO
SAT AS HEIGHTS SLIDE A BIT MORE THEN.

NO CHANGE IN THE HEAT ADVISORY FOR THE I-5 CORRIDOR FROM CENTRAL
PUGET SOUND SOUTHWARD AND THE WARM SPECIAL WEATHER SYSTEM ELSEWHERE
AT THIS POINT. A SUBTLE INCREASE IN LOW LEVEL ONSHORE FLOW MAY
PERMIT SOME MARINE CLOUDINESS TO REACH THE COASTLINE SATURDAY
MORNING....PERHAPS IN A FEW SPOTS FRIDAY MORNING.

IN THE WAKE OF THE NOW CANADIAN LOW HEADING FURTHER INLAND OVER THE
HOLIDAY WEEKEND...SURFACE HIGH PRESSURE BUILDS IN B.C. SETTING UP
LOW LEVEL OFFSHORE FLOW BY SUNDAY MORNING. THE E-NE WINDS...NORMALLY
COLD IN THE WINTER SEASON...WILL SERVE UP WARMER TEMPERATURES ON
SUNDAY WITH SOME SPOTS REACHING THEIR WARMEST OF THE YEAR THUS FAR -
WELL INTO THE 90S.

AND AN INTERESTING CLIMATE STAT...SEATAC AIRPORT AVERAGES 3 DAYS OF
90 DEGREES OR BETTER PER YEAR. TODAYS HIGH OF 93 WAS THE THIRD DAY
OF 90 PLUS THIS YEAR...AND IT IS ONLY JULY 2ND. SOCIAL MEDIA IS
EATING THAT STAT UP. STAY COOL - BUEHNER

.LONG TERM...FROM THE PREVIOUS DISCUSSION...A SOMEWHAT BROAD WEAK
UPPER LEVEL TROUGH WITH NW FLOW ALOFT WILL BE OVER THE PACNW MONDAY
THROUGH THURSDAY. MOSTLY SUNNY WEATHER WILL CONTINUE BUT THE AIR
MASS WILL BE A LITTLE COOLER WITH 500 MB HEIGHTS DOWN TO 5820 TO
5840 METERS. ONSHORE FLOW WILL REMAIN GENERALLY WESTERLY AND WEAK
FOR LIMITED STRATUS. MAX TEMPS ON MONDAY WILL BE IN THE 80S TO LOWER
90S...A STEP DOWN FROM SUNDAYS HOT READINGS. SLIGHTLY MORE AIR MASS
COOLING SHOULD DROP THE WARMEST SPOTS INTO THE 80S TUESDAY THROUGH
THURSDAY. THE GFS HAS SOME PRECIP BRUSHING THE FAR N CASCADES
TUESDAY AND WEDNESDAY CAUSED BY WEAK SHORTWAVE TROUGHS MOVING ACROSS
SOUTHERN B.C.  ECMWF SHOWS ABOUT THE SAME ON TUESDAY...BUT THERE IS
STILL ENOUGH UNCERTAINTY TO HOLD OFF ON SHOWERS FOR A LITTLE LONGER.
KAM

&&

.AVIATION...A FLAT UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH
FRIDAY...WITH WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON AND LIGHT
ONSHORE FLOW AT LOW LEVELS. THE AIR MASS WILL REMAIN DRY EXCEPT FOR
SHALLOW SURFACE-BASED MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH FRIDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 4-10 KT...BECOMING NW MIDDAY FRIDAY.   MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE RESULT WILL
BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS. WEAK ONSHORE
FLOW SHOULD RESUME MONDAY.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML  - TEMPORARILY OUT
OF SERVICE DURING A SOFTWARE UPDATE PERIOD.

WWW.WEATHER.GOV/SEATTLE/





000
FXUS66 KSEW 022215
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
315 PM PDT THU JUL 2 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR SUNNY AND HOT WEATHER.

&&

.SHORT TERM...THE STRONG UPPER LEVEL RIDGE OVER THE PACNW THIS
AFTERNOON WILL WEAKEN SLIGHTLY FRIDAY AND SATURDAY AS A LARGE UPPER
LEVEL LOW MOVES ACROSS WESTERN CANADA...BRUSHING W WA IN THE
PROCESS. THE AIR MASS OVER W WA IS HOT WITH RECORD OR NEAR RECORD
HIGH TEMPERATURES EXPECTED THIS AFTERNOON IN THE CENTRAL PUGET SOUND
METRO AREA...WHERE HIGHS WILL REACH THE LOWER TO MID 90S.

500 MB HEIGHTS WILL FALL A LITTLE FRIDAY AND SATURDAY DUE TO THE
CANADIAN LOW BRUSHING THE AREA. THIS SHOULD PROVIDE A LITTLE COOLING
SO THAT MAX TEMPS LOWER INTO THE 80S TO LOWER 90S FRIDAY AND THEN
MAINLY THE 80S ON SATURDAY.

WITH MAX TEMPERATURES STILL TOUCHING THE LOWER 90S FRIDAY...THE HEAT
ADVISORY FOR THE PUGET SOUND METRO CORRIDOR...INCLUDING SEATTLE
BELLEVUE TACOMA AND THE EAST PUGET SOUND LOWLANDS HAS BEEN EXTENDED
THROUGH 9 PM FRIDAY EVENING. A SPECIAL WEATHER STATEMENT WILL BE
ISSUED TO SUPPLEMENT THE HEAT ADVISORY...DISCUSSING THE HEAT THROUGH
THE HOLIDAY WEEKEND.

PRESSURE GRADIENTS ARE CURRENTLY FLAT OR WEAKLY OFFSHORE THIS
AFTERNOON...BUT WEAK ONSHORE FLOW IS STILL EXPECTED TO DEVELOP
TONIGHT. AT 2 PM THERE WAS A BANK OF STRATUS ABOUT 130 MILES
OFFSHORE WHICH THE ARW MODEL BRINGS TO THE COAST SOMETIME THIS
EVENING...THEN PARTWAY INLAND LATE TONIGHT. THE MODEL IS PROBABLY A
LITTLE FAST...BUT EVEN SO...STRATUS IS NOT EXPECTED TO REACH THE
PUGET SOUND REGION. LOW TEMPERATURES OVERNIGHT IN THE ADVISORY AREA
ARE STILL EXPECTED TO ONLY COOL TO THE UPPER 50S AND 60S. OUTSIDE
THE ADVISORY AREA THERE WILL BE BETTER COOLING AND MORE RELIEF FROM
THE HEAT WITH LOWS MAINLY IN THE 50S.

AS THE CANADIAN LOW DEPARTS TO THE E OVER CENTRAL CANADA ON
SATURDAY...A SURFACE RIDGE WILL MOVE S OVER SOUTHERN B.C. SATURDAY
AFTERNOON AND EVENING IN THE WAKE OF THE LOW. THIS SURFACE RIDGE
WILL INCREASE THE NORTHERLY FLOW OVER W WA SATURDAY EVENING...THEN
TURN THE LOW LEVEL FLOW TO E-NE OFFSHORE SATURDAY NIGHT. THE
OFFSHORE FLOW WILL PUSH SUNDAYS MAX TEMPS INTO THE 80S TO MID 90S
OVER MUCH OF W WA INCLUDING THE COAST...WITH POTENTIAL RECORD
TEMPERATURES FOR THE DATE IN SEVERAL SPOTS. THE OFFSHORE FLOW WILL
WEAKEN SUNDAY NIGHT. KAM

.LONG TERM...A SOMEWHAT BROAD WEAK UPPER LEVEL TROUGH WITH NW FLOW
ALOFT WILL BE OVER THE PACNW MONDAY THROUGH THURSDAY. MOSTLY SUNNY
WEATHER WILL CONTINUE BUT THE AIR MASS WILL BE A LITTLE COOLER WITH
500 MB HEIGHTS DOWN TO 5820 TO 5840 METERS. ONSHORE FLOW WILL REMAIN
GENERALLY WESTERLY AND WEAK FOR LIMITED STRATUS. MAX TEMPS ON MONDAY
WILL BE IN THE 80S TO LOWER 90S...A STEP DOWN FROM SUNDAYS HOT
READINGS. SLIGHTLY MORE AIR MASS COOLING SHOULD DROP THE WARMEST
SPOTS INTO THE 80S TUESDAY THROUGH THURSDAY. THE GFS HAS SOME PRECIP
BRUSHING THE FAR N CASCADES TUESDAY AND WEDNESDAY CAUSED BY WEAK
SHORTWAVE TROUGHS MOVING ACROSS SOUTHERN B.C.  ECMWF SHOWS ABOUT THE
SAME ON TUESDAY...BUT THERE IS STILL ENOUGH UNCERTAINTY TO HOLD OFF
ON SHOWERS FOR A LITTLE LONGER. KAM

&&

.AVIATION...HIGH PRESSURE ALOFT THROUGH FRIDAY. WESTERLY FLOW ALOFT
WILL REMAIN LIGHT WITH LIGHT ONSHORE FLOW AT LOW LEVELS. THE AIR
MASS WILL BE STABLE AND REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH TONIGHT...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 6-10 KT...BECOMING NW MIDDAY TODAY...THEN N-NE AGAIN
AFTER SUNSET. DTM

&&

.MARINE...NORTHWESTERLY GRADIENTS WILL REMAIN STRONG OVER THE OUTER
COASTAL WATERS THROUGH SATURDAY. THE SMALL CRAFT ADVISORY REMAINS IN
EFFECT. THE FLOW OVER THE INLAND WATERS WILL REMAIN LIGHT OR LIGHT
NORTHERLY. WESTERLY FLOW WILL DEVELOP IN THE CENTRAL AND EASTERN
STRAIT OF JUAN DE FUCA THE NEXT COUPLE OF EVENINGS AND COULD REACH
SMALL CRAFT STRENGTH THE NEXT. THE FLOW WILL BECOME MORE STRONGLY
OFFSHORE BY SATURDAY NIGHT AND SUNDAY. ONSHORE FLOW RESUMES EARLY
NEXT WEEK.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$




000
FXUS66 KSEW 022215
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
315 PM PDT THU JUL 2 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR SUNNY AND HOT WEATHER.

&&

.SHORT TERM...THE STRONG UPPER LEVEL RIDGE OVER THE PACNW THIS
AFTERNOON WILL WEAKEN SLIGHTLY FRIDAY AND SATURDAY AS A LARGE UPPER
LEVEL LOW MOVES ACROSS WESTERN CANADA...BRUSHING W WA IN THE
PROCESS. THE AIR MASS OVER W WA IS HOT WITH RECORD OR NEAR RECORD
HIGH TEMPERATURES EXPECTED THIS AFTERNOON IN THE CENTRAL PUGET SOUND
METRO AREA...WHERE HIGHS WILL REACH THE LOWER TO MID 90S.

500 MB HEIGHTS WILL FALL A LITTLE FRIDAY AND SATURDAY DUE TO THE
CANADIAN LOW BRUSHING THE AREA. THIS SHOULD PROVIDE A LITTLE COOLING
SO THAT MAX TEMPS LOWER INTO THE 80S TO LOWER 90S FRIDAY AND THEN
MAINLY THE 80S ON SATURDAY.

WITH MAX TEMPERATURES STILL TOUCHING THE LOWER 90S FRIDAY...THE HEAT
ADVISORY FOR THE PUGET SOUND METRO CORRIDOR...INCLUDING SEATTLE
BELLEVUE TACOMA AND THE EAST PUGET SOUND LOWLANDS HAS BEEN EXTENDED
THROUGH 9 PM FRIDAY EVENING. A SPECIAL WEATHER STATEMENT WILL BE
ISSUED TO SUPPLEMENT THE HEAT ADVISORY...DISCUSSING THE HEAT THROUGH
THE HOLIDAY WEEKEND.

PRESSURE GRADIENTS ARE CURRENTLY FLAT OR WEAKLY OFFSHORE THIS
AFTERNOON...BUT WEAK ONSHORE FLOW IS STILL EXPECTED TO DEVELOP
TONIGHT. AT 2 PM THERE WAS A BANK OF STRATUS ABOUT 130 MILES
OFFSHORE WHICH THE ARW MODEL BRINGS TO THE COAST SOMETIME THIS
EVENING...THEN PARTWAY INLAND LATE TONIGHT. THE MODEL IS PROBABLY A
LITTLE FAST...BUT EVEN SO...STRATUS IS NOT EXPECTED TO REACH THE
PUGET SOUND REGION. LOW TEMPERATURES OVERNIGHT IN THE ADVISORY AREA
ARE STILL EXPECTED TO ONLY COOL TO THE UPPER 50S AND 60S. OUTSIDE
THE ADVISORY AREA THERE WILL BE BETTER COOLING AND MORE RELIEF FROM
THE HEAT WITH LOWS MAINLY IN THE 50S.

AS THE CANADIAN LOW DEPARTS TO THE E OVER CENTRAL CANADA ON
SATURDAY...A SURFACE RIDGE WILL MOVE S OVER SOUTHERN B.C. SATURDAY
AFTERNOON AND EVENING IN THE WAKE OF THE LOW. THIS SURFACE RIDGE
WILL INCREASE THE NORTHERLY FLOW OVER W WA SATURDAY EVENING...THEN
TURN THE LOW LEVEL FLOW TO E-NE OFFSHORE SATURDAY NIGHT. THE
OFFSHORE FLOW WILL PUSH SUNDAYS MAX TEMPS INTO THE 80S TO MID 90S
OVER MUCH OF W WA INCLUDING THE COAST...WITH POTENTIAL RECORD
TEMPERATURES FOR THE DATE IN SEVERAL SPOTS. THE OFFSHORE FLOW WILL
WEAKEN SUNDAY NIGHT. KAM

.LONG TERM...A SOMEWHAT BROAD WEAK UPPER LEVEL TROUGH WITH NW FLOW
ALOFT WILL BE OVER THE PACNW MONDAY THROUGH THURSDAY. MOSTLY SUNNY
WEATHER WILL CONTINUE BUT THE AIR MASS WILL BE A LITTLE COOLER WITH
500 MB HEIGHTS DOWN TO 5820 TO 5840 METERS. ONSHORE FLOW WILL REMAIN
GENERALLY WESTERLY AND WEAK FOR LIMITED STRATUS. MAX TEMPS ON MONDAY
WILL BE IN THE 80S TO LOWER 90S...A STEP DOWN FROM SUNDAYS HOT
READINGS. SLIGHTLY MORE AIR MASS COOLING SHOULD DROP THE WARMEST
SPOTS INTO THE 80S TUESDAY THROUGH THURSDAY. THE GFS HAS SOME PRECIP
BRUSHING THE FAR N CASCADES TUESDAY AND WEDNESDAY CAUSED BY WEAK
SHORTWAVE TROUGHS MOVING ACROSS SOUTHERN B.C.  ECMWF SHOWS ABOUT THE
SAME ON TUESDAY...BUT THERE IS STILL ENOUGH UNCERTAINTY TO HOLD OFF
ON SHOWERS FOR A LITTLE LONGER. KAM

&&

.AVIATION...HIGH PRESSURE ALOFT THROUGH FRIDAY. WESTERLY FLOW ALOFT
WILL REMAIN LIGHT WITH LIGHT ONSHORE FLOW AT LOW LEVELS. THE AIR
MASS WILL BE STABLE AND REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH TONIGHT...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 6-10 KT...BECOMING NW MIDDAY TODAY...THEN N-NE AGAIN
AFTER SUNSET. DTM

&&

.MARINE...NORTHWESTERLY GRADIENTS WILL REMAIN STRONG OVER THE OUTER
COASTAL WATERS THROUGH SATURDAY. THE SMALL CRAFT ADVISORY REMAINS IN
EFFECT. THE FLOW OVER THE INLAND WATERS WILL REMAIN LIGHT OR LIGHT
NORTHERLY. WESTERLY FLOW WILL DEVELOP IN THE CENTRAL AND EASTERN
STRAIT OF JUAN DE FUCA THE NEXT COUPLE OF EVENINGS AND COULD REACH
SMALL CRAFT STRENGTH THE NEXT. THE FLOW WILL BECOME MORE STRONGLY
OFFSHORE BY SATURDAY NIGHT AND SUNDAY. ONSHORE FLOW RESUMES EARLY
NEXT WEEK.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
     SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$





000
FXUS66 KSEW 021618
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
918 AM PDT THU JUL 2 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE STRONG UPPER LEVEL RIDGE OVER THE PACNW TODAY WILL
WEAKEN SLIGHTLY FRIDAY AND SATURDAY AS A LARGE UPPER LEVEL LOW MOVES
ACROSS WESTERN CANADA...BRUSHING W WA IN THE PROCESS. TODAY WILL BE
A HOT DAY...PERHAPS WITH RECORD HIGH TEMPERATURES IN THE CENTRAL
PUGET SOUND METRO AREA WHERE HIGHS WILL REACH THE LOWER TO MID 90S.
A HEAT ADVISORY REMAINS IN EFFECT THROUGH 9 PM THIS EVENING FOR THE
PUGET SOUND METRO CORRIDOR...INCLUDING SEATTLE BELLEVUE TACOMA AND
THE EAST PUGET SOUND LOWLANDS.

500 MB HEIGHTS WILL FALL A LITTLE FRIDAY AND SATURDAY DUE TO THE
CANADIAN LOW BRUSHING THE AREA. THIS SHOULD PROVIDE A LITTLE COOLING
SO THAT MAX TEMPS LOWER INTO THE 80S TO LOWER 90S BOTH DAYS.

ONSHORE FLOW WAS NOT VERY STRONG LAST NIGHT SO THE ONLY STRATUS THAT
FORMED WAS RIGHT ALONG THE COASTLINE. THERE IS A BANK OF STRATUS
ABOUT 200 MILES OFFSHORE WHICH SHOULD REACH THE COAST SOMETIME THIS
EVENING...THEN PUSH PARTWAY INLAND LATE TONIGHT. ALTHOUGH THE
STRATUS IS NOT EXPECTED TO REACH THE PUGET SOUND REGION IT MIGHT
PROVIDE SOME SLIGHT COOLING. LOW TEMPERATURES OVERNIGHT ARE STILL
EXPECTED TO COOL TO THE UPPER 50S TO MID 60S.

AS THE CANADIAN LOW MOVES OVER CENTRAL CANADA ON SATURDAY...A
SURFACE RIDGE WILL BE MOVING S OVER SOUTHERN B.C. SATURDAY AFTERNOON
AND EVENING IN THE WAKE OF THE LOW. THE SURFACE RIDGE WILL INCREASE
THE NORTHERLY FLOW OVER W WA SATURDAY AFTERNOON...THEN TURN THE FLOW
TO OFFSHORE E-NE SATURDAY NIGHT. THE OFFSHORE FLOW WILL SET UP
ANOTHER HOT DAY ON SUNDAY. KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 230 AM AFD...SUNDAY SHOULD
BE THE WARMEST DAY OF THE WEEK...POSSIBLY THE WARMEST DAY OF THE
YEAR SO FAR IN SOME LOCATIONS. LOW LEVEL OFFSHORE FLOW WILL PEAK
WHICH WILL ALLOW HIGHS TO WARM INTO THE LOWER TO MID 90S FOR THE
INTERIOR. EVEN THE COAST SHOULD BE VERY WARM IN THIS PATTERN.

ONSHORE FLOW WILL RETURN MONDAY THROUGH WEDNESDAY BUT IT WILL NOT
EVER GET VERY STRONG. HIGHS SHOULD WILL COOL SEVERAL DEGREES
MONDAY...BUT MID TO UPPER 80S WILL STILL BE COMMON FROM SEATTLE
SOUTH. SEVERAL MORE DEGREES OF COOLING SHOULD OCCUR TUESDAY WITH
HIGHS ONLY A FEW DEGREES ABOVE NORMAL. THERE DOES NOT APPEAR TO BE
ANY THREAT OF PRECIPITATION THROUGH THE MIDDLE OF NEXT WEEK.
SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT THROUGH FRIDAY. WESTERLY FLOW ALOFT
WILL REMAIN LIGHT WITH LIGHT ONSHORE FLOW AT LOW LEVELS. THE AIR
MASS WILL BE STABLE AND REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH TONIGHT...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 6-10 KT...BECOMING NW MIDDAY TODAY...THEN N-NE AGAIN
AFTER SUNSET. DTM

&&

.MARINE...NO UPDATES. WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY
NIGHT...WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER
EASTERN WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL
CONTINUE OVER THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY
WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT
DURING THE EVENING TO EARLY MORNING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE
RESULT WILL BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS.
WEAK ONSHORE FLOW WILL PROBABLY RESUME MONDAY.   MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY UNTIL 9 PM PDT THIS EVENING FOR
     WAZ509-555-556-558.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$





000
FXUS66 KSEW 021618
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
918 AM PDT THU JUL 2 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE STRONG UPPER LEVEL RIDGE OVER THE PACNW TODAY WILL
WEAKEN SLIGHTLY FRIDAY AND SATURDAY AS A LARGE UPPER LEVEL LOW MOVES
ACROSS WESTERN CANADA...BRUSHING W WA IN THE PROCESS. TODAY WILL BE
A HOT DAY...PERHAPS WITH RECORD HIGH TEMPERATURES IN THE CENTRAL
PUGET SOUND METRO AREA WHERE HIGHS WILL REACH THE LOWER TO MID 90S.
A HEAT ADVISORY REMAINS IN EFFECT THROUGH 9 PM THIS EVENING FOR THE
PUGET SOUND METRO CORRIDOR...INCLUDING SEATTLE BELLEVUE TACOMA AND
THE EAST PUGET SOUND LOWLANDS.

500 MB HEIGHTS WILL FALL A LITTLE FRIDAY AND SATURDAY DUE TO THE
CANADIAN LOW BRUSHING THE AREA. THIS SHOULD PROVIDE A LITTLE COOLING
SO THAT MAX TEMPS LOWER INTO THE 80S TO LOWER 90S BOTH DAYS.

ONSHORE FLOW WAS NOT VERY STRONG LAST NIGHT SO THE ONLY STRATUS THAT
FORMED WAS RIGHT ALONG THE COASTLINE. THERE IS A BANK OF STRATUS
ABOUT 200 MILES OFFSHORE WHICH SHOULD REACH THE COAST SOMETIME THIS
EVENING...THEN PUSH PARTWAY INLAND LATE TONIGHT. ALTHOUGH THE
STRATUS IS NOT EXPECTED TO REACH THE PUGET SOUND REGION IT MIGHT
PROVIDE SOME SLIGHT COOLING. LOW TEMPERATURES OVERNIGHT ARE STILL
EXPECTED TO COOL TO THE UPPER 50S TO MID 60S.

AS THE CANADIAN LOW MOVES OVER CENTRAL CANADA ON SATURDAY...A
SURFACE RIDGE WILL BE MOVING S OVER SOUTHERN B.C. SATURDAY AFTERNOON
AND EVENING IN THE WAKE OF THE LOW. THE SURFACE RIDGE WILL INCREASE
THE NORTHERLY FLOW OVER W WA SATURDAY AFTERNOON...THEN TURN THE FLOW
TO OFFSHORE E-NE SATURDAY NIGHT. THE OFFSHORE FLOW WILL SET UP
ANOTHER HOT DAY ON SUNDAY. KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 230 AM AFD...SUNDAY SHOULD
BE THE WARMEST DAY OF THE WEEK...POSSIBLY THE WARMEST DAY OF THE
YEAR SO FAR IN SOME LOCATIONS. LOW LEVEL OFFSHORE FLOW WILL PEAK
WHICH WILL ALLOW HIGHS TO WARM INTO THE LOWER TO MID 90S FOR THE
INTERIOR. EVEN THE COAST SHOULD BE VERY WARM IN THIS PATTERN.

ONSHORE FLOW WILL RETURN MONDAY THROUGH WEDNESDAY BUT IT WILL NOT
EVER GET VERY STRONG. HIGHS SHOULD WILL COOL SEVERAL DEGREES
MONDAY...BUT MID TO UPPER 80S WILL STILL BE COMMON FROM SEATTLE
SOUTH. SEVERAL MORE DEGREES OF COOLING SHOULD OCCUR TUESDAY WITH
HIGHS ONLY A FEW DEGREES ABOVE NORMAL. THERE DOES NOT APPEAR TO BE
ANY THREAT OF PRECIPITATION THROUGH THE MIDDLE OF NEXT WEEK.
SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT THROUGH FRIDAY. WESTERLY FLOW ALOFT
WILL REMAIN LIGHT WITH LIGHT ONSHORE FLOW AT LOW LEVELS. THE AIR
MASS WILL BE STABLE AND REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE NEAR THE COAST.

SKIES WILL BE GENERALLY CLEAR THROUGH TONIGHT...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...N WIND 6-10 KT...BECOMING NW MIDDAY TODAY...THEN N-NE AGAIN
AFTER SUNSET. DTM

&&

.MARINE...NO UPDATES. WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY
NIGHT...WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER
EASTERN WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL
CONTINUE OVER THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY
WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT
DURING THE EVENING TO EARLY MORNING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE
RESULT WILL BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS.
WEAK ONSHORE FLOW WILL PROBABLY RESUME MONDAY.   MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY UNTIL 9 PM PDT THIS EVENING FOR
     WAZ509-555-556-558.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$




000
FXUS66 KSEW 020930
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
230 AM PDT THU JUL 2 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...AN UPPER RIDGE OVER THE AREA WILL SHIFT WEST OVER THE
EASTERN PACIFIC THE NEXT FEW DAYS. AT THE SURFACE...ONSHORE FLOW
WILL PREVAIL. TODAY WILL BE THE WARMEST DAY OUT OF THE NEXT THREE.
HIGHS IN THE LOWER 90S WILL BE COMMON OVER THE INTERIOR FROM ABOUT
SEATTLE SOUTH. A HEAT ADVISORY IS IN EFFECT THROUGH THIS EVENING
FOR THIS. OTHER THAN SOME POSSIBLE LOW CLOUDS RIGHT ALONG THE
COAST THIS MORNING...IT WILL BE ANOTHER SUNNY DAY TODAY.

ONSHORE FLOW WILL INCREASE A BIT ON FRIDAY AND UPPER HEIGHTS WILL
FALL SLIGHTLY OVER THE AREA. THE NET RESULT SHOULD BE A FEW
DEGREES OF COOLING. HIGHS WILL STILL BE WELL ABOVE NORMAL
HOWEVER...MOSTLY IN THE 80S OVER THE INTERIOR AND 70S NEAR THE
COAST AND WATER. THERE WILL PROBABLY BE A BIT MORE LOW CLOUDS NEAR
THE COAST FRIDAY MORNING WITH STRONGER ONSHORE FLOW.

UPPER HEIGHTS WILL CONTINUE TO GRADUALLY FALL ACROSS THE AREA ON
SATURDAY AS AN UPPER TROUGH MOVES OVER THE NORTHERN ROCKIES. LOW
LEVEL FLOW ACTUALLY WEAKENS AND BEGINS TO TURN OFFSHORE WHICH
SHOULD OFFSET ANY MINOR COOLING FROM THE LOWERING UPPER HEIGHTS.
HIGHS WILL BE ABOUT THE SAME AS FRIDAY...WELL ABOVE NORMAL.
SCHNEIDER

.LONG TERM...SUNDAY SHOULD BE THE WARMEST DAY OF THE
WEEK...POSSIBLY THE WARMEST DAY OF THE YEAR SO FAR IN SOME
LOCATIONS. LOW LEVEL OFFSHORE FLOW WILL PEAK WHICH WILL ALLOW
HIGHS TO WARM INTO THE LOWER TO MID 90S FOR THE INTERIOR. EVEN THE
COAST SHOULD BE VERY WARM IN THIS PATTERN.

ONSHORE FLOW WILL RETURN MONDAY THROUGH WEDNESDAY BUT IT WILL NOT
EVER GET VERY STRONG. HIGHS SHOULD WILL COOL SEVERAL DEGREES
MONDAY...BUT MID TO UPPER 80S WILL STILL BE COMMON FROM SEATTLE
SOUTH. SEVERAL MORE DEGREES OF COOLING SHOULD OCCUR TUESDAY WITH
HIGHS ONLY A FEW DEGREES ABOVE NORMAL. THERE DOES NOT APPEAR TO BE
ANY THREAT OF PRECIPITATION THROUGH THE MIDDLE OF NEXT WEEK.
SCHNEIDER

&&

.AVIATION...WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON WILL
CONTINUE THROUGH TONIGHT...WITH LIGHT ONSHORE FLOW AT LOW LEVELS.
THE AIR MASS WILL REMAIN DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE.

SKIES WILL BE GENERALLY CLEAR THROUGH TONIGHT...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...NORTH TO NORTHEAST WIND 4-10 KT...BECOMING NORTHWEST MIDDAY
TODAY...THEN NORTH TO NORTHEAST AGAIN AFTER SUNSET. MCDONNAL

&&

.MARINE...WEAK ONSHORE FLOW WILL CONTINUE THROUGH FRIDAY NIGHT...
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE OVER EASTERN
WASHINGTON. SMALL CRAFT ADVISORY NORTHWEST WINDS WILL CONTINUE OVER
THE OUTER COASTAL WATERS...WITH SMALL CRAFT ADVISORY WESTERLIES IN
THE CENTRAL STRAIT OF JUAN DE FUCA AND EASTERN STRAIT DURING THE
EVENING TO EARLY MORNING HOURS.

LOW PRESSURE WILL DEVELOP ALONG THE WASHINGTON COAST THIS WEEKEND
AND HIGH PRESSURE WILL MOVE INTO SOUTHWEST CANADA. THE
RESULT WILL BE OFFSHORE FLOW AND WINDS SHOULD REMAIN 20 KT OR LESS.
WEAK ONSHORE FLOW WILL PROBABLY RESUME MONDAY. MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY UNTIL 9 PM PDT THIS EVENING FOR
     WAZ509-555-556-558.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND
     EAST STRAIT OF JUAN DE FUCA.

&&

$$





000
FXUS66 KSEW 020344
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...A BROAD UPPER LEVEL RIDGE REMAINS OVER THE AREA WITH
HEIGHTS IN THE 590 DM RANGE. A WEAK UPPER LEVEL SHORTWAVE TROUGH
WILL MOVE THROUGH THE AREA EARLY THURSDAY BUT HAVE LITTLE EFFECT ON
THE OBSERVED WEATHER...WITH HOT TEMPERATURES FORECAST. LATE THURSDAY
INTO EARLY FRIDAY...SOME WEAK ONSHORE FLOW IS POSSIBLE MODERATING
THE TEMPERATURES ON FRIDAY BY A FEW DEGREES.

FRIDAY INTO SATURDAY MORNING...STRONGER WEST SOUTHWESTERLY SURFACE
GRADIENTS WILL MAKE FOR SLIGHTLY STRONGER ONSHORE FLOW. IN
ADDITION...AN UPPER LEVEL LOW WILL MOVE OVER NORTHERN BC...PUSHING
UPPER LEVEL HEIGHTS DOWN TO THE 584 DM RANGE. SATURDAY WILL LIKELY
BE THE COOLEST DAY OF THE WEEKEND WITH HIGHS IN THE 80S AROUND THE
PUGET SOUND AREA. ALTHOUGH IT WILL BE SLIGHTLY COOLER...TEMPS WILL
STILL BE ABOVE AVERAGE FOR INDEPENDENCE DAY...AND FOLKS SHOULD
REMEMBER TO BRING WATER AND STAY HYDRATED DURING FESTIVITIES. JSMITH

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

CLIMATE...THIS WAS THE WARMEST JUNE IN SEATTLE IN RECORDED HISTORY.
THE AVERAGE TEMPERATURE AT SEA-TAC AIRPORT WAS 67.7
DEGREES...BLOWING SECOND PLACE OUT OF THE WATER AT 64.9 DEGREES SET
IN 1992. IN ADDITION...THIS WAS THE SECOND WARMEST JANUARY THROUGH
JUNE IN SEATTLE HISTORY...WITH THE AVERAGE TEMPERATURE BEING 53.8
DEGREES AT SEA-TAC AIRPORT. THE RECORD STANDS AT 54.1 DEGREES SET IN
1934 WHEN RECORDS WERE KEPT AT THE SEATTLE FEDERAL BUILDING. JSMITH

&&

.AVIATION...A SMALL UPPER RIDGE ALONG THE CASCADES THIS EVENING WILL
MOVE EAST TONIGHT...WITH A SMALL UPPER TROUGH MOVING ACROSS THE
REGION LATE TONIGHT AND THURSDAY MORNING. WESTERLY FLOW ALOFT OVER
WESTERN WASHINGTON WILL CONTINUE...ALONG WITH LIGHT ONSHORE FLOW AT
LOW LEVELS. THE AIR MASS IS DRY EXCEPT FOR SHALLOW SURFACE-BASED
MARINE MOISTURE.

SKIES WILL BE GENERALLY CLEAR THROUGH THURSDAY...EXCEPT FOR AREAS OF
LATE NIGHT AND MORNING STRATUS ALONG THE COAST.

KSEA...NORTH TO NORTHEAST WIND 4-10 KT...BECOMING NORTHWEST MIDDAY
THURSDAY.   MCDONNAL

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND SMALL CRAFT ADVISORY
WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRESSURE WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...
     TACOMA...AND EAST PUGET SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL
     AND EAST STRAIT OF JUAN DE FUCA.

&&

$$

WWW.WEATHER.GOV/SEATTLE




000
FXUS66 KSEW 020003 CCA
AFDSEW

AREA FORECAST DISCUSSION...CORRECTED WARNINGS SECTION
NATIONAL WEATHER SERVICE SEATTLE WA
308 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL LONGWAVE RIDGE OVER THE PACIFIC
NORTHWEST WILL REMAIN OVER THE REGION THURSDAY THEN WEAKEN A LITTLE
FRIDAY AND SATURDAY. THE WEAK UPPER LEVEL SHORTWAVE TROUGH NEAR
47N/130W WILL MOVE ACROSS W WA AROUND 12Z THURSDAY BUT WILL HAVE NO
REAL IMPACT ON TEMPERATURES THURSDAY. THE HOT AIR MASS CURRENTLY IN
PLACE OVER THE AREA SHOULD PRODUCE INLAND HIGHS IN THE MID 80S TO
LOWER 90S ON THURSDAY...MUCH LIKE TODAY. PRESSURE GRADIENTS REMAIN
FLAT OR WEAKLY OFFSHORE THIS AFTERNOON...AND WITH NO VISIBLE STRATUS
ON THE COAST...ONLY PATCHY STRATUS IS LIKELY ALONG THE COAST
THURSDAY MORNING WITH NO COOLING HELP INLAND TONIGHT. LOW
TEMPERATURES TONIGHT WILL DROP INTO THE 50S FOR MOST AREAS...BUT
LOWS IN THE SEATTLE...BELLEVUE...TACOMA METRO AREA CORRIDOR AS WELL
AS PARTS OF THE EAST PUGET SOUND LOWLANDS WILL ONLY REACH THE UPPER
50S TO MID 60S. THE HOT TEMPERATURES TODAY THURSDAY COMBINED WITH
THE WARMER METRO CORRIDOR LOWS TONIGHT MERIT KEEPING THE HEAT
ADVISORY IN PLACE THROUGH AT LEAST THURSDAY EVENING.

THURSDAY MORNINGS UPPER LEVEL TROUGH FINALLY SEEMS TO HAVE AN EFFECT
THURSDAY NIGHT...AS WESTERLY ONSHORE FLOW INCREASES BEHIND THE
DEPARTING TROUGH. STRATUS SHOULD RETURN TO THE COAST AND THE ONSHORE
FLOW SHOULD PUSH SOME COOLER AIR PARTWAY INLAND. THE UPPER LEVEL
LONGWAVE RIDGE OVER THE REGION ALSO WEAKENS A LITTLE AS A LARGE LOW
MOVES E ACROSS FAR NORTHERN B.C.  THE COMBINED COOLING EFFECTS
SHOULD ALLOW MAX TEMPS TO COOL INTO THE UPPER 70S AND MAINLY 80S
BOTH FRIDAY AND SATURDAY. WEAK WESTERLY ONSHORE FLOW WILL PREVAIL
THROUGH FRIDAY NIGHT BUT THE MARINE INFLUENCE WILL BE RESTRICTED TO
MAINLY THE COAST. KAM

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

.AVIATION...A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN ACROSS
WESTERN WASHINGTON FOR THE NEXT SEVERAL DAYS. LIGHT WESTERLY FLOW
ALOFT...BECOMING MORE NORTHERLY LATER TONIGHT AND THURSDAY. WEAK LOW
LEVEL ONSHORE FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY
EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

STRATUS HAS CLEARED EVEN FROM THE COAST THIS AFTERNOON. MARINE
STRATUS WILL REFORM ALONG THE COAST TONIGHT AND THURSDAY MORNING.
IFR STRATUS MAY AFFECT THE KHQM TERMINAL AT TIMES BY LATER THIS
EVENING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT...BECOMING NORTH-NORTHEAST 4-7 KT
AFTER SUNSET. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
      SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
      STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 020003 CCA
AFDSEW

AREA FORECAST DISCUSSION...CORRECTED WARNINGS SECTION
NATIONAL WEATHER SERVICE SEATTLE WA
308 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL LONGWAVE RIDGE OVER THE PACIFIC
NORTHWEST WILL REMAIN OVER THE REGION THURSDAY THEN WEAKEN A LITTLE
FRIDAY AND SATURDAY. THE WEAK UPPER LEVEL SHORTWAVE TROUGH NEAR
47N/130W WILL MOVE ACROSS W WA AROUND 12Z THURSDAY BUT WILL HAVE NO
REAL IMPACT ON TEMPERATURES THURSDAY. THE HOT AIR MASS CURRENTLY IN
PLACE OVER THE AREA SHOULD PRODUCE INLAND HIGHS IN THE MID 80S TO
LOWER 90S ON THURSDAY...MUCH LIKE TODAY. PRESSURE GRADIENTS REMAIN
FLAT OR WEAKLY OFFSHORE THIS AFTERNOON...AND WITH NO VISIBLE STRATUS
ON THE COAST...ONLY PATCHY STRATUS IS LIKELY ALONG THE COAST
THURSDAY MORNING WITH NO COOLING HELP INLAND TONIGHT. LOW
TEMPERATURES TONIGHT WILL DROP INTO THE 50S FOR MOST AREAS...BUT
LOWS IN THE SEATTLE...BELLEVUE...TACOMA METRO AREA CORRIDOR AS WELL
AS PARTS OF THE EAST PUGET SOUND LOWLANDS WILL ONLY REACH THE UPPER
50S TO MID 60S. THE HOT TEMPERATURES TODAY THURSDAY COMBINED WITH
THE WARMER METRO CORRIDOR LOWS TONIGHT MERIT KEEPING THE HEAT
ADVISORY IN PLACE THROUGH AT LEAST THURSDAY EVENING.

THURSDAY MORNINGS UPPER LEVEL TROUGH FINALLY SEEMS TO HAVE AN EFFECT
THURSDAY NIGHT...AS WESTERLY ONSHORE FLOW INCREASES BEHIND THE
DEPARTING TROUGH. STRATUS SHOULD RETURN TO THE COAST AND THE ONSHORE
FLOW SHOULD PUSH SOME COOLER AIR PARTWAY INLAND. THE UPPER LEVEL
LONGWAVE RIDGE OVER THE REGION ALSO WEAKENS A LITTLE AS A LARGE LOW
MOVES E ACROSS FAR NORTHERN B.C.  THE COMBINED COOLING EFFECTS
SHOULD ALLOW MAX TEMPS TO COOL INTO THE UPPER 70S AND MAINLY 80S
BOTH FRIDAY AND SATURDAY. WEAK WESTERLY ONSHORE FLOW WILL PREVAIL
THROUGH FRIDAY NIGHT BUT THE MARINE INFLUENCE WILL BE RESTRICTED TO
MAINLY THE COAST. KAM

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

.AVIATION...A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN ACROSS
WESTERN WASHINGTON FOR THE NEXT SEVERAL DAYS. LIGHT WESTERLY FLOW
ALOFT...BECOMING MORE NORTHERLY LATER TONIGHT AND THURSDAY. WEAK LOW
LEVEL ONSHORE FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY
EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

STRATUS HAS CLEARED EVEN FROM THE COAST THIS AFTERNOON. MARINE
STRATUS WILL REFORM ALONG THE COAST TONIGHT AND THURSDAY MORNING.
IFR STRATUS MAY AFFECT THE KHQM TERMINAL AT TIMES BY LATER THIS
EVENING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT...BECOMING NORTH-NORTHEAST 4-7 KT
AFTER SUNSET. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
      SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
      STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 020003 CCA
AFDSEW

AREA FORECAST DISCUSSION...CORRECTED WARNINGS SECTION
NATIONAL WEATHER SERVICE SEATTLE WA
308 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL LONGWAVE RIDGE OVER THE PACIFIC
NORTHWEST WILL REMAIN OVER THE REGION THURSDAY THEN WEAKEN A LITTLE
FRIDAY AND SATURDAY. THE WEAK UPPER LEVEL SHORTWAVE TROUGH NEAR
47N/130W WILL MOVE ACROSS W WA AROUND 12Z THURSDAY BUT WILL HAVE NO
REAL IMPACT ON TEMPERATURES THURSDAY. THE HOT AIR MASS CURRENTLY IN
PLACE OVER THE AREA SHOULD PRODUCE INLAND HIGHS IN THE MID 80S TO
LOWER 90S ON THURSDAY...MUCH LIKE TODAY. PRESSURE GRADIENTS REMAIN
FLAT OR WEAKLY OFFSHORE THIS AFTERNOON...AND WITH NO VISIBLE STRATUS
ON THE COAST...ONLY PATCHY STRATUS IS LIKELY ALONG THE COAST
THURSDAY MORNING WITH NO COOLING HELP INLAND TONIGHT. LOW
TEMPERATURES TONIGHT WILL DROP INTO THE 50S FOR MOST AREAS...BUT
LOWS IN THE SEATTLE...BELLEVUE...TACOMA METRO AREA CORRIDOR AS WELL
AS PARTS OF THE EAST PUGET SOUND LOWLANDS WILL ONLY REACH THE UPPER
50S TO MID 60S. THE HOT TEMPERATURES TODAY THURSDAY COMBINED WITH
THE WARMER METRO CORRIDOR LOWS TONIGHT MERIT KEEPING THE HEAT
ADVISORY IN PLACE THROUGH AT LEAST THURSDAY EVENING.

THURSDAY MORNINGS UPPER LEVEL TROUGH FINALLY SEEMS TO HAVE AN EFFECT
THURSDAY NIGHT...AS WESTERLY ONSHORE FLOW INCREASES BEHIND THE
DEPARTING TROUGH. STRATUS SHOULD RETURN TO THE COAST AND THE ONSHORE
FLOW SHOULD PUSH SOME COOLER AIR PARTWAY INLAND. THE UPPER LEVEL
LONGWAVE RIDGE OVER THE REGION ALSO WEAKENS A LITTLE AS A LARGE LOW
MOVES E ACROSS FAR NORTHERN B.C.  THE COMBINED COOLING EFFECTS
SHOULD ALLOW MAX TEMPS TO COOL INTO THE UPPER 70S AND MAINLY 80S
BOTH FRIDAY AND SATURDAY. WEAK WESTERLY ONSHORE FLOW WILL PREVAIL
THROUGH FRIDAY NIGHT BUT THE MARINE INFLUENCE WILL BE RESTRICTED TO
MAINLY THE COAST. KAM

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

.AVIATION...A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN ACROSS
WESTERN WASHINGTON FOR THE NEXT SEVERAL DAYS. LIGHT WESTERLY FLOW
ALOFT...BECOMING MORE NORTHERLY LATER TONIGHT AND THURSDAY. WEAK LOW
LEVEL ONSHORE FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY
EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

STRATUS HAS CLEARED EVEN FROM THE COAST THIS AFTERNOON. MARINE
STRATUS WILL REFORM ALONG THE COAST TONIGHT AND THURSDAY MORNING.
IFR STRATUS MAY AFFECT THE KHQM TERMINAL AT TIMES BY LATER THIS
EVENING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT...BECOMING NORTH-NORTHEAST 4-7 KT
AFTER SUNSET. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...HEAT ADVISORY FOR SEATTLE...BELLEVUE...TACOMA...AND EAST PUGET
      SOUND LOWLANDS ZONES.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
      STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 012207
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
308 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL LONGWAVE RIDGE OVER THE PACIFIC
NORTHWEST WILL REMAIN OVER THE REGION THURSDAY THEN WEAKEN A LITTLE
FRIDAY AND SATURDAY. THE WEAK UPPER LEVEL SHORTWAVE TROUGH NEAR
47N/130W WILL MOVE ACROSS W WA AROUND 12Z THURSDAY BUT WILL HAVE NO
REAL IMPACT ON TEMPERATURES THURSDAY. THE HOT AIR MASS CURRENTLY IN
PLACE OVER THE AREA SHOULD PRODUCE INLAND HIGHS IN THE MID 80S TO
LOWER 90S ON THURSDAY...MUCH LIKE TODAY. PRESSURE GRADIENTS REMAIN
FLAT OR WEAKLY OFFSHORE THIS AFTERNOON...AND WITH NO VISIBLE STRATUS
ON THE COAST...ONLY PATCHY STRATUS IS LIKELY ALONG THE COAST
THURSDAY MORNING WITH NO COOLING HELP INLAND TONIGHT. LOW
TEMPERATURES TONIGHT WILL DROP INTO THE 50S FOR MOST AREAS...BUT
LOWS IN THE SEATTLE...BELLEVUE...TACOMA METRO AREA CORRIDOR AS WELL
AS PARTS OF THE EAST PUGET SOUND LOWLANDS WILL ONLY REACH THE UPPER
50S TO MID 60S. THE HOT TEMPERATURES TODAY THURSDAY COMBINED WITH
THE WARMER METRO CORRIDOR LOWS TONIGHT MERIT KEEPING THE HEAT
ADVISORY IN PLACE THROUGH AT LEAST THURSDAY EVENING.

THURSDAY MORNINGS UPPER LEVEL TROUGH FINALLY SEEMS TO HAVE AN EFFECT
THURSDAY NIGHT...AS WESTERLY ONSHORE FLOW INCREASES BEHIND THE
DEPARTING TROUGH. STRATUS SHOULD RETURN TO THE COAST AND THE ONSHORE
FLOW SHOULD PUSH SOME COOLER AIR PARTWAY INLAND. THE UPPER LEVEL
LONGWAVE RIDGE OVER THE REGION ALSO WEAKENS A LITTLE AS A LARGE LOW
MOVES E ACROSS FAR NORTHERN B.C.  THE COMBINED COOLING EFFECTS
SHOULD ALLOW MAX TEMPS TO COOL INTO THE UPPER 70S AND MAINLY 80S
BOTH FRIDAY AND SATURDAY. WEAK WESTERLY ONSHORE FLOW WILL PREVAIL
THROUGH FRIDAY NIGHT BUT THE MARINE INFLUENCE WILL BE RESTRICTED TO
MAINLY THE COAST. KAM

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

.AVIATION...A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN ACROSS
WESTERN WASHINGTON FOR THE NEXT SEVERAL DAYS. LIGHT WESTERLY FLOW
ALOFT...BECOMING MORE NORTHERLY LATER TONIGHT AND THURSDAY. WEAK LOW
LEVEL ONSHORE FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY
EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

STRATUS HAS CLEARED EVEN FROM THE COAST THIS AFTERNOON. MARINE
STRATUS WILL REFORM ALONG THE COAST TONIGHT AND THURSDAY MORNING.
IFR STRATUS MAY AFFECT THE KHQM TERMINAL AT TIMES BY LATER THIS
EVENING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT...BECOMING NORTH-NORTHEAST 4-7 KT
AFTER SUNSET. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 012207
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
308 PM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL LONGWAVE RIDGE OVER THE PACIFIC
NORTHWEST WILL REMAIN OVER THE REGION THURSDAY THEN WEAKEN A LITTLE
FRIDAY AND SATURDAY. THE WEAK UPPER LEVEL SHORTWAVE TROUGH NEAR
47N/130W WILL MOVE ACROSS W WA AROUND 12Z THURSDAY BUT WILL HAVE NO
REAL IMPACT ON TEMPERATURES THURSDAY. THE HOT AIR MASS CURRENTLY IN
PLACE OVER THE AREA SHOULD PRODUCE INLAND HIGHS IN THE MID 80S TO
LOWER 90S ON THURSDAY...MUCH LIKE TODAY. PRESSURE GRADIENTS REMAIN
FLAT OR WEAKLY OFFSHORE THIS AFTERNOON...AND WITH NO VISIBLE STRATUS
ON THE COAST...ONLY PATCHY STRATUS IS LIKELY ALONG THE COAST
THURSDAY MORNING WITH NO COOLING HELP INLAND TONIGHT. LOW
TEMPERATURES TONIGHT WILL DROP INTO THE 50S FOR MOST AREAS...BUT
LOWS IN THE SEATTLE...BELLEVUE...TACOMA METRO AREA CORRIDOR AS WELL
AS PARTS OF THE EAST PUGET SOUND LOWLANDS WILL ONLY REACH THE UPPER
50S TO MID 60S. THE HOT TEMPERATURES TODAY THURSDAY COMBINED WITH
THE WARMER METRO CORRIDOR LOWS TONIGHT MERIT KEEPING THE HEAT
ADVISORY IN PLACE THROUGH AT LEAST THURSDAY EVENING.

THURSDAY MORNINGS UPPER LEVEL TROUGH FINALLY SEEMS TO HAVE AN EFFECT
THURSDAY NIGHT...AS WESTERLY ONSHORE FLOW INCREASES BEHIND THE
DEPARTING TROUGH. STRATUS SHOULD RETURN TO THE COAST AND THE ONSHORE
FLOW SHOULD PUSH SOME COOLER AIR PARTWAY INLAND. THE UPPER LEVEL
LONGWAVE RIDGE OVER THE REGION ALSO WEAKENS A LITTLE AS A LARGE LOW
MOVES E ACROSS FAR NORTHERN B.C.  THE COMBINED COOLING EFFECTS
SHOULD ALLOW MAX TEMPS TO COOL INTO THE UPPER 70S AND MAINLY 80S
BOTH FRIDAY AND SATURDAY. WEAK WESTERLY ONSHORE FLOW WILL PREVAIL
THROUGH FRIDAY NIGHT BUT THE MARINE INFLUENCE WILL BE RESTRICTED TO
MAINLY THE COAST. KAM

.LONG TERM...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT WITH THE
OVERALL PATTERN SUNDAY THROUGH WEDNESDAY...AND THIS EXTENDS TO THE
850 MB TEMPERATURE TREND. SUNDAY LOOKS LIKE ANOTHER HOT DAY. THIS
TIME WE HAVE A SURFACE RIDGE BUILDING BRIEFLY OVER B.C. SATURDAY
NIGHT...BEHIND THE DEPARTING NORTH B.C. UPPER LEVEL LOW. THE SURFACE
RIDGE CAUSES A BRIEF PERIOD OF OFFSHORE FLOW OVER W WA WHICH WILL
CAUSE MAX TEMPS TO SPIKE BACK INTO THE LOWER TO MID 90S OVER MUCH OF
THE INTERIOR ON SUNDAY. THE OFFSHORE FLOW SHOULD EXTEND SUNDAYS HOT
WEATHER TO THE COAST AS WELL...WITH READINGS IN THE 80S TO LOWER
90S. THE OFFSHORE FLOW WILL WEAKEN SUNDAY NIGHT WITH HIGHS BACKING
OFF INTO THE 80S TO NEAR 90 ON MONDAY.

TUESDAY AND WEDNESDAY WILL BE COOLER AS A DRY UPPER LEVEL TROUGH
MOVES S OVER W WA. OH YES...NO RAIN IS EXPECTED FOR THE NEXT SEVEN
DAYS AND OUTSIDE OF COASTAL STRATUS...SKIES SHOULD BE MOSTLY CLEAR.
KAM

&&

.AVIATION...A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN ACROSS
WESTERN WASHINGTON FOR THE NEXT SEVERAL DAYS. LIGHT WESTERLY FLOW
ALOFT...BECOMING MORE NORTHERLY LATER TONIGHT AND THURSDAY. WEAK LOW
LEVEL ONSHORE FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY
EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

STRATUS HAS CLEARED EVEN FROM THE COAST THIS AFTERNOON. MARINE
STRATUS WILL REFORM ALONG THE COAST TONIGHT AND THURSDAY MORNING.
IFR STRATUS MAY AFFECT THE KHQM TERMINAL AT TIMES BY LATER THIS
EVENING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT...BECOMING NORTH-NORTHEAST 4-7 KT
AFTER SUNSET. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 011619
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
920 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL RIDGE OVER THE PACIFIC NORTHWEST
WILL BUILD A LITTLE TODAY AS AN UPPER LEVEL SHORTWAVE RIDGE MOVES
THROUGH THE TOP OF THE LONGWAVE RIDGE. GFS 500 MB HEIGHTS RISE TO
AROUND 5900 METERS OVER THE PUGET SOUND REGION. PRESSURE GRADIENTS
ARE ACTUALLY WEAKLY OFFSHORE THIS MORNING. THE ONLY STRATUS AROUND
THIS MORNING IS OVER GRAYS HARBOR...OTHERWISE SKIES WILL REMAIN
CLOUD FREE TODAY. WITH THE FULL DOSE OF SUNSHINE TODAY MAX
TEMPERATURES OVER THE INTERIOR FROM SEATTLE SOUTHWARD ARE EXPECTED
TO REACH THE UPPER 80S AND LOWER 90S. THE N INTERIOR...STRAIT...AND
COAST WILL BE A LITTLE COOLER WITH HIGHS IN THE 70S TO MID 80S.

MOST OF W WA IS EXPECTED TO COOL OFF INTO THE 50S OVERNIGHT...BUT
RELIEF WILL BE LESS IN THE METRO CORRIDOR FROM SEATTLE TO TACOMA AND
EASTWARD ACROSS THE LOWLANDS...WHERE OVERNIGHT LOWS SHOULD ONLY DROP
OFF INTO THE UPPER 50S TO MID 60S. ONSHORE FLOW WILL BE WEAK NW
TONIGHT SO NO STRATUS OR COOLER MARINE AIR MASS IS EXPECTED TO REACH
INLAND AREAS.

THURSDAY IS EXPECTED TO BE SIMILAR TO TODAY WITH THE HOTTEST AREAS
ONCE AGAIN REACHING THE UPPER 80S AND LOWER 90S. A HEAT ADVISORY
WILL BE ISSUED FOR THE AREAS THAT HAVE BOTH THE HOTTEST DAYTIME
TEMPERATURES TODAY AND THURSDAY AND THE WARMEST LOWS OVERNIGHT. THIS
WOULD BE THE SEATTLE BELLEVUE TACOMA AREA AS WELL AS THE EAST PUGET
SOUND LOWLANDS. THE OTHER HOT AREAS OF THE INTERIOR ARE EXPECTED TO
COOL OFF A BIT MORE TONIGHT.

THERE IS A WEAK UPPER LEVEL TROUGH OFFSHORE NEAR 45N/133W THAT
SHOULD TRACK ENE ACROSS NW WA THURSDAY MORNING. IT DOES NOT LOOK
LIKE THIS FEATURE WILL HAVE ANY IMPACT ON MAX TEMPS THURSDAY...BUT
IT DOES LOOK LIKE IT WILL INCREASE THE WESTERLY ONSHORE FLOW
THURSDAY EVENING.

FOR FRIDAY...THE GFS AND ECMWF ARE IN GOOD AGREEMENT IN SLIGHTLY
WEAKENING THE UPPER LEVEL RIDGE OVER THE REGION...AS AN UPPER LEVEL
LOW MOVES ACROSS FAR NORTHERN B.C.  COMBINED WITH THE SOMEWHAT
STRONGER WESTERLY ONSHORE FLOW THURSDAY NIGHT...THIS SHOULD BE
ENOUGH TO COOL MAX TEMPS 3-5 DEGREES...LEAVING MAX TEMPS IN THE 80S.
KAM

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT OVER THE PAC NW FOR THE NEXT COUPLE
DAYS. A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. LIGHT WESTERLY FLOW ALOFT...BECOMING MORE NORTHERLY LATER
TONIGHT AND THURSDAY. WEAK LOW LEVEL ONSHORE FLOW WILL CONTINUE. THE
AIR MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE
LAYER.

PATCHY STRATUS ALONG THE SOUTH WASHINGTON COAST WILL DISSIPATE BY
MIDDAY. MARINE STRATUS WILL REFORM ALONG THE COAST TONIGHT AND
THURSDAY MORNING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT TODAY...BECOMING NORTH-NORTHEAST 4-7
KT TONIGHT. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM/MCDONNAL


&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 011619
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
920 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL RIDGE OVER THE PACIFIC NORTHWEST
WILL BUILD A LITTLE TODAY AS AN UPPER LEVEL SHORTWAVE RIDGE MOVES
THROUGH THE TOP OF THE LONGWAVE RIDGE. GFS 500 MB HEIGHTS RISE TO
AROUND 5900 METERS OVER THE PUGET SOUND REGION. PRESSURE GRADIENTS
ARE ACTUALLY WEAKLY OFFSHORE THIS MORNING. THE ONLY STRATUS AROUND
THIS MORNING IS OVER GRAYS HARBOR...OTHERWISE SKIES WILL REMAIN
CLOUD FREE TODAY. WITH THE FULL DOSE OF SUNSHINE TODAY MAX
TEMPERATURES OVER THE INTERIOR FROM SEATTLE SOUTHWARD ARE EXPECTED
TO REACH THE UPPER 80S AND LOWER 90S. THE N INTERIOR...STRAIT...AND
COAST WILL BE A LITTLE COOLER WITH HIGHS IN THE 70S TO MID 80S.

MOST OF W WA IS EXPECTED TO COOL OFF INTO THE 50S OVERNIGHT...BUT
RELIEF WILL BE LESS IN THE METRO CORRIDOR FROM SEATTLE TO TACOMA AND
EASTWARD ACROSS THE LOWLANDS...WHERE OVERNIGHT LOWS SHOULD ONLY DROP
OFF INTO THE UPPER 50S TO MID 60S. ONSHORE FLOW WILL BE WEAK NW
TONIGHT SO NO STRATUS OR COOLER MARINE AIR MASS IS EXPECTED TO REACH
INLAND AREAS.

THURSDAY IS EXPECTED TO BE SIMILAR TO TODAY WITH THE HOTTEST AREAS
ONCE AGAIN REACHING THE UPPER 80S AND LOWER 90S. A HEAT ADVISORY
WILL BE ISSUED FOR THE AREAS THAT HAVE BOTH THE HOTTEST DAYTIME
TEMPERATURES TODAY AND THURSDAY AND THE WARMEST LOWS OVERNIGHT. THIS
WOULD BE THE SEATTLE BELLEVUE TACOMA AREA AS WELL AS THE EAST PUGET
SOUND LOWLANDS. THE OTHER HOT AREAS OF THE INTERIOR ARE EXPECTED TO
COOL OFF A BIT MORE TONIGHT.

THERE IS A WEAK UPPER LEVEL TROUGH OFFSHORE NEAR 45N/133W THAT
SHOULD TRACK ENE ACROSS NW WA THURSDAY MORNING. IT DOES NOT LOOK
LIKE THIS FEATURE WILL HAVE ANY IMPACT ON MAX TEMPS THURSDAY...BUT
IT DOES LOOK LIKE IT WILL INCREASE THE WESTERLY ONSHORE FLOW
THURSDAY EVENING.

FOR FRIDAY...THE GFS AND ECMWF ARE IN GOOD AGREEMENT IN SLIGHTLY
WEAKENING THE UPPER LEVEL RIDGE OVER THE REGION...AS AN UPPER LEVEL
LOW MOVES ACROSS FAR NORTHERN B.C.  COMBINED WITH THE SOMEWHAT
STRONGER WESTERLY ONSHORE FLOW THURSDAY NIGHT...THIS SHOULD BE
ENOUGH TO COOL MAX TEMPS 3-5 DEGREES...LEAVING MAX TEMPS IN THE 80S.
KAM

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT OVER THE PAC NW FOR THE NEXT COUPLE
DAYS. A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. LIGHT WESTERLY FLOW ALOFT...BECOMING MORE NORTHERLY LATER
TONIGHT AND THURSDAY. WEAK LOW LEVEL ONSHORE FLOW WILL CONTINUE. THE
AIR MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE
LAYER.

PATCHY STRATUS ALONG THE SOUTH WASHINGTON COAST WILL DISSIPATE BY
MIDDAY. MARINE STRATUS WILL REFORM ALONG THE COAST TONIGHT AND
THURSDAY MORNING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT TODAY...BECOMING NORTH-NORTHEAST 4-7
KT TONIGHT. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM/MCDONNAL


&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 011619
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
920 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL RIDGE OVER THE PACIFIC NORTHWEST
WILL BUILD A LITTLE TODAY AS AN UPPER LEVEL SHORTWAVE RIDGE MOVES
THROUGH THE TOP OF THE LONGWAVE RIDGE. GFS 500 MB HEIGHTS RISE TO
AROUND 5900 METERS OVER THE PUGET SOUND REGION. PRESSURE GRADIENTS
ARE ACTUALLY WEAKLY OFFSHORE THIS MORNING. THE ONLY STRATUS AROUND
THIS MORNING IS OVER GRAYS HARBOR...OTHERWISE SKIES WILL REMAIN
CLOUD FREE TODAY. WITH THE FULL DOSE OF SUNSHINE TODAY MAX
TEMPERATURES OVER THE INTERIOR FROM SEATTLE SOUTHWARD ARE EXPECTED
TO REACH THE UPPER 80S AND LOWER 90S. THE N INTERIOR...STRAIT...AND
COAST WILL BE A LITTLE COOLER WITH HIGHS IN THE 70S TO MID 80S.

MOST OF W WA IS EXPECTED TO COOL OFF INTO THE 50S OVERNIGHT...BUT
RELIEF WILL BE LESS IN THE METRO CORRIDOR FROM SEATTLE TO TACOMA AND
EASTWARD ACROSS THE LOWLANDS...WHERE OVERNIGHT LOWS SHOULD ONLY DROP
OFF INTO THE UPPER 50S TO MID 60S. ONSHORE FLOW WILL BE WEAK NW
TONIGHT SO NO STRATUS OR COOLER MARINE AIR MASS IS EXPECTED TO REACH
INLAND AREAS.

THURSDAY IS EXPECTED TO BE SIMILAR TO TODAY WITH THE HOTTEST AREAS
ONCE AGAIN REACHING THE UPPER 80S AND LOWER 90S. A HEAT ADVISORY
WILL BE ISSUED FOR THE AREAS THAT HAVE BOTH THE HOTTEST DAYTIME
TEMPERATURES TODAY AND THURSDAY AND THE WARMEST LOWS OVERNIGHT. THIS
WOULD BE THE SEATTLE BELLEVUE TACOMA AREA AS WELL AS THE EAST PUGET
SOUND LOWLANDS. THE OTHER HOT AREAS OF THE INTERIOR ARE EXPECTED TO
COOL OFF A BIT MORE TONIGHT.

THERE IS A WEAK UPPER LEVEL TROUGH OFFSHORE NEAR 45N/133W THAT
SHOULD TRACK ENE ACROSS NW WA THURSDAY MORNING. IT DOES NOT LOOK
LIKE THIS FEATURE WILL HAVE ANY IMPACT ON MAX TEMPS THURSDAY...BUT
IT DOES LOOK LIKE IT WILL INCREASE THE WESTERLY ONSHORE FLOW
THURSDAY EVENING.

FOR FRIDAY...THE GFS AND ECMWF ARE IN GOOD AGREEMENT IN SLIGHTLY
WEAKENING THE UPPER LEVEL RIDGE OVER THE REGION...AS AN UPPER LEVEL
LOW MOVES ACROSS FAR NORTHERN B.C.  COMBINED WITH THE SOMEWHAT
STRONGER WESTERLY ONSHORE FLOW THURSDAY NIGHT...THIS SHOULD BE
ENOUGH TO COOL MAX TEMPS 3-5 DEGREES...LEAVING MAX TEMPS IN THE 80S.
KAM

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT OVER THE PAC NW FOR THE NEXT COUPLE
DAYS. A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. LIGHT WESTERLY FLOW ALOFT...BECOMING MORE NORTHERLY LATER
TONIGHT AND THURSDAY. WEAK LOW LEVEL ONSHORE FLOW WILL CONTINUE. THE
AIR MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE
LAYER.

PATCHY STRATUS ALONG THE SOUTH WASHINGTON COAST WILL DISSIPATE BY
MIDDAY. MARINE STRATUS WILL REFORM ALONG THE COAST TONIGHT AND
THURSDAY MORNING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT TODAY...BECOMING NORTH-NORTHEAST 4-7
KT TONIGHT. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM/MCDONNAL


&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 011619
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
920 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...THE BROAD UPPER LEVEL RIDGE OVER THE PACIFIC NORTHWEST
WILL BUILD A LITTLE TODAY AS AN UPPER LEVEL SHORTWAVE RIDGE MOVES
THROUGH THE TOP OF THE LONGWAVE RIDGE. GFS 500 MB HEIGHTS RISE TO
AROUND 5900 METERS OVER THE PUGET SOUND REGION. PRESSURE GRADIENTS
ARE ACTUALLY WEAKLY OFFSHORE THIS MORNING. THE ONLY STRATUS AROUND
THIS MORNING IS OVER GRAYS HARBOR...OTHERWISE SKIES WILL REMAIN
CLOUD FREE TODAY. WITH THE FULL DOSE OF SUNSHINE TODAY MAX
TEMPERATURES OVER THE INTERIOR FROM SEATTLE SOUTHWARD ARE EXPECTED
TO REACH THE UPPER 80S AND LOWER 90S. THE N INTERIOR...STRAIT...AND
COAST WILL BE A LITTLE COOLER WITH HIGHS IN THE 70S TO MID 80S.

MOST OF W WA IS EXPECTED TO COOL OFF INTO THE 50S OVERNIGHT...BUT
RELIEF WILL BE LESS IN THE METRO CORRIDOR FROM SEATTLE TO TACOMA AND
EASTWARD ACROSS THE LOWLANDS...WHERE OVERNIGHT LOWS SHOULD ONLY DROP
OFF INTO THE UPPER 50S TO MID 60S. ONSHORE FLOW WILL BE WEAK NW
TONIGHT SO NO STRATUS OR COOLER MARINE AIR MASS IS EXPECTED TO REACH
INLAND AREAS.

THURSDAY IS EXPECTED TO BE SIMILAR TO TODAY WITH THE HOTTEST AREAS
ONCE AGAIN REACHING THE UPPER 80S AND LOWER 90S. A HEAT ADVISORY
WILL BE ISSUED FOR THE AREAS THAT HAVE BOTH THE HOTTEST DAYTIME
TEMPERATURES TODAY AND THURSDAY AND THE WARMEST LOWS OVERNIGHT. THIS
WOULD BE THE SEATTLE BELLEVUE TACOMA AREA AS WELL AS THE EAST PUGET
SOUND LOWLANDS. THE OTHER HOT AREAS OF THE INTERIOR ARE EXPECTED TO
COOL OFF A BIT MORE TONIGHT.

THERE IS A WEAK UPPER LEVEL TROUGH OFFSHORE NEAR 45N/133W THAT
SHOULD TRACK ENE ACROSS NW WA THURSDAY MORNING. IT DOES NOT LOOK
LIKE THIS FEATURE WILL HAVE ANY IMPACT ON MAX TEMPS THURSDAY...BUT
IT DOES LOOK LIKE IT WILL INCREASE THE WESTERLY ONSHORE FLOW
THURSDAY EVENING.

FOR FRIDAY...THE GFS AND ECMWF ARE IN GOOD AGREEMENT IN SLIGHTLY
WEAKENING THE UPPER LEVEL RIDGE OVER THE REGION...AS AN UPPER LEVEL
LOW MOVES ACROSS FAR NORTHERN B.C.  COMBINED WITH THE SOMEWHAT
STRONGER WESTERLY ONSHORE FLOW THURSDAY NIGHT...THIS SHOULD BE
ENOUGH TO COOL MAX TEMPS 3-5 DEGREES...LEAVING MAX TEMPS IN THE 80S.
KAM

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...HIGH PRESSURE ALOFT OVER THE PAC NW FOR THE NEXT COUPLE
DAYS. A WEAK SYSTEM WILL BRUSH BY TO THE NORTH OF WASHINGTON
TONIGHT. LIGHT WESTERLY FLOW ALOFT...BECOMING MORE NORTHERLY LATER
TONIGHT AND THURSDAY. WEAK LOW LEVEL ONSHORE FLOW WILL CONTINUE. THE
AIR MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE
LAYER.

PATCHY STRATUS ALONG THE SOUTH WASHINGTON COAST WILL DISSIPATE BY
MIDDAY. MARINE STRATUS WILL REFORM ALONG THE COAST TONIGHT AND
THURSDAY MORNING. OTHERWISE...SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-11 KT TODAY...BECOMING NORTH-NORTHEAST 4-7
KT TONIGHT. DTM

&&

.MARINE...RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST OF
THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
DTM/MCDONNAL


&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 010939
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
240 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...AN UPPER RIDGE WILL BE OVER THE PACIFIC NORTHWEST
THROUGH FRIDAY. TEMPERATURES WILL REMAIN WELL ABOVE NORMAL. OTHER
THAN SOME MORNING CLOUDS NEAR THE COAST...SKIES WILL BE GENERALLY
CLEAR EACH DAY. MOS GUIDANCE INDICATES THURSDAY WILL BE THE WARMEST
DAY FOR MOST AREAS. THE ECMWF 850 MB TEMPERATURES PEAK ON THURSDAY
AS WELL BUT THE GFS IS ACTUALLY WARMEST TODAY AND BOTH MODELS SHOW
THE WEAKEST ONSHORE FLOW TODAY VERSUS THURSDAY. EITHER WAY...THE
NEXT THREE DAYS WILL CONTINUE THE RECENT STRETCH OF VERY WARM
WEATHER FOR WESTERN WASHINGTON. SCHNEIDER

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...WESTERLY FLOW ALOFT WILL CONTINUE OVER WESTERN
WASHINGTON TODAY WITH A SMALL UPPER RIDGE MOVING OVER THE AREA THIS
AFTERNOON. THE FLOW WILL BACK TO SOUTHWEST TONIGHT AS A WEAK UPPER
TROUGH MOVES OVER SOUTHERN VANCOUVER ISLAND. WEAK LOW LEVEL ONSHORE
FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY EXCEPT FOR A
SHALLOW SURFACE-BASED MARINE LAYER.

THERE IS LITTLE TO NO MARINE STRATUS OVER THE FORECAST AREA
EARLY THIS MORNING. AREAS OF STRATUS COULD DEVELOP ALONG THE
COAST DURING THE NEXT FEW HOURS AND THEN DISSIPATE BY MIDDAY...WITH
THE PATTERN REPEATING ITSELF AGAIN TONIGHT AND THURSDAY MORNING.
OTHERWISE SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-12 KT TODAY...BECOMING NORTH TO NORTHEAST
4-8 KT TONIGHT. SKIES SHOULD REMAIN GENERALLY CLEAR.   MCDONNAL

&&

.MARINE...GALE FORCE WESTERLIES THAT DEVELOPED IN THE CENTRAL STRAIT
OF JUAN DE FUCA AND EAST ENTRANCE STRAIT TUESDAY EVENING EASED
OVERNIGHT. RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST
OF THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 010939
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
240 AM PDT WED JUL 1 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK FOR HOT AND DRY WEATHER.

&&

.SHORT TERM...AN UPPER RIDGE WILL BE OVER THE PACIFIC NORTHWEST
THROUGH FRIDAY. TEMPERATURES WILL REMAIN WELL ABOVE NORMAL. OTHER
THAN SOME MORNING CLOUDS NEAR THE COAST...SKIES WILL BE GENERALLY
CLEAR EACH DAY. MOS GUIDANCE INDICATES THURSDAY WILL BE THE WARMEST
DAY FOR MOST AREAS. THE ECMWF 850 MB TEMPERATURES PEAK ON THURSDAY
AS WELL BUT THE GFS IS ACTUALLY WARMEST TODAY AND BOTH MODELS SHOW
THE WEAKEST ONSHORE FLOW TODAY VERSUS THURSDAY. EITHER WAY...THE
NEXT THREE DAYS WILL CONTINUE THE RECENT STRETCH OF VERY WARM
WEATHER FOR WESTERN WASHINGTON. SCHNEIDER

.LONG TERM...THE UPPER RIDGE OVER THE AREA WILL RETROGRADE OFFSHORE
THIS WEEKEND AND EARLY NEXT WEEK. HEIGHTS WILL INITIALLY REMAIN HIGH
AND MODELS INDICATE A THERMAL TROUGH DEVELOPING ALONG THE COAST FOR
LOW LEVEL OFFSHORE FLOW. THIS COULD RESULT IN EVEN WARMER
TEMPERATURES WITH LOWER TO MID 90S POSSIBLE BY SUNDAY FOR PARTS OF
THE INTERIOR.

IT LOOKS LIKE THERE WILL BE SOME COOLING EARLY NEXT WEEK AS LOW
LEVEL ONSHORE FLOW INCREASES AGAIN AND UPPER HEIGHTS GRADUALLY LOWER
ACROSS THE REGION. TEMPERATURES WILL STILL BE A LITTLE ABOVE NORMAL
HOWEVER AND THERE IS NO PRECIPITATION EXPECTED THROUGH NEXT
TUESDAY. SCHNEIDER

&&

.AVIATION...WESTERLY FLOW ALOFT WILL CONTINUE OVER WESTERN
WASHINGTON TODAY WITH A SMALL UPPER RIDGE MOVING OVER THE AREA THIS
AFTERNOON. THE FLOW WILL BACK TO SOUTHWEST TONIGHT AS A WEAK UPPER
TROUGH MOVES OVER SOUTHERN VANCOUVER ISLAND. WEAK LOW LEVEL ONSHORE
FLOW WILL CONTINUE. THE AIR MASS WILL REMAIN DRY EXCEPT FOR A
SHALLOW SURFACE-BASED MARINE LAYER.

THERE IS LITTLE TO NO MARINE STRATUS OVER THE FORECAST AREA
EARLY THIS MORNING. AREAS OF STRATUS COULD DEVELOP ALONG THE
COAST DURING THE NEXT FEW HOURS AND THEN DISSIPATE BY MIDDAY...WITH
THE PATTERN REPEATING ITSELF AGAIN TONIGHT AND THURSDAY MORNING.
OTHERWISE SKIES SHOULD BE GENERALLY CLEAR.

KSEA...NORTHERLY WIND 6-12 KT TODAY...BECOMING NORTH TO NORTHEAST
4-8 KT TONIGHT. SKIES SHOULD REMAIN GENERALLY CLEAR.   MCDONNAL

&&

.MARINE...GALE FORCE WESTERLIES THAT DEVELOPED IN THE CENTRAL STRAIT
OF JUAN DE FUCA AND EAST ENTRANCE STRAIT TUESDAY EVENING EASED
OVERNIGHT. RELATIVELY WEAK ONSHORE FLOW WILL CONTINUE THROUGH
FRIDAY...WITH HIGH PRESSURE WELL OFFSHORE AND LOWER PRESSURE EAST
OF THE CASCADES. THE RESULT SHOULD BE SMALL CRAFT ADVISORY NORTHWEST
WINDS OVER THE OUTER COASTAL WATERS...AND MARGINAL SMALL CRAFT
ADVISORY WESTERLIES IN THE CENTRAL AND EAST STRAIT DURING THE
EVENING HOURS.

A THERMALLY INDUCED TROUGH OF LOW PRES WILL DEVELOP OVER WESTERN
WASHINGTON THIS WEEKEND...AND WINDS SHOULD BE 20 KT OR LESS.
MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...SMALL CRAFT ADVISORY OUTER COASTAL WATERS...CENTRAL AND EAST
     STRAIT OF JUAN DE FUCA.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 010333
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT TUE JUN 30 2015

.SYNOPSIS...HIGH PRESSURE ALOFT IS EXPECTED TO REMAIN OVER THE
PACIFIC NORTHWEST INTO EARLY NEXT WEEK FOR MORE QUITE WARM AND DRY
WEATHER.

&&

.SHORT TERM...UPPER HIGH OVER THE GREAT BASIN WITH 500 MB HEIGHTS
OVER WA IN THE 580S WITH WESTERLY FLOW ALOFT THIS EVENING. UPPER LOW
IN THE WESTERN GULF OF ALASKA CONTINUES TO SPIN SHORTWAVES AROUND IT
WITH THE LATEST QUITE WEAK ONE MOVING THROUGH WESTERN CANADA. NOT
MUCH IMPACT ON WESTERN WA THOUGH MAINTAINING LOW LEVEL ONSHORE FLOW.
SUBSIDENCE BEHIND PLAYING KEY ROLE IS DECREASING THE STRATUS AND FOG
NEAR THE BEACHES. MARINE CLOUDINESS WED MORNING LIKELY TO BE QUITE
LIMITED COMPARED TO TUE MORNING AND SHORTLIVED AS A RESULT.

WITH MORE FULL SUNSHINE ON WED...MOST WESTERN WA LOCATIONS SHOULD BE
WARMER PARTICULARLY THOSE AREAS THAT MARINE CLOUDS TUE MORNING SUCH
AS THE COAST. A LOT OF CENTRAL PUGET SOUND SOUTH INTO THE SW
INTERIOR LOCATIONS WERE BETWEEN 85 AND 90 TUE...SOME MAY BE 90 OR A
BIT MORE WED. WITH HIGHER HEIGHTS YET ON THU...THAT MAY BE OUR
WARMEST DAY OF THE WEEK WITH MANY CENTRAL PUGET SOUND SOUTHWARD
LOCATIONS ABOVE 90. MORE 00Z GUIDANCE YET TO COME IN...YET IT
APPEARS THE MAX TEMP FORECASTS MAY NEED TO BE BUMPED UP A BIT.

PROGS GENERALLY AGREE THAT THE PATTERN IS EXPECTED TO RETROGRAD A
BIT WITH THE UPPER RIDGE AXIS MOVING TO AROUND 140W. SO NW FLOW
ALOFT TO DEVELOP LATE IN THE WEEK AND HOLIDAY WEEKEND AS THE GULF OF
ALASKA UPPER LOW TRACKS INTO CANADA...WITH HEIGHTS FALLING A BIT
OVER WA. SO SOME MODERATING TEMPS THOUGH STILL WELL ABOVE AVERAGE
LATER IN THE WEEK. BUEHNER

.LONG TERM...FROM PREVIOUS DISCUSSION...COMPARED TO THE ECMWF AND
CANADIAN MODELS...THE GFS IS SLOWER IN MOVING THE NORTHERN B.C. LOW
OFF TO THE EAST ON SUNDAY AND IN ADDITION BRINGS ANOTHER TROUGH DOWN
THE B.C. COAST ON MONDAY. THIS KEEPS W WA UNDER AN UPPER LEVEL
TROUGH...WITH A COOLER AIR MASS AND LOWER 500 MB HEIGHTS. THE ECMWF
AND CANADIAN MODELS ARE FASTER WITH THE DEPARTING CANADIAN LOW AND
ARE ABLE TO REBUILD THE UPPER LEVEL RIDGE MORE QUICKLY...RESULTING
IN WARMER TEMPERATURES OVER W WA. THE GFS LOOKS A LITTLE TOO STRONG
WITH THE TROUGH SO THE TEMPERATURE FORECAST IS CLOSER TO THE OTHER
MODELS AND THE STATUS QUO FOR LATE THIS WEEK. WEAK ONSHORE FLOW WILL
CONTINUE. KAM

&&

.CLIMATE...AFTER TODAYS SEATAC AIRPORT HIGH OF 87 AND LOW OF 59 AS
OF 5 PM...HERE ARE SOME - WOW - MONTH OF JUNE STATISTICS. THESE NEW
RECORDS WERE NOT EVEN CLOSE.

THE AVERAGE HIGH FOR JUNE WAS 78.9 DEGREES...WARMEST EVER. THE
PREVIOUS RECORD WAS 75.5 DEGREES IN 1992. THE AVERAGE LOW FOR THE
MONTH WAS 56.4 DEGREES...THE OLD RECORD WAS 55.7 DEGREES IN 2013.
AND FOR THE OVERALL AVERAGE MONTHLY TEMPERATURE...JUNE 2015 FINISHED
WITH A NEW ALL-TIME RECORD OF 68.0 DEGREES BREAKING THE OLD JUNE
MONTHLY RECORD SET IN 1969 OF 65.8 DEGREES - AGAIN NOT EVEN CLOSE.

TO PUT THIS WARM JUNE IN PERSPECTIVE...THE MONTH WOULD BE THE 12TH
WARMEST JULY ON RECORD AND THE 9TH WARMEST AUGUST ON RECORD.
SEATAC AIRPORT RECORDS BEGAN IN 1945.

NOT ONLY HAS IT BEEN WARM BUT ALSO QUITE DRY. JUNE 2015 FINISHED
WITH ONLY 0.23 INCHES OF RAIN MAKING IT THE 4TH DRIEST JUNE ON
RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL WAS 0.81 INCHES
- THE DRIEST ON RECORD. THE OLD RECORD WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS HAVE BEEN BROKEN ACROSS WESTERN WASHINGTON
THIS JUNE. THESE RECORDS WILL BE SUMMARIZED WED IN A PUBLIC
INFORMATION STATEMENT. FELTON/BUEHNER

$$

.AVIATION...WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON THIS EVENING
WILL CONTINUE TONIGHT AND WEDNESDAY...WITH A SMALL UPPER RIDGE
MOVING OVER THE REGION LATE WEDNESDAY. MODERATELY STRONG LOW LEVEL
FLOW THIS EVENING WILL GRADUALLY WEAKEN THROUGH WEDNESDAY. THE AIR
MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS DISSIPATED ALMOST ENTIRELY EVEN OVER THE COASTAL
WATERS THIS EVENING...LEAVING THE FORECAST AREA UNDER CLEAR SKIES.
STRATUS WILL PROBABLY FORM OVER THE COASTAL WATERS AGAIN TONIGHT...
BUT THERE IS LIKELY TO BE LITTLE IF ANY OVER THE WESTERN WASHINGTON
INTERIOR.

KSEA...NORTHERLY WIND 6-12 KT THROUGH WEDNESDAY. SKIES SHOULD REMAIN
GENERALLY CLEAR.   MCDONNAL

&&

.MARINE...MODERATELY STRONG ONSHORE FLOW IS PRODUCING GALE FORCE
WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST ENTRANCE
STRAIT THIS EVENING. IN ADDITION SMALL CRAFT ADVISORIES CONTINUE
TONIGHT FOR THE OUTER COASTAL WATERS AND ADMIRALTY INLET.

ONSHORE FLOW WILL WEAKEN SOMEWHAT ON WEDNESDAY AS THE PRESSURE
GRADIENT BECOMES NORTHWESTERLY...AND RELATIVELY LIGHT ONSHORE FLOW
WILL CONTINUE THURSDAY AND FRIDAY. A THERMALLY INDUCED TROUGH WILL
PROBABLY DEVELOP OVER WESTERN WASHINGTON THIS WEEKEND...WEAKENING
ONSHORE FLOW EVEN FURTHER.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING CENTRAL AND EASTERN STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY ADMIRALTY INLET AND THE OUTER COASTAL WATERS.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.





000
FXUS66 KSEW 010333
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 PM PDT TUE JUN 30 2015

.SYNOPSIS...HIGH PRESSURE ALOFT IS EXPECTED TO REMAIN OVER THE
PACIFIC NORTHWEST INTO EARLY NEXT WEEK FOR MORE QUITE WARM AND DRY
WEATHER.

&&

.SHORT TERM...UPPER HIGH OVER THE GREAT BASIN WITH 500 MB HEIGHTS
OVER WA IN THE 580S WITH WESTERLY FLOW ALOFT THIS EVENING. UPPER LOW
IN THE WESTERN GULF OF ALASKA CONTINUES TO SPIN SHORTWAVES AROUND IT
WITH THE LATEST QUITE WEAK ONE MOVING THROUGH WESTERN CANADA. NOT
MUCH IMPACT ON WESTERN WA THOUGH MAINTAINING LOW LEVEL ONSHORE FLOW.
SUBSIDENCE BEHIND PLAYING KEY ROLE IS DECREASING THE STRATUS AND FOG
NEAR THE BEACHES. MARINE CLOUDINESS WED MORNING LIKELY TO BE QUITE
LIMITED COMPARED TO TUE MORNING AND SHORTLIVED AS A RESULT.

WITH MORE FULL SUNSHINE ON WED...MOST WESTERN WA LOCATIONS SHOULD BE
WARMER PARTICULARLY THOSE AREAS THAT MARINE CLOUDS TUE MORNING SUCH
AS THE COAST. A LOT OF CENTRAL PUGET SOUND SOUTH INTO THE SW
INTERIOR LOCATIONS WERE BETWEEN 85 AND 90 TUE...SOME MAY BE 90 OR A
BIT MORE WED. WITH HIGHER HEIGHTS YET ON THU...THAT MAY BE OUR
WARMEST DAY OF THE WEEK WITH MANY CENTRAL PUGET SOUND SOUTHWARD
LOCATIONS ABOVE 90. MORE 00Z GUIDANCE YET TO COME IN...YET IT
APPEARS THE MAX TEMP FORECASTS MAY NEED TO BE BUMPED UP A BIT.

PROGS GENERALLY AGREE THAT THE PATTERN IS EXPECTED TO RETROGRAD A
BIT WITH THE UPPER RIDGE AXIS MOVING TO AROUND 140W. SO NW FLOW
ALOFT TO DEVELOP LATE IN THE WEEK AND HOLIDAY WEEKEND AS THE GULF OF
ALASKA UPPER LOW TRACKS INTO CANADA...WITH HEIGHTS FALLING A BIT
OVER WA. SO SOME MODERATING TEMPS THOUGH STILL WELL ABOVE AVERAGE
LATER IN THE WEEK. BUEHNER

.LONG TERM...FROM PREVIOUS DISCUSSION...COMPARED TO THE ECMWF AND
CANADIAN MODELS...THE GFS IS SLOWER IN MOVING THE NORTHERN B.C. LOW
OFF TO THE EAST ON SUNDAY AND IN ADDITION BRINGS ANOTHER TROUGH DOWN
THE B.C. COAST ON MONDAY. THIS KEEPS W WA UNDER AN UPPER LEVEL
TROUGH...WITH A COOLER AIR MASS AND LOWER 500 MB HEIGHTS. THE ECMWF
AND CANADIAN MODELS ARE FASTER WITH THE DEPARTING CANADIAN LOW AND
ARE ABLE TO REBUILD THE UPPER LEVEL RIDGE MORE QUICKLY...RESULTING
IN WARMER TEMPERATURES OVER W WA. THE GFS LOOKS A LITTLE TOO STRONG
WITH THE TROUGH SO THE TEMPERATURE FORECAST IS CLOSER TO THE OTHER
MODELS AND THE STATUS QUO FOR LATE THIS WEEK. WEAK ONSHORE FLOW WILL
CONTINUE. KAM

&&

.CLIMATE...AFTER TODAYS SEATAC AIRPORT HIGH OF 87 AND LOW OF 59 AS
OF 5 PM...HERE ARE SOME - WOW - MONTH OF JUNE STATISTICS. THESE NEW
RECORDS WERE NOT EVEN CLOSE.

THE AVERAGE HIGH FOR JUNE WAS 78.9 DEGREES...WARMEST EVER. THE
PREVIOUS RECORD WAS 75.5 DEGREES IN 1992. THE AVERAGE LOW FOR THE
MONTH WAS 56.4 DEGREES...THE OLD RECORD WAS 55.7 DEGREES IN 2013.
AND FOR THE OVERALL AVERAGE MONTHLY TEMPERATURE...JUNE 2015 FINISHED
WITH A NEW ALL-TIME RECORD OF 68.0 DEGREES BREAKING THE OLD JUNE
MONTHLY RECORD SET IN 1969 OF 65.8 DEGREES - AGAIN NOT EVEN CLOSE.

TO PUT THIS WARM JUNE IN PERSPECTIVE...THE MONTH WOULD BE THE 12TH
WARMEST JULY ON RECORD AND THE 9TH WARMEST AUGUST ON RECORD.
SEATAC AIRPORT RECORDS BEGAN IN 1945.

NOT ONLY HAS IT BEEN WARM BUT ALSO QUITE DRY. JUNE 2015 FINISHED
WITH ONLY 0.23 INCHES OF RAIN MAKING IT THE 4TH DRIEST JUNE ON
RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL WAS 0.81 INCHES
- THE DRIEST ON RECORD. THE OLD RECORD WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS HAVE BEEN BROKEN ACROSS WESTERN WASHINGTON
THIS JUNE. THESE RECORDS WILL BE SUMMARIZED WED IN A PUBLIC
INFORMATION STATEMENT. FELTON/BUEHNER

$$

.AVIATION...WESTERLY FLOW ALOFT OVER WESTERN WASHINGTON THIS EVENING
WILL CONTINUE TONIGHT AND WEDNESDAY...WITH A SMALL UPPER RIDGE
MOVING OVER THE REGION LATE WEDNESDAY. MODERATELY STRONG LOW LEVEL
FLOW THIS EVENING WILL GRADUALLY WEAKEN THROUGH WEDNESDAY. THE AIR
MASS WILL REMAIN DRY EXCEPT FOR A SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS DISSIPATED ALMOST ENTIRELY EVEN OVER THE COASTAL
WATERS THIS EVENING...LEAVING THE FORECAST AREA UNDER CLEAR SKIES.
STRATUS WILL PROBABLY FORM OVER THE COASTAL WATERS AGAIN TONIGHT...
BUT THERE IS LIKELY TO BE LITTLE IF ANY OVER THE WESTERN WASHINGTON
INTERIOR.

KSEA...NORTHERLY WIND 6-12 KT THROUGH WEDNESDAY. SKIES SHOULD REMAIN
GENERALLY CLEAR.   MCDONNAL

&&

.MARINE...MODERATELY STRONG ONSHORE FLOW IS PRODUCING GALE FORCE
WESTERLIES IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST ENTRANCE
STRAIT THIS EVENING. IN ADDITION SMALL CRAFT ADVISORIES CONTINUE
TONIGHT FOR THE OUTER COASTAL WATERS AND ADMIRALTY INLET.

ONSHORE FLOW WILL WEAKEN SOMEWHAT ON WEDNESDAY AS THE PRESSURE
GRADIENT BECOMES NORTHWESTERLY...AND RELATIVELY LIGHT ONSHORE FLOW
WILL CONTINUE THURSDAY AND FRIDAY. A THERMALLY INDUCED TROUGH WILL
PROBABLY DEVELOP OVER WESTERN WASHINGTON THIS WEEKEND...WEAKENING
ONSHORE FLOW EVEN FURTHER.   MCDONNAL

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING CENTRAL AND EASTERN STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY ADMIRALTY INLET AND THE OUTER COASTAL WATERS.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML - TEMPORARILY OUT OF
SERVICE BUT SHOULD RETURN BY THE END OF THIS WEEK.




000
FXUS66 KSEW 302225
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
325 PM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK...ALLOWING VERY WARM AND DRY WEATHER
TO CONTINUE.

&&

.SHORT TERM...STRATUS CLOUDS HAVE RETREATED BACK TO THE IMMEDIATE
COAST THIS AFTERNOON...BUT A ROUGHLY 40-60 MILE WIDE AREA OF STRATUS
EXTENDS OFFSHORE FROM THE COAST. THIS WILL BE A READY SUPPLY OF
MOISTURE TO ADVECT INLAND THIS EVENING. 2 PM PRESSURE GRADIENTS WERE
STILL WEAKLY ONSHORE WITH 1.4 MB HQM-SEA AND 1.5 MB UIL-BLI. ARW AND
NAM MODELS SHOW STRATUS MOVING PARTWAY INLAND UP THE LOWER CHEHALIS
VALLEY...PROBABLY NOT QUITE REACHING SHELTON WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
THURSDAY NIGHT...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL
PREVAIL OVER THE PACNW DURING THE PERIOD WITH A COUPLE OF WEAK UPPER
LEVEL SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. AFTER THE
WEAK UPPER LEVEL SHORTWAVE TROUGH OVER SOUTHERN B.C. MOVES E
TONIGHT...A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA
WEDNESDAY. THIS WILL ALLOW THE RIDGE TO REBUILD A BIT WITH 500 MB
HEIGHTS RISING TO AROUND 5880 METERS...ALLOWING WEDNESDAYS MAX TEMPS
TO REBOUND INTO THE UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A MORE SUBSTANTIAL BUT DRY UPPER LEVEL TROUGH...EXTENDING S FROM AN
UPPER LEVEL LOW OVER NORTHERN B.C...WILL BRUSH W WA FRIDAY THROUGH
EARLY SATURDAY. THE GFS IS THE STRONGEST MODEL COMPARED TO THE ECWMF
AND CANADIAN...AND LOWERS 500 MB HEIGHTS DOWN TO ABOUT 5790 METERS
COMPARED TO 5820 TO 5850 METERS ON THE OTHER TWO MODELS. THIS WOULD
TRANSLATE TO A BIT MORE AIR MASS COOLING AND A NEW BATCH OF STRATUS
REACHING THE COAST. THE MAX TEMP FORECAST IS A COMPROMISE BETWEEN
THE ECMWF AND GFS WITH HIGHS IN THE 80S.

THROUGH THE ENTIRE PERIOD A SURFACE HIGH ABOUT 600 NM OFFSHORE WILL
MAINTAIN WEAK TO MODERATE LOW LEVEL ONSHORE FLOW OVER W WA. THIS
WILL PRODUCE LATE NIGHT AND MORNING STRATUS ALONG THE COAST AND OVER
THE ADJACENT LOWER CHEHALIS VALLEY. WITH ONSHORE PRESSURE GRADIENTS
FROM A W-NW DIRECTION IT WILL BE HARDER FOR STRATUS TO PUSH E OVER
PUGET SOUND. KAM

.LONG TERM...COMPARED TO THE ECMWF AND CANADIAN MODELS...THE GFS IS
SLOWER IN MOVING THE NORTHERN B.C. LOW OFF TO THE EAST ON SUNDAY AND
IN ADDITION BRINGS ANOTHER TROUGH DOWN THE B.C. COAST ON MONDAY.
THIS KEEPS W WA UNDER AN UPPER LEVEL TROUGH...WITH A COOLER AIR MASS
AND LOWER 500 MB HEIGHTS. THE ECMWF AND CANADIAN MODELS ARE FASTER
WITH THE DEPARTING CANADIAN LOW AND ARE ABLE TO REBUILD THE UPPER
LEVEL RIDGE MORE QUICKLY...RESULTING IN WARMER TEMPERATURES OVER W
WA. THE GFS LOOKS A LITTLE TOO STRONG WITH THE TROUGH SO THE
TEMPERATURE FORECAST IS CLOSER TO THE OTHER MODELS AND THE STATUS
QUO FOR LATE THIS WEEK. WEAK ONSHORE FLOW WILL CONTINUE. KAM

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...A WEAK UPPER TROUGH MOVING THROUGH SOUTHERN BRITISH
COLUMBIA WILL BRUSH WASHINGTON THIS EVENING. HIGH PRESSURE ALOFT
WILL STRENGTHEN LATER TONIGHT AND WEDNESDAY. LIGHT WESTERLY FLOW
ALOFT. LOW LEVEL ONSHORE FLOW WILL INCREASE LATE TODAY AND CONTINUE
TONIGHT. THE AIR MASS IS MAINLY DRY EXCEPT FOR MOISTURE IN THE
SHALLOW SURFACE-BASED MARINE LAYER. IFR STRATUS TONIGHT WILL LIKELY
STAY CONFINED TO THE COAST AND STRAIT OF JUAN DE FUCA AFFECTING
MAINLY THE KHQM TERMINAL. PATCHY LOW CLOUDS COULD ALSO FORM IN PLACE
ACROSS THE INTERIOR BUT IS UNLIKELY AT THE TERMINALS.

KSEA...STRATUS ALONG THE COAST MAY PARTIALLY INTRUDE INTO THE WRN
PORTION OF THE SW INTERIOR BUT IS NOT EXPECTED TO REACH THE
TERMINAL. NW WIND 5-8 KT THROUGH 04Z...THEN N-NE TONIGHT. DTM

&&

.MARINE...ONSHORE FLOW WILL INCREASE THIS EVENING AS A SYSTEM
BRUSHES THE PACIFIC NORTHWEST. GALE FORCE WESTERLIES ARE
POSSIBLE TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE
LIKELY OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET TONIGHT.

VARIABLE DEGREES OF ONSHORE FLOW ARE LIKELY THE NEXT FEW DAYS OVER
THE COASTAL WATERS AND IN THE STRAIT. PERIODS OF SMALL CRAFT
STRENGTH WINDS ARE POSSIBLE...ESPECIALLY DURING THE EVENINGS IN THE
CENTRAL/E STRAIT OF JUAN DE FUCA. WINDS WILL BE LIGHTER AND MORE NLY
OVER THE INLAND WATERS THROUGH THE WEEK. DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING CENTRAL AND EASTERN STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY ADMIRALTY INLET AND THE OUTER COASTAL WATERS.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KSEW 302225
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
325 PM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST INTO EARLY NEXT WEEK...ALLOWING VERY WARM AND DRY WEATHER
TO CONTINUE.

&&

.SHORT TERM...STRATUS CLOUDS HAVE RETREATED BACK TO THE IMMEDIATE
COAST THIS AFTERNOON...BUT A ROUGHLY 40-60 MILE WIDE AREA OF STRATUS
EXTENDS OFFSHORE FROM THE COAST. THIS WILL BE A READY SUPPLY OF
MOISTURE TO ADVECT INLAND THIS EVENING. 2 PM PRESSURE GRADIENTS WERE
STILL WEAKLY ONSHORE WITH 1.4 MB HQM-SEA AND 1.5 MB UIL-BLI. ARW AND
NAM MODELS SHOW STRATUS MOVING PARTWAY INLAND UP THE LOWER CHEHALIS
VALLEY...PROBABLY NOT QUITE REACHING SHELTON WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
THURSDAY NIGHT...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL
PREVAIL OVER THE PACNW DURING THE PERIOD WITH A COUPLE OF WEAK UPPER
LEVEL SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. AFTER THE
WEAK UPPER LEVEL SHORTWAVE TROUGH OVER SOUTHERN B.C. MOVES E
TONIGHT...A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA
WEDNESDAY. THIS WILL ALLOW THE RIDGE TO REBUILD A BIT WITH 500 MB
HEIGHTS RISING TO AROUND 5880 METERS...ALLOWING WEDNESDAYS MAX TEMPS
TO REBOUND INTO THE UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A MORE SUBSTANTIAL BUT DRY UPPER LEVEL TROUGH...EXTENDING S FROM AN
UPPER LEVEL LOW OVER NORTHERN B.C...WILL BRUSH W WA FRIDAY THROUGH
EARLY SATURDAY. THE GFS IS THE STRONGEST MODEL COMPARED TO THE ECWMF
AND CANADIAN...AND LOWERS 500 MB HEIGHTS DOWN TO ABOUT 5790 METERS
COMPARED TO 5820 TO 5850 METERS ON THE OTHER TWO MODELS. THIS WOULD
TRANSLATE TO A BIT MORE AIR MASS COOLING AND A NEW BATCH OF STRATUS
REACHING THE COAST. THE MAX TEMP FORECAST IS A COMPROMISE BETWEEN
THE ECMWF AND GFS WITH HIGHS IN THE 80S.

THROUGH THE ENTIRE PERIOD A SURFACE HIGH ABOUT 600 NM OFFSHORE WILL
MAINTAIN WEAK TO MODERATE LOW LEVEL ONSHORE FLOW OVER W WA. THIS
WILL PRODUCE LATE NIGHT AND MORNING STRATUS ALONG THE COAST AND OVER
THE ADJACENT LOWER CHEHALIS VALLEY. WITH ONSHORE PRESSURE GRADIENTS
FROM A W-NW DIRECTION IT WILL BE HARDER FOR STRATUS TO PUSH E OVER
PUGET SOUND. KAM

.LONG TERM...COMPARED TO THE ECMWF AND CANADIAN MODELS...THE GFS IS
SLOWER IN MOVING THE NORTHERN B.C. LOW OFF TO THE EAST ON SUNDAY AND
IN ADDITION BRINGS ANOTHER TROUGH DOWN THE B.C. COAST ON MONDAY.
THIS KEEPS W WA UNDER AN UPPER LEVEL TROUGH...WITH A COOLER AIR MASS
AND LOWER 500 MB HEIGHTS. THE ECMWF AND CANADIAN MODELS ARE FASTER
WITH THE DEPARTING CANADIAN LOW AND ARE ABLE TO REBUILD THE UPPER
LEVEL RIDGE MORE QUICKLY...RESULTING IN WARMER TEMPERATURES OVER W
WA. THE GFS LOOKS A LITTLE TOO STRONG WITH THE TROUGH SO THE
TEMPERATURE FORECAST IS CLOSER TO THE OTHER MODELS AND THE STATUS
QUO FOR LATE THIS WEEK. WEAK ONSHORE FLOW WILL CONTINUE. KAM

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...A WEAK UPPER TROUGH MOVING THROUGH SOUTHERN BRITISH
COLUMBIA WILL BRUSH WASHINGTON THIS EVENING. HIGH PRESSURE ALOFT
WILL STRENGTHEN LATER TONIGHT AND WEDNESDAY. LIGHT WESTERLY FLOW
ALOFT. LOW LEVEL ONSHORE FLOW WILL INCREASE LATE TODAY AND CONTINUE
TONIGHT. THE AIR MASS IS MAINLY DRY EXCEPT FOR MOISTURE IN THE
SHALLOW SURFACE-BASED MARINE LAYER. IFR STRATUS TONIGHT WILL LIKELY
STAY CONFINED TO THE COAST AND STRAIT OF JUAN DE FUCA AFFECTING
MAINLY THE KHQM TERMINAL. PATCHY LOW CLOUDS COULD ALSO FORM IN PLACE
ACROSS THE INTERIOR BUT IS UNLIKELY AT THE TERMINALS.

KSEA...STRATUS ALONG THE COAST MAY PARTIALLY INTRUDE INTO THE WRN
PORTION OF THE SW INTERIOR BUT IS NOT EXPECTED TO REACH THE
TERMINAL. NW WIND 5-8 KT THROUGH 04Z...THEN N-NE TONIGHT. DTM

&&

.MARINE...ONSHORE FLOW WILL INCREASE THIS EVENING AS A SYSTEM
BRUSHES THE PACIFIC NORTHWEST. GALE FORCE WESTERLIES ARE
POSSIBLE TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE
LIKELY OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET TONIGHT.

VARIABLE DEGREES OF ONSHORE FLOW ARE LIKELY THE NEXT FEW DAYS OVER
THE COASTAL WATERS AND IN THE STRAIT. PERIODS OF SMALL CRAFT
STRENGTH WINDS ARE POSSIBLE...ESPECIALLY DURING THE EVENINGS IN THE
CENTRAL/E STRAIT OF JUAN DE FUCA. WINDS WILL BE LIGHTER AND MORE NLY
OVER THE INLAND WATERS THROUGH THE WEEK. DTM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING CENTRAL AND EASTERN STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY ADMIRALTY INLET AND THE OUTER COASTAL WATERS.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 301659 CCA
AFDSEW

AREA FORECAST DISCUSSION...RETRANSMISSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY...ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 301659 CCA
AFDSEW

AREA FORECAST DISCUSSION...RETRANSMISSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY...ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KSEW 301644
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KSEW 301644
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 301644
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 301644
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
944 AM PDT TUE JUN 30 2015

.SYNOPSIS...A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY ALLOWING VERY WARM AND DRY WEATHER TO
CONTINUE. A WEAK DRY UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION
THIS WEEKEND WITH LITTLE CHANGE IN THE WEATHER.

&&

.SHORT TERM...ONSHORE FLOW OVERNIGHT SPREAD LOW LEVEL STRATUS ACROSS
THE SW INTERIOR...CENTRAL PUGET SOUND AND THE STRAIT OF JUAN DE FUCA
THIS MORNING. AS USUAL THE STRATUS IS EXPECTED TO BURN OFF BY
MIDDAY. ONSHORE FLOW WILL INCREASE AGAIN TONIGHT BUT MODELS INDICATE
IT WILL WEAKEN RAPIDLY SO THAT THERE WILL BE MUCH LESS STRATUS
FORMING OVER THE INTERIOR WEDNESDAY MORNING.

A BROAD UPPER LEVEL RIDGE WILL REMAIN OVER THE WESTERN U.S. THROUGH
FRIDAY...CENTERED OVER THE SW U.S.  W FLOW ALOFT WILL PREVAIL OVER
THE PACNW DURING THE PERIOD WITH A SERIES OF WEAK UPPER LEVEL
SHORTWAVES EMBEDDED IN THE FLOW TRAVERSING THE AREA. THE WEAK
SHORTWAVE TROUGH MOVING ASHORE OVER THE CENTRAL B.C. COAST THIS
MORNING WILL SUPPRESS THE BROAD RIDGE SLIGHTLY WITH 500 MB HEIGHTS
OVER W WA LOWERING TO AROUND 5850 METERS THIS AFTERNOON. THE MAIN
IMPACT WILL BE TO CAUSE SOME SLIGHT GENERAL AIR MASS COOLING WHICH
WILL KEEP HIGHS IN THE MID 70S TO MID 80S TODAY.

A WEAK UPPER LEVEL SHORTWAVE RIDGE WILL CROSS THE AREA WEDNESDAY
ALLOWING THE RIDGE TO REBUILD A BIT WITH 500 MB HEIGHTS RISING TO
AROUND 5880 METERS. THIS SHOULD ALLOW MAX TEMPS TO REBOUND INTO THE
UPPER 70S AND 80S.

ANOTHER WEAKER UPPER LEVEL SHORTWAVE TROUGH WILL FOLLOW ON
THURSDAY...CROSSING W WA AROUND 12Z. THIS ONE WILL HAVE EVEN LESS
IMPACT AS MAX TEMPS ARE EXPECTED TO WARM ANOTHER DEGREE OR SO.

A SURFACE RIDGE CENTERED ABOUT 600 NM OFFSHORE WILL MAINTAIN WEAK
LOW LEVEL ONSHORE FLOW OVER W WA THROUGH FRIDAY. THE PASSING UPPER
LEVEL SHORTWAVES WILL WEAKLY MODULATE THE STRENGTH OF THE ONSHORE
FLOW. COASTAL TEMPERATURES WILL BE MODERATED BY THE ONSHORE FLOW BUT
THE COOLING EFFECTS WILL BE MUCH LESS OVER THE INTERIOR. IT DOES NOT
LOOK LIKE THERE WILL BE MUCH STRATUS INLAND THE NEXT COUPLE OF DAYS.
KAM

.LONG TERM...PREVIOUS DISCUSSION FROM THE 400 AM AFD...EXTENDED
MODELS STILL IN GOOD GENERAL AGREEMENT KEEPING THE UPPER LEVEL RIDGE
OVER WESTERN WASHINGTON THROUGH THE PERIOD. THE GFS IS A LITTLE MORE
AGGRESSIVE WITH THE SHORTWAVES MOVING OVER THE TOP OF THE RIDGE OVER
THE WEEKEND BUT EVEN WITH THIS 500 MB HEIGHTS ON THE GFS DO NOT DROP
BELOW THE LOWER 580 DMS. SOME SMALL DIFFERENCES IN THE SURFACE
PATTERN IN THE MODELS COME SUNDAY WITH THE ECMWF FINALLY TURNING THE
LOW LEVEL FLOW OFFSHORE WHILE THE GFS KEEPS THE LOW LEVEL FLOW FLAT.
CURRENT FORECAST FOLLOWS THE SLIGHTLY COOLER GFS SOLUTION WHICH
STAYS WITH THE IDEA OF HIGHS MOSTLY IN THE 80S OVER THE INTERIOR AND
70S ALONG THE COAST THROUGH THE WEEKEND. IF THE ECMWF VERIFIES
FORECAST MAX TEMPS WILL BE AROUND 5 DEGREES TOO COOL ON SUNDAY WITH
LOWER 90S COMMON FROM SEATTLE SOUTHWARD. DIFFERENCES IN THE MODELS
CONTINUE ON MONDAY WITH THE ECMWF HAVING A MUCH HIGHER AMPLITUDE
RIDGE OVER THE AREA AND GFS SHOWING MORE LOW LEVEL ONSHORE FLOW. THE
FORECAST FOR MONDAY IS A COMPROMISE OF THE TWO SOLUTIONS. WITH THE
DIFFERENCES IN THE MODELS WILL LEAVE THE MONDAY FORECAST ALONE.
FELTON

&&

.CLIMATE...WITH ONLY ONE DAY LEFT IN THE MONTH SEATTLE WILL END UP
WITH THE WARMEST JUNE ON RECORD. THROUGH THE 29TH THE AVERAGE HIGH
FOR THE MONTH IS 78.6 DEGREES. THE OLD RECORD FOR THE MONTH WAS 75.8
DEGREES IN 1992. WITH THE WARM LOW TEMPERATURES THE LAST FEW DAYS
SEATTLE IS NOW ON PACE TO BREAK THE RECORD FOR THE WARMEST AVERAGE
LOW TEMPERATURE FOR THE MONTH OF JUNE. THROUGH THE 29TH THE AVERAGE
LOW FOR THE MONTH HAS BEEN 56.3 DEGREES. THE RECORD WAS 55.7 DEGREES
SET IN 2013. THE AVERAGE TEMPERATURE FOR THE MONTH THROUGH THE 29TH
IS 67.5 DEGREES. THE OLD RECORD WAS 64.9 DEGREES SET IN 1992.

TO PUT THIS RECORD WARM JUNE IN PERSPECTIVE...THE CURRENT AVERAGE
MAX TEMPERATURE OF 78.6 DEGREES WOULD BE THE 12TH WARMEST JULY ON
RECORD AND THE 9TH WARMEST AUGUST ON RECORD. RECORDS STARTED AT SEA-
TAC IN 1945.

IN ADDITION TO THE WARM WEATHER IT HAS ALSO BEEN A VERY DRY JUNE
WITH ONLY 0.23 INCHES OF RAIN AT SEA-TAC. THIS WILL BE THE 4TH
DRIEST JUNE ON RECORD. THE MAY 1ST THROUGH JUNE 30TH RAINFALL TOTAL
IS 0.81 INCHES. THIS WILL BE THE DRIEST ON RECORD. THE OLD RECORD
WAS 1.26 INCHES IN 1992.

NUMEROUS OTHER RECORDS WILL BE BROKEN ACROSS THE AREA THIS MONTH.
THE RECORDS WILL BE SUMMARIZED TOMORROW IN A PUBLIC INFORMATION
STATEMENT. FELTON

$$

.AVIATION...HIGH PRESSURE WILL WEAKEN TODAY AS A TROUGH PASSES NORTH
OF WESTERN WASHINGTON. THE RIDGE WILL STRENGTHEN TONIGHT AND
WEDNESDAY. LIGHT WESTERLY FLOW ALOFT. LOW LEVEL ONSHORE FLOW WILL
INCREASE LATE TODAY AND CONTINUE TONIGHT. THE AIR MASS IS MAINLY DRY
EXCEPT FOR MOISTURE IN THE SHALLOW SURFACE-BASED MARINE LAYER.

MARINE STRATUS WITH BASES NEAR 400-500 FEET COVERS MUCH OF THE
WESTERN WASHINGTON LOWLANDS. THIS SHOULD BURN BACK TO THE COASTAL
WATERS THIS AFTERNOON. THERE WILL PROBABLY BE LESS STRATUS TONIGHT
AND WEDNESDAY MORNING.

KSEA...STRATUS WITH CIGS BELOW 500 FT AND SURFACE VIS DOWN TO 1/2SM
AT TIMES THROUGH 17Z. AFTER 17Z....CIGS SHOULD START TO RISE AND
SCATTER OUT BY 18Z. SOUTH TO SOUTHWEST WIND 3-6 KT THIS
MORNING...GRADUALLY SHIFTING TO THE NORTHWEST LATE THIS
AFTERNOON...THEN NORTH TO NORTHEAST TONIGHT.

&&

.MARINE...HIGH PRESSURE WELL OFFSHORE AND THERMALLY INDUCED LOW
PRESSURE EAST OF THE CASCADES WILL MAINTAIN ONSHORE FLOW TODAY. IT
SHOULD INCREASE LATE TODAY IN RESPONSE TO A WEAK UPPER LEVEL SYSTEM
MOVING THROUGH...AND GALE FORCE WESTERLIES ARE LIKELY LATE THIS
AFTERNOON AND TONIGHT IN THE CENTRAL STRAIT OF JUAN DE FUCA AND EAST
ENTRANCE STRAIT. IN ADDITION SMALL CRAFT ADVISORY WINDS ARE LIKELY
OVER THE OUTER COASTAL WATERS AND IN ADMIRALTY INLET.

ONSHORE FLOW WILL PROBABLY EASE SOMEWHAT ON WEDNESDAY AND STRENGTHEN
AGAIN THURSDAY. THEN IT SHOULD EASE AGAIN FRIDAY AND SATURDAY AS
THERMALLY INDUCED LOW PRESSURE DEVELOPS OVER WESTERN WASHINGTON.
MCDONNAL/MERCER

&&

.SEW WATCHES/WARNINGS/ADVISORIES...

WA...NONE.
PZ...GALE WARNING LATE THIS AFTERNOON THROUGH LATE TONIGHT CENTRAL
      AND EAST STRAIT OF JUAN DE FUCA.
     SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT OF JUAN DE FUCA
      THROUGH THIS AFTERNOON.
     SMALL CRAFT ADVISORY THIS EVENING ADMIRALTY INLET.
     SMALL CRAFT ADVISORY NOON TODAY THROUGH WEDNESDAY MORNING OUTER
      COASTAL WATERS.
&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





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