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000
FXUS66 KEKA 271129
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
429 AM PDT WED MAY 27 2015

.SYNOPSIS...DRY AND WARMER WEATHER WILL PREVAIL ACROSS THE
INTERIOR THROUGH THE WEEK. COASTAL AREAS WILL CONTINUE TO SEE
NIGHT AND MORNING LOW CLOUDS WITH PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...AN UPPER LOW OVER EASTERN WASHINGTON AND IDAHO WILL
SLOWLY TRACK EASTWARD TODAY AS AN UPPER RIDGE NEAR 130W BUILDS
CLOSER TO THE CALIFORNIA COAST. THERE WILL BE MUCH LESS
INSTABILITY OVER THE INTERIOR TODAY. THE NAM12 CONTINUES TO
INDICATE WEAK CAPE AND INSTABILITY OVER THE HORN OF TRINITY AND
YOLLA BOLLYS THIS AFTERNOON FOR THE POSSIBLITY OF ISOLATED
SHOWERS. THE SOUNDINGS CONTINUE TO SHOW TOO MUCH MID LAYER
STABILITY FOR SIGNIFICANT CUMULUS CONVECTION TODAY. NAM12 AND GFS
CONTINUE TO SHOW HIGHER CAPE VALUES AND DECREASING STABILITY ON
THU AND FRI. BOTH MODELS GENERATE SPOTTY PRECIP OVER THE
MOUNTAINS. ONCE AGAIN CONDITIONS WILL BE TOO STABE FOR TSTMS. A
FEW SHOWERS CERTAINLY SEEM POSSIBLE. OVERALL DRY AND WARMER
WEATHER CONDITIONS WILL CONTINUE TO BE THE RULE FOR MOST OF THE
AREA MOST OF THE TIME THROUGH SAT AS A BROAD FLAT RIDGE HOLDS OVER
THE AREA. THE STRATUS FORECAST WILL BE BASED LARGELY ON
PERSISTENCE. WARMING ALOFT OVER THE NEXT FEW DAYS MAY SMASH THE
MARINE LAYER DEPTH AND ALLOW FASTER CLEARING TO THE COASTLINE IN
THE AFTERNOON. HOWEVER THE FLOW WILL REMAIN STRONGLY ONSHORE AND
ANY CLEARING WILL BE BRIEF.

BOTH THE GFS AND ECMWF HAVE BEEN CONSISTENT ON BRINGING AN UPPER
TROUGH TOWARD THE COAST SUN INTO MON. BOTH MODELS GENERATE SOME
PRECIP AS WELL. PRECIP CHANCES HAVE BEEN BEEFED UP ACROSS THE
BOARD. RAIN CHANCES MAY NEED TO BE INCREASED MORE IF THE MODELS
REMAIN CONSISTENT. IT DOES NOT LOOK LIKE A RAIN OUT ON SUN OR
MON. SOME SHOWERS WILL BE POSSIBLE...HOWEVER THE TIMING AND
COVERAGE ARE STILL VERY UNCERTAIN.

&&

.AVIATION...MORNING PICS FROM SPACE SHOWING ANOTHER DEEP MARINE
LAYER THUS NOT ANTICIPATING MUCH CLEARING AGAIN TODAY. ALTHOUGH
CIGS SHOULD LIFT INTO MARGINAL VFR LATER THIS AFTERNOON. INTERIOR
VALLEYS LOOKING BETTER IN TERMS OF A LACK OF MORNING CLOUDS AND
ANY CLOUDS THAT DO DEVELOP WILL LIKELY DISSIPATE BY MID MORNING
LEAVING VFR FOR THE REMAINDER OF THE TAF CYCLE.

&&

.MARINE...NORTHERLY WINDS WILL CONTINUE THROUGH THE WEEK AS A
RIDGE OF HIGH PRESSURE REMAINS STATIONED JUST OFFSHORE. SMALL
CRAFT ADVISORIES WERE EXTENDED LAST NIGHT OVER THE OUTER WATERS
MAINLY DUE TO RESIDUAL SHORT PERIOD WAVES. STEEP SEAS WILL PERSIST
IN RESPONSE TO THE FRESH WINDS. OTHERWISE A SOUTH, SOUTHWEST WAVE
GROUP WILL IMPACT THE WATERS AS A LOW PRESSURE SYSTEM APPROACHES
CALIFORNIA AND A NORTHWEST SWELL WILL DIMINISH THROUGH THE WEEK.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PDT THURSDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
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000
FXUS66 KEKA 271129
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
429 AM PDT WED MAY 27 2015

.SYNOPSIS...DRY AND WARMER WEATHER WILL PREVAIL ACROSS THE
INTERIOR THROUGH THE WEEK. COASTAL AREAS WILL CONTINUE TO SEE
NIGHT AND MORNING LOW CLOUDS WITH PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...AN UPPER LOW OVER EASTERN WASHINGTON AND IDAHO WILL
SLOWLY TRACK EASTWARD TODAY AS AN UPPER RIDGE NEAR 130W BUILDS
CLOSER TO THE CALIFORNIA COAST. THERE WILL BE MUCH LESS
INSTABILITY OVER THE INTERIOR TODAY. THE NAM12 CONTINUES TO
INDICATE WEAK CAPE AND INSTABILITY OVER THE HORN OF TRINITY AND
YOLLA BOLLYS THIS AFTERNOON FOR THE POSSIBLITY OF ISOLATED
SHOWERS. THE SOUNDINGS CONTINUE TO SHOW TOO MUCH MID LAYER
STABILITY FOR SIGNIFICANT CUMULUS CONVECTION TODAY. NAM12 AND GFS
CONTINUE TO SHOW HIGHER CAPE VALUES AND DECREASING STABILITY ON
THU AND FRI. BOTH MODELS GENERATE SPOTTY PRECIP OVER THE
MOUNTAINS. ONCE AGAIN CONDITIONS WILL BE TOO STABE FOR TSTMS. A
FEW SHOWERS CERTAINLY SEEM POSSIBLE. OVERALL DRY AND WARMER
WEATHER CONDITIONS WILL CONTINUE TO BE THE RULE FOR MOST OF THE
AREA MOST OF THE TIME THROUGH SAT AS A BROAD FLAT RIDGE HOLDS OVER
THE AREA. THE STRATUS FORECAST WILL BE BASED LARGELY ON
PERSISTENCE. WARMING ALOFT OVER THE NEXT FEW DAYS MAY SMASH THE
MARINE LAYER DEPTH AND ALLOW FASTER CLEARING TO THE COASTLINE IN
THE AFTERNOON. HOWEVER THE FLOW WILL REMAIN STRONGLY ONSHORE AND
ANY CLEARING WILL BE BRIEF.

BOTH THE GFS AND ECMWF HAVE BEEN CONSISTENT ON BRINGING AN UPPER
TROUGH TOWARD THE COAST SUN INTO MON. BOTH MODELS GENERATE SOME
PRECIP AS WELL. PRECIP CHANCES HAVE BEEN BEEFED UP ACROSS THE
BOARD. RAIN CHANCES MAY NEED TO BE INCREASED MORE IF THE MODELS
REMAIN CONSISTENT. IT DOES NOT LOOK LIKE A RAIN OUT ON SUN OR
MON. SOME SHOWERS WILL BE POSSIBLE...HOWEVER THE TIMING AND
COVERAGE ARE STILL VERY UNCERTAIN.

&&

.AVIATION...MORNING PICS FROM SPACE SHOWING ANOTHER DEEP MARINE
LAYER THUS NOT ANTICIPATING MUCH CLEARING AGAIN TODAY. ALTHOUGH
CIGS SHOULD LIFT INTO MARGINAL VFR LATER THIS AFTERNOON. INTERIOR
VALLEYS LOOKING BETTER IN TERMS OF A LACK OF MORNING CLOUDS AND
ANY CLOUDS THAT DO DEVELOP WILL LIKELY DISSIPATE BY MID MORNING
LEAVING VFR FOR THE REMAINDER OF THE TAF CYCLE.

&&

.MARINE...NORTHERLY WINDS WILL CONTINUE THROUGH THE WEEK AS A
RIDGE OF HIGH PRESSURE REMAINS STATIONED JUST OFFSHORE. SMALL
CRAFT ADVISORIES WERE EXTENDED LAST NIGHT OVER THE OUTER WATERS
MAINLY DUE TO RESIDUAL SHORT PERIOD WAVES. STEEP SEAS WILL PERSIST
IN RESPONSE TO THE FRESH WINDS. OTHERWISE A SOUTH, SOUTHWEST WAVE
GROUP WILL IMPACT THE WATERS AS A LOW PRESSURE SYSTEM APPROACHES
CALIFORNIA AND A NORTHWEST SWELL WILL DIMINISH THROUGH THE WEEK.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PDT THURSDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 262229
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
329 PM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS THROUGH THIS EVENING.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.SHORT TERM...(THROUGH FRIDAY) AN UPPER LEVEL SHORTWAVE IS ADVANCING
TOWARD NORTHWEST CALIFORNIA AND MAY TRIGGER SOME AFTERNOON/EVENING
STORMS OVER TRINITY COUNTY TODAY. MODEL SOUNDINGS ARE VERY SIMILAR
TO YESTERDAY SO IT WOULD NOT BE A SURPRISE THAT A STRONG OR SEVERE
STORM FORMS. HOWEVER THE SHORTWAVE TODAY IS NOT AS STRONG...WILL
MOVE INTO THE AREA MORE IN THE EVENING THAN AFTERNOON HOURS...AND
HAS A MORE NORTHERLY TRAJECTORY. THUS EVEN THOUGH THE MODEL
SOUNDINGS ARE SIMILAR THERE IS STILL CONSIDERABLE UNCERTAINTY AS TO
HOW MANY SHOWERS/STORMS FORM TODAY. AS THE AFTERNOON HEAT WANES THIS
EVENING INSTABILITY WILL DECREASE AND ANY SHOWERS/STORMS THAT DO
FORM WILL DISSIPATE FOR THE OVERNIGHT HOURS.

COASTAL STRATUS HAS REMAINED PERSISTENT THOUGH SOME BETTER MIXING
HAS ALLOWED THE DEL NORTE COAST TO PARTIALLY CLEAR OUT. THERE IS
POTENTIAL FOR A BRIEF PERIOD OF SUNSHINE EVEN IN THE HUMBOLDT BAY
AREA BEFORE THE CLOUDS EXPAND AGAIN ALONG THE COAST AND SPREAD
INLAND OVERNIGHT. WITH AN UPPER LEVEL RIDGE BEGINNING TO MOVE OVER
THE WEST COAST THE MARINE LAYER SHOULD COMPACT SOME TONIGHT WITH THE
POTENTIAL FOR MORE FOG ALONG THE COAST. A REPEAT ON TUESDAY IS
ANTICIPATED ON WEDNESDAY FOLLOWED BY EVEN A HIGHER LIKELIHOOD OF FOG
WEDNESDAY NIGHT INTO THURSDAY.

AS THE RIDGE BUILDS OVERHEAD ON WEDNESDAY A WARM LAYER WILL MOVE
OVERHEAD RESULTING IN A DECENT CAPPING INVERSION ACROSS THE REGION.
THUS VERY LITTLE IF ANY CONVECTIVE DEVELOPMENT IS ANTICIPATED
WEDNESDAY AFTERNOON AND EVENING. OPTED TO REMOVE THE SHOWER AND
THUNDERSTORM CHANCES FROM THE FORECAST WITH THIS UPDATE FOR
WEDNESDAY.

AN UPPER LEVEL SHORTWAVE ON THE EAST SIDE OF A CUT OFF UPPER LEVEL
LOW OFF THE CALIFORNIA COAST WILL MOVE TOWARD NORTHWEST CALIFORNIA
ON THURSDAY. THIS SHORTWAVE MAY POSSIBLY RESULT IN SOME COOLER AIR
ALOFT AND A TRIGGER TO OVERCOME THE LOW LEVEL INVERSION THURSDAY
AFTERNOON IN THE TRINITY COUNTY MOUNTAINS. THUS SLIGHT CHANCES FOR
THUNDERSTORMS HAVE BEEN MAINTAINED FOR THURSDAY AFTERNOON AND A
REPEAT MAY OCCUR FRIDAY AFTERNOON. /RPA

.LONG TERM (SATURDAY THRU MONDAY)...THE BROAD BRUSH UPPER LEVEL FLOW
IS FORECAST TO HAVE AN AMPLIFIED RIDGE STATIONED OVER THE WEST COAST
BRINGING ABOVE NORMAL TEMPERATURES TO INTERIOR AREAS THIS WEEKEND. A
SHORTWAVE TROUGH WILL SLIDE UNDER THE LONGWAVE RIDGE BRINGING AN
INFLUX OF MOISTURE TO THE REGION AND SOME SHOWER ACTIVITY FOR FAR
EASTERN DEL NORTE, TRINITY, AND NE MENDOCINO COUNTIES. WE`RE STILL
ANALYZING THE POTENTIAL THREAT FOR AFTERNOON THUNDERSTORMS THIS
WEEKEND AS THE APPROACHING SHORTWAVE TROUGH INCREASES MOISTURE OVER
NORTHWEST CALIFORNIA. ADDITIONALLY, LOW LEVEL INSTABILITY AND CAPE
VALUES LOOK FAVORABLE FOR STORM DEVELOPMENT ESPECIALLY IN TRINITY
COUNTY. HOWEVER, STORMS DO NOT TYPICALLY DEVELOP UNDER A SW FLOW
REGIME AND A WEAK CAP IS FORECAST TO DEVELOP WHICH SHOULD DISCOURAGE
THE DEVELOPMENT OF DEEP CONVECTION. FOR NOW, HAVE LEFT THUNDERSTORMS
OUT OF THE LONG TERM FORECAST. MOVING INTO EARLY NEXT WEEK
TEMPERATURES SHOULD RETURN TO NEAR NORMAL AS THE UPPER RIDGE
FLATTENS OUT AND THE FLOW BECOMES MORE ZONAL. /KML


&&

.AVIATION...STRATUS ALONG THE COAST HAS REMAINED PERSISTENT
...PARTICULARLY ON THE MENDOCINO COAST. SOME MIXING HAS OCCURRED
NORTH OF THE CAPE AND MAY BRING A PERIOD OF VFR TO CEC AND ACV
BEFORE THE STRATUS EXPANDS AGAIN AND MOVES INLAND THIS
EVENING/OVERNIGHT. CLOUDS MAY REACH UKI ONCE AGAIN TONIGHT THOUGH
THERE IS SOME UNCERTAINTY WITH THE MARINE LAYER EXPECTED TO BECOME
MORE COMPRESSED AS A RIDGE BUILDS OVERHEAD. ANY CLOUDS THAT PUSH
INLAND WILL QUICKLY DISSIPATE WEDNESDAY MORNING LEAVING VFR FOR THE
INTERIOR AND IFR OR LIFR NEAR THE COAST FOR MUCH OF THE DAY. /RPA


&&

.MARINE...NORTHERLY WINDS WILL CONTINUE THROUGH THE WEEK AS A RIDGE
OF HIGH PRESSURE REMAINS STATIONED JUST OFFSHORE. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED WITH THE UPDATE TONIGHT BUT THERE
IS STILL UNCERTAINTY IN THE COVERAGE OF SMALL CRAFT WINDS. EITHER
WAY CONDITIONS WILL BE BORDERLINE HAZARDOUS AS FORECASTED WINDS WILL
BE SKIRTING LOW END CRITERIA LEVELS THIS WEEK. STEEP SEAS WILL
PERSIST IN RESPONSE TO THE FRESH WINDS. OTHERWISE A SOUTH, SOUTHWEST
WAVE GROUP WILL IMPACT THE WATERS AS A LOW PRESSURE SYSTEM
APPROACHES CALIFORNIA AND A NORTHWEST SWELL WILL DIMINISH THROUGH
THE WEEK. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 262229
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
329 PM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS THROUGH THIS EVENING.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.SHORT TERM...(THROUGH FRIDAY) AN UPPER LEVEL SHORTWAVE IS ADVANCING
TOWARD NORTHWEST CALIFORNIA AND MAY TRIGGER SOME AFTERNOON/EVENING
STORMS OVER TRINITY COUNTY TODAY. MODEL SOUNDINGS ARE VERY SIMILAR
TO YESTERDAY SO IT WOULD NOT BE A SURPRISE THAT A STRONG OR SEVERE
STORM FORMS. HOWEVER THE SHORTWAVE TODAY IS NOT AS STRONG...WILL
MOVE INTO THE AREA MORE IN THE EVENING THAN AFTERNOON HOURS...AND
HAS A MORE NORTHERLY TRAJECTORY. THUS EVEN THOUGH THE MODEL
SOUNDINGS ARE SIMILAR THERE IS STILL CONSIDERABLE UNCERTAINTY AS TO
HOW MANY SHOWERS/STORMS FORM TODAY. AS THE AFTERNOON HEAT WANES THIS
EVENING INSTABILITY WILL DECREASE AND ANY SHOWERS/STORMS THAT DO
FORM WILL DISSIPATE FOR THE OVERNIGHT HOURS.

COASTAL STRATUS HAS REMAINED PERSISTENT THOUGH SOME BETTER MIXING
HAS ALLOWED THE DEL NORTE COAST TO PARTIALLY CLEAR OUT. THERE IS
POTENTIAL FOR A BRIEF PERIOD OF SUNSHINE EVEN IN THE HUMBOLDT BAY
AREA BEFORE THE CLOUDS EXPAND AGAIN ALONG THE COAST AND SPREAD
INLAND OVERNIGHT. WITH AN UPPER LEVEL RIDGE BEGINNING TO MOVE OVER
THE WEST COAST THE MARINE LAYER SHOULD COMPACT SOME TONIGHT WITH THE
POTENTIAL FOR MORE FOG ALONG THE COAST. A REPEAT ON TUESDAY IS
ANTICIPATED ON WEDNESDAY FOLLOWED BY EVEN A HIGHER LIKELIHOOD OF FOG
WEDNESDAY NIGHT INTO THURSDAY.

AS THE RIDGE BUILDS OVERHEAD ON WEDNESDAY A WARM LAYER WILL MOVE
OVERHEAD RESULTING IN A DECENT CAPPING INVERSION ACROSS THE REGION.
THUS VERY LITTLE IF ANY CONVECTIVE DEVELOPMENT IS ANTICIPATED
WEDNESDAY AFTERNOON AND EVENING. OPTED TO REMOVE THE SHOWER AND
THUNDERSTORM CHANCES FROM THE FORECAST WITH THIS UPDATE FOR
WEDNESDAY.

AN UPPER LEVEL SHORTWAVE ON THE EAST SIDE OF A CUT OFF UPPER LEVEL
LOW OFF THE CALIFORNIA COAST WILL MOVE TOWARD NORTHWEST CALIFORNIA
ON THURSDAY. THIS SHORTWAVE MAY POSSIBLY RESULT IN SOME COOLER AIR
ALOFT AND A TRIGGER TO OVERCOME THE LOW LEVEL INVERSION THURSDAY
AFTERNOON IN THE TRINITY COUNTY MOUNTAINS. THUS SLIGHT CHANCES FOR
THUNDERSTORMS HAVE BEEN MAINTAINED FOR THURSDAY AFTERNOON AND A
REPEAT MAY OCCUR FRIDAY AFTERNOON. /RPA

.LONG TERM (SATURDAY THRU MONDAY)...THE BROAD BRUSH UPPER LEVEL FLOW
IS FORECAST TO HAVE AN AMPLIFIED RIDGE STATIONED OVER THE WEST COAST
BRINGING ABOVE NORMAL TEMPERATURES TO INTERIOR AREAS THIS WEEKEND. A
SHORTWAVE TROUGH WILL SLIDE UNDER THE LONGWAVE RIDGE BRINGING AN
INFLUX OF MOISTURE TO THE REGION AND SOME SHOWER ACTIVITY FOR FAR
EASTERN DEL NORTE, TRINITY, AND NE MENDOCINO COUNTIES. WE`RE STILL
ANALYZING THE POTENTIAL THREAT FOR AFTERNOON THUNDERSTORMS THIS
WEEKEND AS THE APPROACHING SHORTWAVE TROUGH INCREASES MOISTURE OVER
NORTHWEST CALIFORNIA. ADDITIONALLY, LOW LEVEL INSTABILITY AND CAPE
VALUES LOOK FAVORABLE FOR STORM DEVELOPMENT ESPECIALLY IN TRINITY
COUNTY. HOWEVER, STORMS DO NOT TYPICALLY DEVELOP UNDER A SW FLOW
REGIME AND A WEAK CAP IS FORECAST TO DEVELOP WHICH SHOULD DISCOURAGE
THE DEVELOPMENT OF DEEP CONVECTION. FOR NOW, HAVE LEFT THUNDERSTORMS
OUT OF THE LONG TERM FORECAST. MOVING INTO EARLY NEXT WEEK
TEMPERATURES SHOULD RETURN TO NEAR NORMAL AS THE UPPER RIDGE
FLATTENS OUT AND THE FLOW BECOMES MORE ZONAL. /KML


&&

.AVIATION...STRATUS ALONG THE COAST HAS REMAINED PERSISTENT
...PARTICULARLY ON THE MENDOCINO COAST. SOME MIXING HAS OCCURRED
NORTH OF THE CAPE AND MAY BRING A PERIOD OF VFR TO CEC AND ACV
BEFORE THE STRATUS EXPANDS AGAIN AND MOVES INLAND THIS
EVENING/OVERNIGHT. CLOUDS MAY REACH UKI ONCE AGAIN TONIGHT THOUGH
THERE IS SOME UNCERTAINTY WITH THE MARINE LAYER EXPECTED TO BECOME
MORE COMPRESSED AS A RIDGE BUILDS OVERHEAD. ANY CLOUDS THAT PUSH
INLAND WILL QUICKLY DISSIPATE WEDNESDAY MORNING LEAVING VFR FOR THE
INTERIOR AND IFR OR LIFR NEAR THE COAST FOR MUCH OF THE DAY. /RPA


&&

.MARINE...NORTHERLY WINDS WILL CONTINUE THROUGH THE WEEK AS A RIDGE
OF HIGH PRESSURE REMAINS STATIONED JUST OFFSHORE. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED WITH THE UPDATE TONIGHT BUT THERE
IS STILL UNCERTAINTY IN THE COVERAGE OF SMALL CRAFT WINDS. EITHER
WAY CONDITIONS WILL BE BORDERLINE HAZARDOUS AS FORECASTED WINDS WILL
BE SKIRTING LOW END CRITERIA LEVELS THIS WEEK. STEEP SEAS WILL
PERSIST IN RESPONSE TO THE FRESH WINDS. OTHERWISE A SOUTH, SOUTHWEST
WAVE GROUP WILL IMPACT THE WATERS AS A LOW PRESSURE SYSTEM
APPROACHES CALIFORNIA AND A NORTHWEST SWELL WILL DIMINISH THROUGH
THE WEEK. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 262229
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
329 PM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS THROUGH THIS EVENING.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.SHORT TERM...(THROUGH FRIDAY) AN UPPER LEVEL SHORTWAVE IS ADVANCING
TOWARD NORTHWEST CALIFORNIA AND MAY TRIGGER SOME AFTERNOON/EVENING
STORMS OVER TRINITY COUNTY TODAY. MODEL SOUNDINGS ARE VERY SIMILAR
TO YESTERDAY SO IT WOULD NOT BE A SURPRISE THAT A STRONG OR SEVERE
STORM FORMS. HOWEVER THE SHORTWAVE TODAY IS NOT AS STRONG...WILL
MOVE INTO THE AREA MORE IN THE EVENING THAN AFTERNOON HOURS...AND
HAS A MORE NORTHERLY TRAJECTORY. THUS EVEN THOUGH THE MODEL
SOUNDINGS ARE SIMILAR THERE IS STILL CONSIDERABLE UNCERTAINTY AS TO
HOW MANY SHOWERS/STORMS FORM TODAY. AS THE AFTERNOON HEAT WANES THIS
EVENING INSTABILITY WILL DECREASE AND ANY SHOWERS/STORMS THAT DO
FORM WILL DISSIPATE FOR THE OVERNIGHT HOURS.

COASTAL STRATUS HAS REMAINED PERSISTENT THOUGH SOME BETTER MIXING
HAS ALLOWED THE DEL NORTE COAST TO PARTIALLY CLEAR OUT. THERE IS
POTENTIAL FOR A BRIEF PERIOD OF SUNSHINE EVEN IN THE HUMBOLDT BAY
AREA BEFORE THE CLOUDS EXPAND AGAIN ALONG THE COAST AND SPREAD
INLAND OVERNIGHT. WITH AN UPPER LEVEL RIDGE BEGINNING TO MOVE OVER
THE WEST COAST THE MARINE LAYER SHOULD COMPACT SOME TONIGHT WITH THE
POTENTIAL FOR MORE FOG ALONG THE COAST. A REPEAT ON TUESDAY IS
ANTICIPATED ON WEDNESDAY FOLLOWED BY EVEN A HIGHER LIKELIHOOD OF FOG
WEDNESDAY NIGHT INTO THURSDAY.

AS THE RIDGE BUILDS OVERHEAD ON WEDNESDAY A WARM LAYER WILL MOVE
OVERHEAD RESULTING IN A DECENT CAPPING INVERSION ACROSS THE REGION.
THUS VERY LITTLE IF ANY CONVECTIVE DEVELOPMENT IS ANTICIPATED
WEDNESDAY AFTERNOON AND EVENING. OPTED TO REMOVE THE SHOWER AND
THUNDERSTORM CHANCES FROM THE FORECAST WITH THIS UPDATE FOR
WEDNESDAY.

AN UPPER LEVEL SHORTWAVE ON THE EAST SIDE OF A CUT OFF UPPER LEVEL
LOW OFF THE CALIFORNIA COAST WILL MOVE TOWARD NORTHWEST CALIFORNIA
ON THURSDAY. THIS SHORTWAVE MAY POSSIBLY RESULT IN SOME COOLER AIR
ALOFT AND A TRIGGER TO OVERCOME THE LOW LEVEL INVERSION THURSDAY
AFTERNOON IN THE TRINITY COUNTY MOUNTAINS. THUS SLIGHT CHANCES FOR
THUNDERSTORMS HAVE BEEN MAINTAINED FOR THURSDAY AFTERNOON AND A
REPEAT MAY OCCUR FRIDAY AFTERNOON. /RPA

.LONG TERM (SATURDAY THRU MONDAY)...THE BROAD BRUSH UPPER LEVEL FLOW
IS FORECAST TO HAVE AN AMPLIFIED RIDGE STATIONED OVER THE WEST COAST
BRINGING ABOVE NORMAL TEMPERATURES TO INTERIOR AREAS THIS WEEKEND. A
SHORTWAVE TROUGH WILL SLIDE UNDER THE LONGWAVE RIDGE BRINGING AN
INFLUX OF MOISTURE TO THE REGION AND SOME SHOWER ACTIVITY FOR FAR
EASTERN DEL NORTE, TRINITY, AND NE MENDOCINO COUNTIES. WE`RE STILL
ANALYZING THE POTENTIAL THREAT FOR AFTERNOON THUNDERSTORMS THIS
WEEKEND AS THE APPROACHING SHORTWAVE TROUGH INCREASES MOISTURE OVER
NORTHWEST CALIFORNIA. ADDITIONALLY, LOW LEVEL INSTABILITY AND CAPE
VALUES LOOK FAVORABLE FOR STORM DEVELOPMENT ESPECIALLY IN TRINITY
COUNTY. HOWEVER, STORMS DO NOT TYPICALLY DEVELOP UNDER A SW FLOW
REGIME AND A WEAK CAP IS FORECAST TO DEVELOP WHICH SHOULD DISCOURAGE
THE DEVELOPMENT OF DEEP CONVECTION. FOR NOW, HAVE LEFT THUNDERSTORMS
OUT OF THE LONG TERM FORECAST. MOVING INTO EARLY NEXT WEEK
TEMPERATURES SHOULD RETURN TO NEAR NORMAL AS THE UPPER RIDGE
FLATTENS OUT AND THE FLOW BECOMES MORE ZONAL. /KML


&&

.AVIATION...STRATUS ALONG THE COAST HAS REMAINED PERSISTENT
...PARTICULARLY ON THE MENDOCINO COAST. SOME MIXING HAS OCCURRED
NORTH OF THE CAPE AND MAY BRING A PERIOD OF VFR TO CEC AND ACV
BEFORE THE STRATUS EXPANDS AGAIN AND MOVES INLAND THIS
EVENING/OVERNIGHT. CLOUDS MAY REACH UKI ONCE AGAIN TONIGHT THOUGH
THERE IS SOME UNCERTAINTY WITH THE MARINE LAYER EXPECTED TO BECOME
MORE COMPRESSED AS A RIDGE BUILDS OVERHEAD. ANY CLOUDS THAT PUSH
INLAND WILL QUICKLY DISSIPATE WEDNESDAY MORNING LEAVING VFR FOR THE
INTERIOR AND IFR OR LIFR NEAR THE COAST FOR MUCH OF THE DAY. /RPA


&&

.MARINE...NORTHERLY WINDS WILL CONTINUE THROUGH THE WEEK AS A RIDGE
OF HIGH PRESSURE REMAINS STATIONED JUST OFFSHORE. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED WITH THE UPDATE TONIGHT BUT THERE
IS STILL UNCERTAINTY IN THE COVERAGE OF SMALL CRAFT WINDS. EITHER
WAY CONDITIONS WILL BE BORDERLINE HAZARDOUS AS FORECASTED WINDS WILL
BE SKIRTING LOW END CRITERIA LEVELS THIS WEEK. STEEP SEAS WILL
PERSIST IN RESPONSE TO THE FRESH WINDS. OTHERWISE A SOUTH, SOUTHWEST
WAVE GROUP WILL IMPACT THE WATERS AS A LOW PRESSURE SYSTEM
APPROACHES CALIFORNIA AND A NORTHWEST SWELL WILL DIMINISH THROUGH
THE WEEK. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 261214
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
514 AM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS AGAIN THIS AFTERNOON.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.DISCUSSION...INSTABILITY WILL CONTINUE TO BRING A THREAT FOR
AFTERNOON AND EVENING THUNDERSTORMS TO EASTERN PORTIONS OF
TRINITY COUNTY TODAY. THE FAVORED LOCATIONS FOR DEEP CONVECTION
WILL BE AROUND THE HORN AND OVER THE YOLLA BOLLYS AGAIN. BUKFIT
PROFILES ARE NOT LOOKING NEARLY AS IMPRESSIVE AS YESTERDAY WITH
LONG SKINNY SBCAPE PEAKING NEAR 600J/KG AND LIFTED INDICES NEAR
-1C. THE FLOW ALOFT IS FROM THE WNW...SO ANY STORMS THAT DO FIRE
UP OVER THESE FAVORED REGIONS WILL LIKELY PROPAGATE QUICKLY OUT OF
THE FORECAST AREA. EVEN THOUGH THE PWAT DECREASE A TAD TODAY...A
MODERATE SHOWER WILL BE POSSIBLE OVER THE HIGHER TERRAIN AROUND
THE HORN AND YOLLA BOLLYS.

AN UPPER LOW OVER EASTERN WASHINGTON TODAY WILL START TO
SLOWLY TRACK EASTWARD ON WEDNESDAY AS AN UPPER RIDGE OFFSHORE
BUILDS CLOSER TO THE COAST. THE NAM12 SHOWS WEAK INSTABILITY
LINGERING ON WED...HOWEVER BUFKIT PROFILES INDICATE NOTHING MORE
THAN SOME SHALLOW SHOWER ACTIVITY OVER THE MOUNTAINS. THE FLOW
ALOFT WILL GO NORTHWESTERLY AND DRIES OUT EVEN MORE ON WED.
TO MATCH UP WITH NEIGHBORING OFFICES AND SPC`S GENERAL TSTM
OUTLOOK...MAINTAINED A SLIGHT CHANCE OF TSTMS OVER THE HIGHER
TERRAIN AROUND THE HORN AND YOLLA BOLLYS.

DRY AND WARMER WEATHER CONDITIONS WILL CONTINUE TO BE THE RULE
THU THROUGH SAT AS A BROAD FLAT RIDGE BUILDS OVER THE AREA. NUDGED
MAX TEMPERATURES UP IN THE INTERIOR ABOVE THE CONSENSUS...INTO THE
LOWER TO MID 90S. THE CONSENSUS HAS A TENDENCY TO BE TOO LOW. THE
GFS CONTINUES TO SHOW WEAK INSTABILITY AND LIGHT PRECIP JUST ABOUT
EVERY DAY...SO I WONT RULE OUT THE POSSIBILITY FOR A FEW SHOWERS
OVER THE HIGHER TERRAIN WITH DAYTIME HEATING. SOUTHWESTERLY FLOW
ALOFT IS TYPICALLY DRY AND NOT CONDUCIVE TO DEEP CONVECTION IN OUR
AREA. THUS WILL NOT ADD ANY MENTION OF TSTMS AT THIS TIME. BOTH
THE GFS AND ECMWF HAVE BEEN CONSISTENT ON BRINGING A NEW UPPER
TROUGH TOWARD THE COAST SUN INTO MON. BOTH GENERATE SOME PRECIP AS
WELL. THE GFS SHOWS INSTABILITY INCREASING ACROSS THE AREA SUNDAY
AS THE TROUGH AND PWAT PLUME APPROACHES. PRECIP CHANCES HAVE BEEN
BEEFED UP AND MAY NEED TO BE INCREASED MORE IF THE MODELS REMAIN
CONSISTENT. IT DOES NOT LOOK LIKE AN ALL DAY RAIN OUT...HOWEVER
SOME SHOWERS WILL BE POSSIBLE. THE TIMING AND COVERAGE ARE STILL
VERY UNCERTAIN.

AS FOR THE STRATUS..,NAM12 AND DGEX PROFILES INDICATE MORE OF THE
SAME THROUGH THE WEEK. THE SURFACE PRESSURE PATTERN REMAINS
STRONGLY ONSHORE THROUGH THE WEEK AS WELL AND SEE NO REASON
TO GO AGAINST PERSISTENCE AT THIS TIME. WARMING ALOFT LATER IN
THE WEEK MAY SMASH THE LAYER FOR MORE CLEARING TO THE SHORELINE IN
THE AFTERNOON. FOR NOW WILL MAINTAIN A RATHER PESSIMISTIC OUTLOOK.

&&

.AVIATION...ANOTHER WELL THUS WILL NOT ADD ANY MENTION OF ENTRENCHED
MARINE LAYER WITH LITTLE HOPE OF BREAKING SKIES ALONG THE COAST.
GENERALLY MVFR EARLY THIS MORNING WITH GOOD VSBYS AND CIGS RANGING
FROM 8 HUNDRED TO 1200 FEET. EXPECT THE COASTAL CIGS RISE TO NEAR
2K FT BY EARLY AFTERNOON WITH ONLY SOME BREAKS POSSIBLE. INLAND
THERE IS SOME MVFR CIGS ALONG THE INLAND COASTAL VALLEYS BUT THIS
SHOULD BURN OFF BY LATE MORNING. ELSEWHERE VFR WILL CONTINUE WITH
ISOLATED SHOWERS OR TSTORMS POSSIBLE LATE IN THE AFTERNOON.

&&

.MARINE...NEAR COAST WINDS WILL REMAIN OUT OF THE NORTH TODAY BUT
DROP IN MAGNITUDE COMPARED TO THE LAST FEW DAYS.  SHORT PERIOD SEAS
WILL REMAIN NEAR SCA THRESHOLDS HOWEVER BUT THE UPPER LEVEL PATTERN
BEGINS TO CHANGE TOWARD WEDNESDAY...DIMINISHING THE GRADIENT AND
RESULTING WINDS EVEN MORE....AND BY WED AFTERNOON THE COASTAL WATERS
SHOULD BE ADVISORY FREE.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 261214
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
514 AM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS AGAIN THIS AFTERNOON.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.DISCUSSION...INSTABILITY WILL CONTINUE TO BRING A THREAT FOR
AFTERNOON AND EVENING THUNDERSTORMS TO EASTERN PORTIONS OF
TRINITY COUNTY TODAY. THE FAVORED LOCATIONS FOR DEEP CONVECTION
WILL BE AROUND THE HORN AND OVER THE YOLLA BOLLYS AGAIN. BUKFIT
PROFILES ARE NOT LOOKING NEARLY AS IMPRESSIVE AS YESTERDAY WITH
LONG SKINNY SBCAPE PEAKING NEAR 600J/KG AND LIFTED INDICES NEAR
-1C. THE FLOW ALOFT IS FROM THE WNW...SO ANY STORMS THAT DO FIRE
UP OVER THESE FAVORED REGIONS WILL LIKELY PROPAGATE QUICKLY OUT OF
THE FORECAST AREA. EVEN THOUGH THE PWAT DECREASE A TAD TODAY...A
MODERATE SHOWER WILL BE POSSIBLE OVER THE HIGHER TERRAIN AROUND
THE HORN AND YOLLA BOLLYS.

AN UPPER LOW OVER EASTERN WASHINGTON TODAY WILL START TO
SLOWLY TRACK EASTWARD ON WEDNESDAY AS AN UPPER RIDGE OFFSHORE
BUILDS CLOSER TO THE COAST. THE NAM12 SHOWS WEAK INSTABILITY
LINGERING ON WED...HOWEVER BUFKIT PROFILES INDICATE NOTHING MORE
THAN SOME SHALLOW SHOWER ACTIVITY OVER THE MOUNTAINS. THE FLOW
ALOFT WILL GO NORTHWESTERLY AND DRIES OUT EVEN MORE ON WED.
TO MATCH UP WITH NEIGHBORING OFFICES AND SPC`S GENERAL TSTM
OUTLOOK...MAINTAINED A SLIGHT CHANCE OF TSTMS OVER THE HIGHER
TERRAIN AROUND THE HORN AND YOLLA BOLLYS.

DRY AND WARMER WEATHER CONDITIONS WILL CONTINUE TO BE THE RULE
THU THROUGH SAT AS A BROAD FLAT RIDGE BUILDS OVER THE AREA. NUDGED
MAX TEMPERATURES UP IN THE INTERIOR ABOVE THE CONSENSUS...INTO THE
LOWER TO MID 90S. THE CONSENSUS HAS A TENDENCY TO BE TOO LOW. THE
GFS CONTINUES TO SHOW WEAK INSTABILITY AND LIGHT PRECIP JUST ABOUT
EVERY DAY...SO I WONT RULE OUT THE POSSIBILITY FOR A FEW SHOWERS
OVER THE HIGHER TERRAIN WITH DAYTIME HEATING. SOUTHWESTERLY FLOW
ALOFT IS TYPICALLY DRY AND NOT CONDUCIVE TO DEEP CONVECTION IN OUR
AREA. THUS WILL NOT ADD ANY MENTION OF TSTMS AT THIS TIME. BOTH
THE GFS AND ECMWF HAVE BEEN CONSISTENT ON BRINGING A NEW UPPER
TROUGH TOWARD THE COAST SUN INTO MON. BOTH GENERATE SOME PRECIP AS
WELL. THE GFS SHOWS INSTABILITY INCREASING ACROSS THE AREA SUNDAY
AS THE TROUGH AND PWAT PLUME APPROACHES. PRECIP CHANCES HAVE BEEN
BEEFED UP AND MAY NEED TO BE INCREASED MORE IF THE MODELS REMAIN
CONSISTENT. IT DOES NOT LOOK LIKE AN ALL DAY RAIN OUT...HOWEVER
SOME SHOWERS WILL BE POSSIBLE. THE TIMING AND COVERAGE ARE STILL
VERY UNCERTAIN.

AS FOR THE STRATUS..,NAM12 AND DGEX PROFILES INDICATE MORE OF THE
SAME THROUGH THE WEEK. THE SURFACE PRESSURE PATTERN REMAINS
STRONGLY ONSHORE THROUGH THE WEEK AS WELL AND SEE NO REASON
TO GO AGAINST PERSISTENCE AT THIS TIME. WARMING ALOFT LATER IN
THE WEEK MAY SMASH THE LAYER FOR MORE CLEARING TO THE SHORELINE IN
THE AFTERNOON. FOR NOW WILL MAINTAIN A RATHER PESSIMISTIC OUTLOOK.

&&

.AVIATION...ANOTHER WELL THUS WILL NOT ADD ANY MENTION OF ENTRENCHED
MARINE LAYER WITH LITTLE HOPE OF BREAKING SKIES ALONG THE COAST.
GENERALLY MVFR EARLY THIS MORNING WITH GOOD VSBYS AND CIGS RANGING
FROM 8 HUNDRED TO 1200 FEET. EXPECT THE COASTAL CIGS RISE TO NEAR
2K FT BY EARLY AFTERNOON WITH ONLY SOME BREAKS POSSIBLE. INLAND
THERE IS SOME MVFR CIGS ALONG THE INLAND COASTAL VALLEYS BUT THIS
SHOULD BURN OFF BY LATE MORNING. ELSEWHERE VFR WILL CONTINUE WITH
ISOLATED SHOWERS OR TSTORMS POSSIBLE LATE IN THE AFTERNOON.

&&

.MARINE...NEAR COAST WINDS WILL REMAIN OUT OF THE NORTH TODAY BUT
DROP IN MAGNITUDE COMPARED TO THE LAST FEW DAYS.  SHORT PERIOD SEAS
WILL REMAIN NEAR SCA THRESHOLDS HOWEVER BUT THE UPPER LEVEL PATTERN
BEGINS TO CHANGE TOWARD WEDNESDAY...DIMINISHING THE GRADIENT AND
RESULTING WINDS EVEN MORE....AND BY WED AFTERNOON THE COASTAL WATERS
SHOULD BE ADVISORY FREE.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 261214
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
514 AM PDT TUE MAY 26 2015

.SYNOPSIS...LINGERING INSTABILITY ACROSS EASTERN TRINITY COUNTY
WILL BRING THE POSSIBILITY OF THUNDERSTORMS AGAIN THIS AFTERNOON.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL THROUGH THE WEEK.

&&

.DISCUSSION...INSTABILITY WILL CONTINUE TO BRING A THREAT FOR
AFTERNOON AND EVENING THUNDERSTORMS TO EASTERN PORTIONS OF
TRINITY COUNTY TODAY. THE FAVORED LOCATIONS FOR DEEP CONVECTION
WILL BE AROUND THE HORN AND OVER THE YOLLA BOLLYS AGAIN. BUKFIT
PROFILES ARE NOT LOOKING NEARLY AS IMPRESSIVE AS YESTERDAY WITH
LONG SKINNY SBCAPE PEAKING NEAR 600J/KG AND LIFTED INDICES NEAR
-1C. THE FLOW ALOFT IS FROM THE WNW...SO ANY STORMS THAT DO FIRE
UP OVER THESE FAVORED REGIONS WILL LIKELY PROPAGATE QUICKLY OUT OF
THE FORECAST AREA. EVEN THOUGH THE PWAT DECREASE A TAD TODAY...A
MODERATE SHOWER WILL BE POSSIBLE OVER THE HIGHER TERRAIN AROUND
THE HORN AND YOLLA BOLLYS.

AN UPPER LOW OVER EASTERN WASHINGTON TODAY WILL START TO
SLOWLY TRACK EASTWARD ON WEDNESDAY AS AN UPPER RIDGE OFFSHORE
BUILDS CLOSER TO THE COAST. THE NAM12 SHOWS WEAK INSTABILITY
LINGERING ON WED...HOWEVER BUFKIT PROFILES INDICATE NOTHING MORE
THAN SOME SHALLOW SHOWER ACTIVITY OVER THE MOUNTAINS. THE FLOW
ALOFT WILL GO NORTHWESTERLY AND DRIES OUT EVEN MORE ON WED.
TO MATCH UP WITH NEIGHBORING OFFICES AND SPC`S GENERAL TSTM
OUTLOOK...MAINTAINED A SLIGHT CHANCE OF TSTMS OVER THE HIGHER
TERRAIN AROUND THE HORN AND YOLLA BOLLYS.

DRY AND WARMER WEATHER CONDITIONS WILL CONTINUE TO BE THE RULE
THU THROUGH SAT AS A BROAD FLAT RIDGE BUILDS OVER THE AREA. NUDGED
MAX TEMPERATURES UP IN THE INTERIOR ABOVE THE CONSENSUS...INTO THE
LOWER TO MID 90S. THE CONSENSUS HAS A TENDENCY TO BE TOO LOW. THE
GFS CONTINUES TO SHOW WEAK INSTABILITY AND LIGHT PRECIP JUST ABOUT
EVERY DAY...SO I WONT RULE OUT THE POSSIBILITY FOR A FEW SHOWERS
OVER THE HIGHER TERRAIN WITH DAYTIME HEATING. SOUTHWESTERLY FLOW
ALOFT IS TYPICALLY DRY AND NOT CONDUCIVE TO DEEP CONVECTION IN OUR
AREA. THUS WILL NOT ADD ANY MENTION OF TSTMS AT THIS TIME. BOTH
THE GFS AND ECMWF HAVE BEEN CONSISTENT ON BRINGING A NEW UPPER
TROUGH TOWARD THE COAST SUN INTO MON. BOTH GENERATE SOME PRECIP AS
WELL. THE GFS SHOWS INSTABILITY INCREASING ACROSS THE AREA SUNDAY
AS THE TROUGH AND PWAT PLUME APPROACHES. PRECIP CHANCES HAVE BEEN
BEEFED UP AND MAY NEED TO BE INCREASED MORE IF THE MODELS REMAIN
CONSISTENT. IT DOES NOT LOOK LIKE AN ALL DAY RAIN OUT...HOWEVER
SOME SHOWERS WILL BE POSSIBLE. THE TIMING AND COVERAGE ARE STILL
VERY UNCERTAIN.

AS FOR THE STRATUS..,NAM12 AND DGEX PROFILES INDICATE MORE OF THE
SAME THROUGH THE WEEK. THE SURFACE PRESSURE PATTERN REMAINS
STRONGLY ONSHORE THROUGH THE WEEK AS WELL AND SEE NO REASON
TO GO AGAINST PERSISTENCE AT THIS TIME. WARMING ALOFT LATER IN
THE WEEK MAY SMASH THE LAYER FOR MORE CLEARING TO THE SHORELINE IN
THE AFTERNOON. FOR NOW WILL MAINTAIN A RATHER PESSIMISTIC OUTLOOK.

&&

.AVIATION...ANOTHER WELL THUS WILL NOT ADD ANY MENTION OF ENTRENCHED
MARINE LAYER WITH LITTLE HOPE OF BREAKING SKIES ALONG THE COAST.
GENERALLY MVFR EARLY THIS MORNING WITH GOOD VSBYS AND CIGS RANGING
FROM 8 HUNDRED TO 1200 FEET. EXPECT THE COASTAL CIGS RISE TO NEAR
2K FT BY EARLY AFTERNOON WITH ONLY SOME BREAKS POSSIBLE. INLAND
THERE IS SOME MVFR CIGS ALONG THE INLAND COASTAL VALLEYS BUT THIS
SHOULD BURN OFF BY LATE MORNING. ELSEWHERE VFR WILL CONTINUE WITH
ISOLATED SHOWERS OR TSTORMS POSSIBLE LATE IN THE AFTERNOON.

&&

.MARINE...NEAR COAST WINDS WILL REMAIN OUT OF THE NORTH TODAY BUT
DROP IN MAGNITUDE COMPARED TO THE LAST FEW DAYS.  SHORT PERIOD SEAS
WILL REMAIN NEAR SCA THRESHOLDS HOWEVER BUT THE UPPER LEVEL PATTERN
BEGINS TO CHANGE TOWARD WEDNESDAY...DIMINISHING THE GRADIENT AND
RESULTING WINDS EVEN MORE....AND BY WED AFTERNOON THE COASTAL WATERS
SHOULD BE ADVISORY FREE.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 252244
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 PM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THROUGH THIS EVENING.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL. LOW CLOUDS WILL
CONTINUE TO IMPACT COASTAL AREAS.


&&

.SHORT TERM...(THROUGH THURSDAY) AN UPPER LOW OVER WASHINGTON
CONTINUES TO PINWHEEL UPPER LEVEL ENERGY OVER NORTHWEST CALIFORNIA.
A SHORTWAVE MOVING OVERHEAD TODAY HAS ALLOWED SHOWERS AND ISOLATED
THUNDERSTORMS TO FORM OVER TRINITY COUNTY WHERE INSTABILITY IS
GREATEST. NORTHWESTERLY FLOW WILL PUSH THE STORMS TOWARD THE
SOUTHEAST OUT OF TRINITY COUNTY BY THE EARLY EVENING HOURS LEAVING
NORTHWEST CALIFORNIA DRY FOR THE OVERNIGHT. THE MARINE LAYER NEAR
THE COAST HAS BEEN QUITE PERSISTENT TODAY AND VERY DEEP. THIS
EVENING THE MARINE LAYER WILL ONCE AGAIN PUSH INLAND IMPACTING MANY
VALLEYS OF DEL NORTE...HUMBOLDT...AND MENDOCINO COUNTIES OVERNIGHT
INTO TUESDAY MORNING.

THE UPPER LEVEL LOW WILL CONTINUE TO SPIN OVER WASHINGTON ON TUESDAY
ALLOWING FOR ANOTHER ROUND OF SHOWERS AND STORMS OVER THE INTERIOR
MOUNTAINS PUSHING OFF TO THE SOUTHEAST. SOME WARMING ALOFT AS AN
UPPER LEVEL RIDGE BEGINS TO BUILD TOWARD THE WEST COAST MAY RESULT
IN MORE CAPPING THAN TODAY LIMITING THE NUMBER OF STORMS THAT
DEVELOP. THE MARINE LAYER WILL ONCE AGAIN PULL BACK TO THE COAST BUT
THEN REMAIN IN PLACE FOR COASTAL LOCATIONS FOR MUCH OF THE DAY.

THE UPPER LOW WILL BE PUSHED TOWARD THE EAST SLIGHTLY TUESDAY NIGHT
INTO WEDNESDAY AND THEN FARTHER EAST ON THURSDAY AS THE RIDGE BUILDS
OVER THE WEST COAST. THE RIDGE WILL END SHOWER DEVELOPMENT OVER THE
INTERIOR AS WARM AIR BUILDS ALOFT. THIS STRENGTHENING INVERSION WILL
COMPACT THE MARINE LAYER LIKELY RESULTING IN LOWERING CEILINGS AND
MORE FOG FOR COASTAL AREAS DURING MOSTLY THE OVERNIGHT AND MORNING
HOURS. /RPA

.LONG TERM...(FRIDAY THROUGH MONDAY) THE MODELS HAVE THE RIDGE
HOLDING INTO FRIDAY FOR CONTINUED WARMING AND DRYING. MODELS
CONTINUE TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO
SUN WITH SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS
SLIGHTLY TO OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY
LITTLE CHANCES FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING
PEAK HEATING. THE FORECAST REALLY BECOMES MURKY NEXT SUN AND MON.
MODELS PLOW THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS
HAPPENS WE WILL SEE MORE TERRAIN DRIVEN SHOWERS AND PERHAPS
STORMS. MODELS HAVE BEEN INCONSISTENT, SO WILL CONTINUE TO NOT
HAVE ANY SHOWERS IN THE FORECAST UNTIL THERE IS BETTER CONTINUITY
AND CONSISTENCY.


&&

.AVIATION...ALONG THE COAST CIGS HAD ACTUALLY LOWERED FROM MVFR TO
IFR...WHICH HAS PREVAILED THROUGH THE EARLY HALF OF THE AFTERNOON.
HOWEVER BY MID AFTERNOON THERE WERE A FEW POCKETS OF CLEARING SKIES
ESPECIALLY NEAR CRESCENT CITY...BUT STILL THE STRATUS CONTINUED TO
ENVELOP MOST OF THE COAST. INLAND...CLOUDS SCOURED OUT OF COASTAL
MOUNTAIN VALLEYS BY 10 AM BRINGING VFR CONDITIONS TO INTERIOR
AREAS. EXPECT TO SEE AT LEAST A FEW MVFR/IFR CLOUDS TO REFORM IN
INTERIOR VALLEYS OVERNIGHT. FOR CONVECTION...WIDELY SCATTERED
SHOWERS DEVELOPED OVER MUCH OF TRINITY COUNTY AND EASTERN MENDOCINO
THIS AFTERNOON AND WILL CONTINUE INTO EARLY EVENING. TA


&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS EVENING CONTRIBUTING TO LOCALLY GENERATED SHORT PERIOD WAVES
GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND STEEP SEAS WILL
PERSIST AT LEAST ANOTHER 12-24 HOURS DUE TO AN OFFSHORE HIGH
PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO CHANGE TOWARD
WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 252244
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 PM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THROUGH THIS EVENING.
OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL. LOW CLOUDS WILL
CONTINUE TO IMPACT COASTAL AREAS.


&&

.SHORT TERM...(THROUGH THURSDAY) AN UPPER LOW OVER WASHINGTON
CONTINUES TO PINWHEEL UPPER LEVEL ENERGY OVER NORTHWEST CALIFORNIA.
A SHORTWAVE MOVING OVERHEAD TODAY HAS ALLOWED SHOWERS AND ISOLATED
THUNDERSTORMS TO FORM OVER TRINITY COUNTY WHERE INSTABILITY IS
GREATEST. NORTHWESTERLY FLOW WILL PUSH THE STORMS TOWARD THE
SOUTHEAST OUT OF TRINITY COUNTY BY THE EARLY EVENING HOURS LEAVING
NORTHWEST CALIFORNIA DRY FOR THE OVERNIGHT. THE MARINE LAYER NEAR
THE COAST HAS BEEN QUITE PERSISTENT TODAY AND VERY DEEP. THIS
EVENING THE MARINE LAYER WILL ONCE AGAIN PUSH INLAND IMPACTING MANY
VALLEYS OF DEL NORTE...HUMBOLDT...AND MENDOCINO COUNTIES OVERNIGHT
INTO TUESDAY MORNING.

THE UPPER LEVEL LOW WILL CONTINUE TO SPIN OVER WASHINGTON ON TUESDAY
ALLOWING FOR ANOTHER ROUND OF SHOWERS AND STORMS OVER THE INTERIOR
MOUNTAINS PUSHING OFF TO THE SOUTHEAST. SOME WARMING ALOFT AS AN
UPPER LEVEL RIDGE BEGINS TO BUILD TOWARD THE WEST COAST MAY RESULT
IN MORE CAPPING THAN TODAY LIMITING THE NUMBER OF STORMS THAT
DEVELOP. THE MARINE LAYER WILL ONCE AGAIN PULL BACK TO THE COAST BUT
THEN REMAIN IN PLACE FOR COASTAL LOCATIONS FOR MUCH OF THE DAY.

THE UPPER LOW WILL BE PUSHED TOWARD THE EAST SLIGHTLY TUESDAY NIGHT
INTO WEDNESDAY AND THEN FARTHER EAST ON THURSDAY AS THE RIDGE BUILDS
OVER THE WEST COAST. THE RIDGE WILL END SHOWER DEVELOPMENT OVER THE
INTERIOR AS WARM AIR BUILDS ALOFT. THIS STRENGTHENING INVERSION WILL
COMPACT THE MARINE LAYER LIKELY RESULTING IN LOWERING CEILINGS AND
MORE FOG FOR COASTAL AREAS DURING MOSTLY THE OVERNIGHT AND MORNING
HOURS. /RPA

.LONG TERM...(FRIDAY THROUGH MONDAY) THE MODELS HAVE THE RIDGE
HOLDING INTO FRIDAY FOR CONTINUED WARMING AND DRYING. MODELS
CONTINUE TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO
SUN WITH SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS
SLIGHTLY TO OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY
LITTLE CHANCES FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING
PEAK HEATING. THE FORECAST REALLY BECOMES MURKY NEXT SUN AND MON.
MODELS PLOW THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS
HAPPENS WE WILL SEE MORE TERRAIN DRIVEN SHOWERS AND PERHAPS
STORMS. MODELS HAVE BEEN INCONSISTENT, SO WILL CONTINUE TO NOT
HAVE ANY SHOWERS IN THE FORECAST UNTIL THERE IS BETTER CONTINUITY
AND CONSISTENCY.


&&

.AVIATION...ALONG THE COAST CIGS HAD ACTUALLY LOWERED FROM MVFR TO
IFR...WHICH HAS PREVAILED THROUGH THE EARLY HALF OF THE AFTERNOON.
HOWEVER BY MID AFTERNOON THERE WERE A FEW POCKETS OF CLEARING SKIES
ESPECIALLY NEAR CRESCENT CITY...BUT STILL THE STRATUS CONTINUED TO
ENVELOP MOST OF THE COAST. INLAND...CLOUDS SCOURED OUT OF COASTAL
MOUNTAIN VALLEYS BY 10 AM BRINGING VFR CONDITIONS TO INTERIOR
AREAS. EXPECT TO SEE AT LEAST A FEW MVFR/IFR CLOUDS TO REFORM IN
INTERIOR VALLEYS OVERNIGHT. FOR CONVECTION...WIDELY SCATTERED
SHOWERS DEVELOPED OVER MUCH OF TRINITY COUNTY AND EASTERN MENDOCINO
THIS AFTERNOON AND WILL CONTINUE INTO EARLY EVENING. TA


&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS EVENING CONTRIBUTING TO LOCALLY GENERATED SHORT PERIOD WAVES
GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND STEEP SEAS WILL
PERSIST AT LEAST ANOTHER 12-24 HOURS DUE TO AN OFFSHORE HIGH
PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO CHANGE TOWARD
WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 251044
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 AM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THIS AFTERNOON AND
EVENING. OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL.
LOW CLOUDS WILL CONTINUE TO COVER COASTAL AREAS WITH ONLY
PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...A SHORT-WAVE TROUGH IN NORTHWEST FLOW ALOFT WILL
CLIP THE REGION TODAY. THIS TROUGH WILL GENERATE SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS PRIMARILY IN TRINITY COUNTY THIS
AFTERNOON AND EVENING. THE INCOMING SHORT WAVE IS FAIRLY DRY
WITH NO DEEP LAYER MOISTURE TRANSPORT INTO THE AREA. PWATS WILL
STILL BE SUFFICIENTLY HIGH FOR SHOWER AND THUNDERSTORM ACTIVITY
THIS AFTERNOON AND EVENING. NW FLOW ALOFT WILL QUICKLY PUSH THE
STORMS OFF TO THE SOUTHEAST. THE QUICK STORM MOTION WILL MITIGATE
THE THREAT OF ISOLATED HEAVY RAIN. THE PWATS ARE FORECAST TO BE
NEAR 1 INCH TODAY. MOST OF THAT IS IN THE LOWEST PORTION OF THE
ATMOSPHERE BELOW ABOUT 10KFT. THERE IS STILL AN OUTSIDE CHANCE FOR
A BRIEF HEAVY DOWNPOUR...ESPECIALLY AROUND THE HORN AND THE YOLLA
BOLLYS.

NW CYCLONIC FLOW ALOFT WILL LINGER OVER THE AREA ON TUE.
ANOTHER VORT LOBE WILL CLIP THE AREA AND PROBABLY GENERATE
MORE ISOLATED OR SCATTERED SHOWERS IN TRINITY COUNTY.
THE PROFILES ARE NOT LOOKING AS FAVORABLE FOR DEEP CONVECTION ON
TUE. A FEW STORMS MAY STILL DEVELOP ACROSS THE HIGHER TERRAIN AND
NEAR THE PERIPHERY OF TRINITY COUNTY...SO WILL LEAVE THEM IN THE
FORECAST. WEAK INSTABILITY WILL LINGER INTO WED AS THE UPPER LOW
PARKED OVER THE PAC NW EXITS TO THE EAST. THERE MAY STILL BE A FEW
WEAK SHOWERS OVER THE MOUNTAINS OF EASTERN TRINITY COUNTY.
CONDITIONS SHOULD STABILIZE AND DRY OUT ON THU AS A RIDGE ALOFT
BUILDS OVER THE AREA. MAX TEMPERATURES WILL LIKELY WARM UP IN THE
INTERIOR ON THU...WITH SOME SITES HITTING THE LOWER TO MID 90S.
THE FLOW WILL REMAIN ONSHORE AND STRATUS WILL PROBABLY STILL PUSH
INTO THE COASTAL RIVER VALLEYS AND OFFSET THE WARMING POTENTIAL
THERE. THE LATEST RUN OF THE GFS AND ECMWF HAS THE RIDGE HOLDING
INTO FRIDAY FOR CONTINUED WARMING AND DRYING. BOTH MODELS CONTINUE
TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO SUN WITH
SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS SLIGHTLY TO
OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY LITTLE CHANCES
FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING PEAK HEATING.
THE FORECAST REALLY BECOMES MURKY ON SUN AND MON. BOTH MODELS PLOW
THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS HAPPENS WE WILL
SEE MORE TERRAIN DRIVE SHOWERS AND PERHAPS STORMS. BOTH MODELS
HAVE BEEN INCONSISTENT AND FOR NOW WILL NOT ADD ANY SHOWERS TO THE
FORECAST UNTIL THERE IS BETTER CONTINUITY AND CONSISTENCY.

AS FOR THE STRATUS...DO NOT SEE MUCH CHANGE FOR THE NEXT SEVERAL
DAYS. THE FORECAST HAS BEEN BASED LARGELY ON PERSISTENCE. BOUNDARY
LAYER HUMIDITY FIELDS REMAIN HIGH WITH NORTH FLOW PUMPING MARINE
AIR ONSHORE EACH AND EVERY DAY THIS WEEK. DRY SLOTS OFF CAPE BLANCO
MAY SPREAD SOUTHWARD TO PT ST GEORGE FOR AFTERNOON CLEARING THERE.
OTHERWISE EXPECT LOW CLOUDS TO PERSIST THROUGH MOST OF THE DAY IN
MOST AREAS.

&&

.AVIATION...OVERNIGHT AND EARLY MORNING CIGS HAVE BEEN BOUNCING
BETWEEN MVFR AND VFR WHILE VSBYS HAVE REMAINED ABOVE 3SM. THIS
SHOULD CONTINUE THROUGH THE MORNING HOURS BEFORE LIFTING BY LATE
MORNING. EXPECT SOME BETTER CLEARING AT THE COASTAL TERMINALS THIS
AFTERNOON BUT AS HAS BEEN THE CASE FOR THE LAST WEEK CLOUDS WILL
FILL IN AGAIN BY EARLY EVENING. INTERIOR AREAS SHOULD SEE VFR
CONDITIONS AGAIN TODAY HOWEVER AN ISOLATED SHOWER IS STILL POSSIBLE
BRIEFLY REDUCING TERMINAL CONDITIONS.

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL PICK UP
AGAIN THIS AFTERNOON AND EVENING CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD WAVES GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND
STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24-36 HOURS DUE TO AN
OFFSHORE HIGH PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO
CHANGE TOWARD WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES
OVER THE REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PDT THIS MORNING FOR PZZ450.

     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 AM PDT EARLY THIS MORNING FOR
     PZZ455.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 251044
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 AM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THIS AFTERNOON AND
EVENING. OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL.
LOW CLOUDS WILL CONTINUE TO COVER COASTAL AREAS WITH ONLY
PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...A SHORT-WAVE TROUGH IN NORTHWEST FLOW ALOFT WILL
CLIP THE REGION TODAY. THIS TROUGH WILL GENERATE SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS PRIMARILY IN TRINITY COUNTY THIS
AFTERNOON AND EVENING. THE INCOMING SHORT WAVE IS FAIRLY DRY
WITH NO DEEP LAYER MOISTURE TRANSPORT INTO THE AREA. PWATS WILL
STILL BE SUFFICIENTLY HIGH FOR SHOWER AND THUNDERSTORM ACTIVITY
THIS AFTERNOON AND EVENING. NW FLOW ALOFT WILL QUICKLY PUSH THE
STORMS OFF TO THE SOUTHEAST. THE QUICK STORM MOTION WILL MITIGATE
THE THREAT OF ISOLATED HEAVY RAIN. THE PWATS ARE FORECAST TO BE
NEAR 1 INCH TODAY. MOST OF THAT IS IN THE LOWEST PORTION OF THE
ATMOSPHERE BELOW ABOUT 10KFT. THERE IS STILL AN OUTSIDE CHANCE FOR
A BRIEF HEAVY DOWNPOUR...ESPECIALLY AROUND THE HORN AND THE YOLLA
BOLLYS.

NW CYCLONIC FLOW ALOFT WILL LINGER OVER THE AREA ON TUE.
ANOTHER VORT LOBE WILL CLIP THE AREA AND PROBABLY GENERATE
MORE ISOLATED OR SCATTERED SHOWERS IN TRINITY COUNTY.
THE PROFILES ARE NOT LOOKING AS FAVORABLE FOR DEEP CONVECTION ON
TUE. A FEW STORMS MAY STILL DEVELOP ACROSS THE HIGHER TERRAIN AND
NEAR THE PERIPHERY OF TRINITY COUNTY...SO WILL LEAVE THEM IN THE
FORECAST. WEAK INSTABILITY WILL LINGER INTO WED AS THE UPPER LOW
PARKED OVER THE PAC NW EXITS TO THE EAST. THERE MAY STILL BE A FEW
WEAK SHOWERS OVER THE MOUNTAINS OF EASTERN TRINITY COUNTY.
CONDITIONS SHOULD STABILIZE AND DRY OUT ON THU AS A RIDGE ALOFT
BUILDS OVER THE AREA. MAX TEMPERATURES WILL LIKELY WARM UP IN THE
INTERIOR ON THU...WITH SOME SITES HITTING THE LOWER TO MID 90S.
THE FLOW WILL REMAIN ONSHORE AND STRATUS WILL PROBABLY STILL PUSH
INTO THE COASTAL RIVER VALLEYS AND OFFSET THE WARMING POTENTIAL
THERE. THE LATEST RUN OF THE GFS AND ECMWF HAS THE RIDGE HOLDING
INTO FRIDAY FOR CONTINUED WARMING AND DRYING. BOTH MODELS CONTINUE
TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO SUN WITH
SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS SLIGHTLY TO
OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY LITTLE CHANCES
FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING PEAK HEATING.
THE FORECAST REALLY BECOMES MURKY ON SUN AND MON. BOTH MODELS PLOW
THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS HAPPENS WE WILL
SEE MORE TERRAIN DRIVE SHOWERS AND PERHAPS STORMS. BOTH MODELS
HAVE BEEN INCONSISTENT AND FOR NOW WILL NOT ADD ANY SHOWERS TO THE
FORECAST UNTIL THERE IS BETTER CONTINUITY AND CONSISTENCY.

AS FOR THE STRATUS...DO NOT SEE MUCH CHANGE FOR THE NEXT SEVERAL
DAYS. THE FORECAST HAS BEEN BASED LARGELY ON PERSISTENCE. BOUNDARY
LAYER HUMIDITY FIELDS REMAIN HIGH WITH NORTH FLOW PUMPING MARINE
AIR ONSHORE EACH AND EVERY DAY THIS WEEK. DRY SLOTS OFF CAPE BLANCO
MAY SPREAD SOUTHWARD TO PT ST GEORGE FOR AFTERNOON CLEARING THERE.
OTHERWISE EXPECT LOW CLOUDS TO PERSIST THROUGH MOST OF THE DAY IN
MOST AREAS.

&&

.AVIATION...OVERNIGHT AND EARLY MORNING CIGS HAVE BEEN BOUNCING
BETWEEN MVFR AND VFR WHILE VSBYS HAVE REMAINED ABOVE 3SM. THIS
SHOULD CONTINUE THROUGH THE MORNING HOURS BEFORE LIFTING BY LATE
MORNING. EXPECT SOME BETTER CLEARING AT THE COASTAL TERMINALS THIS
AFTERNOON BUT AS HAS BEEN THE CASE FOR THE LAST WEEK CLOUDS WILL
FILL IN AGAIN BY EARLY EVENING. INTERIOR AREAS SHOULD SEE VFR
CONDITIONS AGAIN TODAY HOWEVER AN ISOLATED SHOWER IS STILL POSSIBLE
BRIEFLY REDUCING TERMINAL CONDITIONS.

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL PICK UP
AGAIN THIS AFTERNOON AND EVENING CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD WAVES GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND
STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24-36 HOURS DUE TO AN
OFFSHORE HIGH PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO
CHANGE TOWARD WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES
OVER THE REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PDT THIS MORNING FOR PZZ450.

     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 AM PDT EARLY THIS MORNING FOR
     PZZ455.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 251044
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 AM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THIS AFTERNOON AND
EVENING. OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL.
LOW CLOUDS WILL CONTINUE TO COVER COASTAL AREAS WITH ONLY
PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...A SHORT-WAVE TROUGH IN NORTHWEST FLOW ALOFT WILL
CLIP THE REGION TODAY. THIS TROUGH WILL GENERATE SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS PRIMARILY IN TRINITY COUNTY THIS
AFTERNOON AND EVENING. THE INCOMING SHORT WAVE IS FAIRLY DRY
WITH NO DEEP LAYER MOISTURE TRANSPORT INTO THE AREA. PWATS WILL
STILL BE SUFFICIENTLY HIGH FOR SHOWER AND THUNDERSTORM ACTIVITY
THIS AFTERNOON AND EVENING. NW FLOW ALOFT WILL QUICKLY PUSH THE
STORMS OFF TO THE SOUTHEAST. THE QUICK STORM MOTION WILL MITIGATE
THE THREAT OF ISOLATED HEAVY RAIN. THE PWATS ARE FORECAST TO BE
NEAR 1 INCH TODAY. MOST OF THAT IS IN THE LOWEST PORTION OF THE
ATMOSPHERE BELOW ABOUT 10KFT. THERE IS STILL AN OUTSIDE CHANCE FOR
A BRIEF HEAVY DOWNPOUR...ESPECIALLY AROUND THE HORN AND THE YOLLA
BOLLYS.

NW CYCLONIC FLOW ALOFT WILL LINGER OVER THE AREA ON TUE.
ANOTHER VORT LOBE WILL CLIP THE AREA AND PROBABLY GENERATE
MORE ISOLATED OR SCATTERED SHOWERS IN TRINITY COUNTY.
THE PROFILES ARE NOT LOOKING AS FAVORABLE FOR DEEP CONVECTION ON
TUE. A FEW STORMS MAY STILL DEVELOP ACROSS THE HIGHER TERRAIN AND
NEAR THE PERIPHERY OF TRINITY COUNTY...SO WILL LEAVE THEM IN THE
FORECAST. WEAK INSTABILITY WILL LINGER INTO WED AS THE UPPER LOW
PARKED OVER THE PAC NW EXITS TO THE EAST. THERE MAY STILL BE A FEW
WEAK SHOWERS OVER THE MOUNTAINS OF EASTERN TRINITY COUNTY.
CONDITIONS SHOULD STABILIZE AND DRY OUT ON THU AS A RIDGE ALOFT
BUILDS OVER THE AREA. MAX TEMPERATURES WILL LIKELY WARM UP IN THE
INTERIOR ON THU...WITH SOME SITES HITTING THE LOWER TO MID 90S.
THE FLOW WILL REMAIN ONSHORE AND STRATUS WILL PROBABLY STILL PUSH
INTO THE COASTAL RIVER VALLEYS AND OFFSET THE WARMING POTENTIAL
THERE. THE LATEST RUN OF THE GFS AND ECMWF HAS THE RIDGE HOLDING
INTO FRIDAY FOR CONTINUED WARMING AND DRYING. BOTH MODELS CONTINUE
TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO SUN WITH
SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS SLIGHTLY TO
OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY LITTLE CHANCES
FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING PEAK HEATING.
THE FORECAST REALLY BECOMES MURKY ON SUN AND MON. BOTH MODELS PLOW
THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS HAPPENS WE WILL
SEE MORE TERRAIN DRIVE SHOWERS AND PERHAPS STORMS. BOTH MODELS
HAVE BEEN INCONSISTENT AND FOR NOW WILL NOT ADD ANY SHOWERS TO THE
FORECAST UNTIL THERE IS BETTER CONTINUITY AND CONSISTENCY.

AS FOR THE STRATUS...DO NOT SEE MUCH CHANGE FOR THE NEXT SEVERAL
DAYS. THE FORECAST HAS BEEN BASED LARGELY ON PERSISTENCE. BOUNDARY
LAYER HUMIDITY FIELDS REMAIN HIGH WITH NORTH FLOW PUMPING MARINE
AIR ONSHORE EACH AND EVERY DAY THIS WEEK. DRY SLOTS OFF CAPE BLANCO
MAY SPREAD SOUTHWARD TO PT ST GEORGE FOR AFTERNOON CLEARING THERE.
OTHERWISE EXPECT LOW CLOUDS TO PERSIST THROUGH MOST OF THE DAY IN
MOST AREAS.

&&

.AVIATION...OVERNIGHT AND EARLY MORNING CIGS HAVE BEEN BOUNCING
BETWEEN MVFR AND VFR WHILE VSBYS HAVE REMAINED ABOVE 3SM. THIS
SHOULD CONTINUE THROUGH THE MORNING HOURS BEFORE LIFTING BY LATE
MORNING. EXPECT SOME BETTER CLEARING AT THE COASTAL TERMINALS THIS
AFTERNOON BUT AS HAS BEEN THE CASE FOR THE LAST WEEK CLOUDS WILL
FILL IN AGAIN BY EARLY EVENING. INTERIOR AREAS SHOULD SEE VFR
CONDITIONS AGAIN TODAY HOWEVER AN ISOLATED SHOWER IS STILL POSSIBLE
BRIEFLY REDUCING TERMINAL CONDITIONS.

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL PICK UP
AGAIN THIS AFTERNOON AND EVENING CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD WAVES GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND
STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24-36 HOURS DUE TO AN
OFFSHORE HIGH PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO
CHANGE TOWARD WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES
OVER THE REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PDT THIS MORNING FOR PZZ450.

     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 AM PDT EARLY THIS MORNING FOR
     PZZ455.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 251044
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
344 AM PDT MON MAY 25 2015

.SYNOPSIS...AN UPPER TROUGH WILL BRING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS TO TRINITY COUNTY THIS AFTERNOON AND
EVENING. OTHERWISE DRY WEATHER WILL CONTINUE TO PREVAIL.
LOW CLOUDS WILL CONTINUE TO COVER COASTAL AREAS WITH ONLY
PARTIAL AFTERNOON CLEARING.

&&

.DISCUSSION...A SHORT-WAVE TROUGH IN NORTHWEST FLOW ALOFT WILL
CLIP THE REGION TODAY. THIS TROUGH WILL GENERATE SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS PRIMARILY IN TRINITY COUNTY THIS
AFTERNOON AND EVENING. THE INCOMING SHORT WAVE IS FAIRLY DRY
WITH NO DEEP LAYER MOISTURE TRANSPORT INTO THE AREA. PWATS WILL
STILL BE SUFFICIENTLY HIGH FOR SHOWER AND THUNDERSTORM ACTIVITY
THIS AFTERNOON AND EVENING. NW FLOW ALOFT WILL QUICKLY PUSH THE
STORMS OFF TO THE SOUTHEAST. THE QUICK STORM MOTION WILL MITIGATE
THE THREAT OF ISOLATED HEAVY RAIN. THE PWATS ARE FORECAST TO BE
NEAR 1 INCH TODAY. MOST OF THAT IS IN THE LOWEST PORTION OF THE
ATMOSPHERE BELOW ABOUT 10KFT. THERE IS STILL AN OUTSIDE CHANCE FOR
A BRIEF HEAVY DOWNPOUR...ESPECIALLY AROUND THE HORN AND THE YOLLA
BOLLYS.

NW CYCLONIC FLOW ALOFT WILL LINGER OVER THE AREA ON TUE.
ANOTHER VORT LOBE WILL CLIP THE AREA AND PROBABLY GENERATE
MORE ISOLATED OR SCATTERED SHOWERS IN TRINITY COUNTY.
THE PROFILES ARE NOT LOOKING AS FAVORABLE FOR DEEP CONVECTION ON
TUE. A FEW STORMS MAY STILL DEVELOP ACROSS THE HIGHER TERRAIN AND
NEAR THE PERIPHERY OF TRINITY COUNTY...SO WILL LEAVE THEM IN THE
FORECAST. WEAK INSTABILITY WILL LINGER INTO WED AS THE UPPER LOW
PARKED OVER THE PAC NW EXITS TO THE EAST. THERE MAY STILL BE A FEW
WEAK SHOWERS OVER THE MOUNTAINS OF EASTERN TRINITY COUNTY.
CONDITIONS SHOULD STABILIZE AND DRY OUT ON THU AS A RIDGE ALOFT
BUILDS OVER THE AREA. MAX TEMPERATURES WILL LIKELY WARM UP IN THE
INTERIOR ON THU...WITH SOME SITES HITTING THE LOWER TO MID 90S.
THE FLOW WILL REMAIN ONSHORE AND STRATUS WILL PROBABLY STILL PUSH
INTO THE COASTAL RIVER VALLEYS AND OFFSET THE WARMING POTENTIAL
THERE. THE LATEST RUN OF THE GFS AND ECMWF HAS THE RIDGE HOLDING
INTO FRIDAY FOR CONTINUED WARMING AND DRYING. BOTH MODELS CONTINUE
TO SHOW ANOTHER TROUGH OR CLOSED LOW APPROACHING SAT INTO SUN WITH
SOUTHWEST FLOW ALOFT DEVELOPING AS THE RIDGE SHIFTS SLIGHTLY TO
OUR EAST. THIS SW FLOW IS TYPICALLY DRY WITH VERY LITTLE CHANCES
FOR ANYTHING MORE THAN SOME CLOUD BUILDUPS DURING PEAK HEATING.
THE FORECAST REALLY BECOMES MURKY ON SUN AND MON. BOTH MODELS PLOW
THE TROUGH INTO THE AREA BY 12Z MONDAY. IF THIS HAPPENS WE WILL
SEE MORE TERRAIN DRIVE SHOWERS AND PERHAPS STORMS. BOTH MODELS
HAVE BEEN INCONSISTENT AND FOR NOW WILL NOT ADD ANY SHOWERS TO THE
FORECAST UNTIL THERE IS BETTER CONTINUITY AND CONSISTENCY.

AS FOR THE STRATUS...DO NOT SEE MUCH CHANGE FOR THE NEXT SEVERAL
DAYS. THE FORECAST HAS BEEN BASED LARGELY ON PERSISTENCE. BOUNDARY
LAYER HUMIDITY FIELDS REMAIN HIGH WITH NORTH FLOW PUMPING MARINE
AIR ONSHORE EACH AND EVERY DAY THIS WEEK. DRY SLOTS OFF CAPE BLANCO
MAY SPREAD SOUTHWARD TO PT ST GEORGE FOR AFTERNOON CLEARING THERE.
OTHERWISE EXPECT LOW CLOUDS TO PERSIST THROUGH MOST OF THE DAY IN
MOST AREAS.

&&

.AVIATION...OVERNIGHT AND EARLY MORNING CIGS HAVE BEEN BOUNCING
BETWEEN MVFR AND VFR WHILE VSBYS HAVE REMAINED ABOVE 3SM. THIS
SHOULD CONTINUE THROUGH THE MORNING HOURS BEFORE LIFTING BY LATE
MORNING. EXPECT SOME BETTER CLEARING AT THE COASTAL TERMINALS THIS
AFTERNOON BUT AS HAS BEEN THE CASE FOR THE LAST WEEK CLOUDS WILL
FILL IN AGAIN BY EARLY EVENING. INTERIOR AREAS SHOULD SEE VFR
CONDITIONS AGAIN TODAY HOWEVER AN ISOLATED SHOWER IS STILL POSSIBLE
BRIEFLY REDUCING TERMINAL CONDITIONS.

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL PICK UP
AGAIN THIS AFTERNOON AND EVENING CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD WAVES GENERALLY 8 TO 10 FT. THE NORTHERLY WINDS AND
STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24-36 HOURS DUE TO AN
OFFSHORE HIGH PRESSURE SYSTEM STRENGTHENING. THE PATTERN BEGINS TO
CHANGE TOWARD WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES
OVER THE REGION...DIMINISHING THE GRADIENT AND RESULTING WINDS.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PDT THIS MORNING FOR PZZ450.

     SMALL CRAFT ADVISORY UNTIL 11 PM PDT TUESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 AM PDT EARLY THIS MORNING FOR
     PZZ455.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 251040
AFDEKA

WRKJEF

ZCZC SFOWRKJEF 000
TTAA00 KEKA 241034

.SYNOPSIS...

&&

.DISCUSSION...


.AVIATION...AN UPPER TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO
MAINTAIN THE DEEP MARINE LAYER, SO CIGS ALONG THE COAST CONTINUE TO
HOVER BETWEEN MVFR AND THE VFR RANGE THROUGH THE MORNING HOURS THEN
CIGS ARE EXPECTED TO LIFT NICELY IN THE AFTERNOON AFTERNOON VFR
LIKELY.  CLOUDS ARE EXPECTED TO PENETRATE DEEPER INTO THE COASTAL
RIVER VALLEYS, BRINGING DOWN CIGS AT FOT AND OTHER SIMILAR
LOCATIONS. INTERIOR VALLEYS SHOULD REMAIN VFR.


.MARINE...THE UPPER LEVEL PATTERN IS EXPECTED TO CHANGE BEGINNNING
TODAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...THE NET EFFECT TO THE MARINE CONDITIONS WILL BE THE
CONTINUATION OF A DIMINISHING  COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE THE NORTHERLIES TO DIMINISH AND THE CORRESPONDING SHORT
PERIOD WIND CHOP TO SUBSIDE.




000
FXUS66 KEKA 251040
AFDEKA

WRKJEF

ZCZC SFOWRKJEF 000
TTAA00 KEKA 241034

.SYNOPSIS...

&&

.DISCUSSION...


.AVIATION...AN UPPER TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO
MAINTAIN THE DEEP MARINE LAYER, SO CIGS ALONG THE COAST CONTINUE TO
HOVER BETWEEN MVFR AND THE VFR RANGE THROUGH THE MORNING HOURS THEN
CIGS ARE EXPECTED TO LIFT NICELY IN THE AFTERNOON AFTERNOON VFR
LIKELY.  CLOUDS ARE EXPECTED TO PENETRATE DEEPER INTO THE COASTAL
RIVER VALLEYS, BRINGING DOWN CIGS AT FOT AND OTHER SIMILAR
LOCATIONS. INTERIOR VALLEYS SHOULD REMAIN VFR.


.MARINE...THE UPPER LEVEL PATTERN IS EXPECTED TO CHANGE BEGINNNING
TODAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...THE NET EFFECT TO THE MARINE CONDITIONS WILL BE THE
CONTINUATION OF A DIMINISHING  COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE THE NORTHERLIES TO DIMINISH AND THE CORRESPONDING SHORT
PERIOD WIND CHOP TO SUBSIDE.





000
FXUS66 KEKA 242202
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
302 PM PDT SUN MAY 24 2015

.SYNOPSIS...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. AN UPPER TROUGH WILL BRING A CHANCE OF SHOWERS
AND THUNDERSTORMS TO TRINITY COUNTY ON MONDAY. THE COAST CAN
EXPECT OVERNIGHT AND MORNING CLOUDS WITH PARTIAL CLEARING EACH
AFTERNOON.

&&

.DISCUSSION...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. CLOUDS WILL BUILD ALONG THE COAST. AN UPPER
TROUGH WILL MOVE ACROSS THE PACIFIC NW ON MONDAY WITH THE TRAILING
EDGE CLIPPING FAR NORTHERN CALIFORNIA. ALL THE
MODELS...GFS...ECMWF AND NAM12 INDICATE PRECIP DEVELOPING WITH
DAYTIME HEATING OVER TRINITY COUNTY. PROFILES LOOK BETTER FOR
STORMS WITH MUCH LESS CAPPING AND HIGHER CAPE ACROSS THE EASTERN
PORTION OF TRINITY COUNTY. MOISTURE IS NOT VERY DEEP SO THERE MAY
NOT BE MUCH IN THE WAY OF CLOUD COVER INITIALLY. PWATS APPROACH 1
INCH BUT NW FLOW ALOFT WILL CARRY THE STORMS QUICKLY TO THE
SOUTHEAST. ISOLATED HEAVY RAIN WILL BE POSSIBLE.

RIDGING OVER THE AREA ON WED AND THU SHOULD BRING DRYING...WARMING
AND INCREASING STABILITY IN THE INTERIOR. BASED ON THE SURFACE
PRESSURE PATTERN AND THE DGEX BOUNDARY LAYER HUMIDITY...COASTAL
AREAS WILL MOST LIKELY SEE LOW CLOUDS AND PERHAPS SOME FOG EACH
DAY AND NIGHT. THE MODELS HAVE BEEN CONSISTENTLY SHOWING FAIRLY
DRY SOUTHWEST FLOW ALOFT AROUND MID WEEK. THE GFS DOES SHOW
CONVECTIVE PARAMETERS FAVORABLE FOR ISOLATED CONVECTION OVER THE
HIGHER TERRAIN ON FRI AND SAT AS A COUPLE OF SHORT WAVES MOVE
TOWARD THE AREA AND INTO THE RIDGE. CONFIDENCE IS NOT HIGH ENOUGH
AT THIS POINT TO ADD STORMS THAT FAR OUT...SO WILL LEAVE THE
FORECAST DRY.

&&

.AVIATION...AFTER A BRIEF CLEARING ALONG THE COAST THIS
AFTERNOON, LOOK FOR LOW CLOUDS TO RETURN THIS EVENING. AN UPPER
TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO DEEPEN THE MARINE
LAYER, SO CIGS ALONG THE COAST SHOULD BE IN THE 007 TO 012 RANGE.
IF THE SURFACE RIDGE HANGS ON A BIT STRONGER CIGS WILL DROP BELOW
005. CIGS ARE EXPECTED TO LIFT NICELY ON MONDAY WITH THE
POSSIBILITY OF AFTERNOON VFR. THE INTERIOR TONIGHT WILL BE
INTERESTING WITH THE DEEPENING MARINE LAYER. CLOUDS ARE EXPECTED
TO PENETRATE DEEPER INTO THE COASTAL RIVER VALLEYS, BRINGING DOWN
CIGS AT FOT AND OTHER SIMILAR LOCATIONS. THE MAIN ISSUE WILL BE
WHETHER THE LOW CLOUDS WILL MAKE IT INTO UKI. SO LONG AS THE
MARINE LAYER DEEPENS AS EXPECTED, WE SHOULD SEE THE LOW CLOUDS
MAKE IT IN. WENT AHEAD AND PUT THIS IN THE TAFS BUT AT THIS POINT
ONLY MODERATELY CONFIDENT IN CIGS COMING IN. BFG

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS AFTERNOON AND EVENING, CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD STEEP WAVES, GENERALLY AT 7 TO 10 FT. THE NORTHERLY
WINDS AND STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24 HOURS DUE TO
AN OFFSHORE HIGH PRESSURE SYSTEM OVER THE EASTERN PACIFIC. THE
PATTERN BEGINS TO CHANGE DURING THE FIRST HALF OF THE WEEK AS AN
UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE LOWING WINDS AND STEEP SEAS. BFG/DJB

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...

SMALL CRAFT ADVISORY FOR PZZ450-455-470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 242202
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
302 PM PDT SUN MAY 24 2015

.SYNOPSIS...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. AN UPPER TROUGH WILL BRING A CHANCE OF SHOWERS
AND THUNDERSTORMS TO TRINITY COUNTY ON MONDAY. THE COAST CAN
EXPECT OVERNIGHT AND MORNING CLOUDS WITH PARTIAL CLEARING EACH
AFTERNOON.

&&

.DISCUSSION...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. CLOUDS WILL BUILD ALONG THE COAST. AN UPPER
TROUGH WILL MOVE ACROSS THE PACIFIC NW ON MONDAY WITH THE TRAILING
EDGE CLIPPING FAR NORTHERN CALIFORNIA. ALL THE
MODELS...GFS...ECMWF AND NAM12 INDICATE PRECIP DEVELOPING WITH
DAYTIME HEATING OVER TRINITY COUNTY. PROFILES LOOK BETTER FOR
STORMS WITH MUCH LESS CAPPING AND HIGHER CAPE ACROSS THE EASTERN
PORTION OF TRINITY COUNTY. MOISTURE IS NOT VERY DEEP SO THERE MAY
NOT BE MUCH IN THE WAY OF CLOUD COVER INITIALLY. PWATS APPROACH 1
INCH BUT NW FLOW ALOFT WILL CARRY THE STORMS QUICKLY TO THE
SOUTHEAST. ISOLATED HEAVY RAIN WILL BE POSSIBLE.

RIDGING OVER THE AREA ON WED AND THU SHOULD BRING DRYING...WARMING
AND INCREASING STABILITY IN THE INTERIOR. BASED ON THE SURFACE
PRESSURE PATTERN AND THE DGEX BOUNDARY LAYER HUMIDITY...COASTAL
AREAS WILL MOST LIKELY SEE LOW CLOUDS AND PERHAPS SOME FOG EACH
DAY AND NIGHT. THE MODELS HAVE BEEN CONSISTENTLY SHOWING FAIRLY
DRY SOUTHWEST FLOW ALOFT AROUND MID WEEK. THE GFS DOES SHOW
CONVECTIVE PARAMETERS FAVORABLE FOR ISOLATED CONVECTION OVER THE
HIGHER TERRAIN ON FRI AND SAT AS A COUPLE OF SHORT WAVES MOVE
TOWARD THE AREA AND INTO THE RIDGE. CONFIDENCE IS NOT HIGH ENOUGH
AT THIS POINT TO ADD STORMS THAT FAR OUT...SO WILL LEAVE THE
FORECAST DRY.

&&

.AVIATION...AFTER A BRIEF CLEARING ALONG THE COAST THIS
AFTERNOON, LOOK FOR LOW CLOUDS TO RETURN THIS EVENING. AN UPPER
TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO DEEPEN THE MARINE
LAYER, SO CIGS ALONG THE COAST SHOULD BE IN THE 007 TO 012 RANGE.
IF THE SURFACE RIDGE HANGS ON A BIT STRONGER CIGS WILL DROP BELOW
005. CIGS ARE EXPECTED TO LIFT NICELY ON MONDAY WITH THE
POSSIBILITY OF AFTERNOON VFR. THE INTERIOR TONIGHT WILL BE
INTERESTING WITH THE DEEPENING MARINE LAYER. CLOUDS ARE EXPECTED
TO PENETRATE DEEPER INTO THE COASTAL RIVER VALLEYS, BRINGING DOWN
CIGS AT FOT AND OTHER SIMILAR LOCATIONS. THE MAIN ISSUE WILL BE
WHETHER THE LOW CLOUDS WILL MAKE IT INTO UKI. SO LONG AS THE
MARINE LAYER DEEPENS AS EXPECTED, WE SHOULD SEE THE LOW CLOUDS
MAKE IT IN. WENT AHEAD AND PUT THIS IN THE TAFS BUT AT THIS POINT
ONLY MODERATELY CONFIDENT IN CIGS COMING IN. BFG

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS AFTERNOON AND EVENING, CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD STEEP WAVES, GENERALLY AT 7 TO 10 FT. THE NORTHERLY
WINDS AND STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24 HOURS DUE TO
AN OFFSHORE HIGH PRESSURE SYSTEM OVER THE EASTERN PACIFIC. THE
PATTERN BEGINS TO CHANGE DURING THE FIRST HALF OF THE WEEK AS AN
UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE LOWING WINDS AND STEEP SEAS. BFG/DJB

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...

SMALL CRAFT ADVISORY FOR PZZ450-455-470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 242202
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
302 PM PDT SUN MAY 24 2015

.SYNOPSIS...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. AN UPPER TROUGH WILL BRING A CHANCE OF SHOWERS
AND THUNDERSTORMS TO TRINITY COUNTY ON MONDAY. THE COAST CAN
EXPECT OVERNIGHT AND MORNING CLOUDS WITH PARTIAL CLEARING EACH
AFTERNOON.

&&

.DISCUSSION...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. CLOUDS WILL BUILD ALONG THE COAST. AN UPPER
TROUGH WILL MOVE ACROSS THE PACIFIC NW ON MONDAY WITH THE TRAILING
EDGE CLIPPING FAR NORTHERN CALIFORNIA. ALL THE
MODELS...GFS...ECMWF AND NAM12 INDICATE PRECIP DEVELOPING WITH
DAYTIME HEATING OVER TRINITY COUNTY. PROFILES LOOK BETTER FOR
STORMS WITH MUCH LESS CAPPING AND HIGHER CAPE ACROSS THE EASTERN
PORTION OF TRINITY COUNTY. MOISTURE IS NOT VERY DEEP SO THERE MAY
NOT BE MUCH IN THE WAY OF CLOUD COVER INITIALLY. PWATS APPROACH 1
INCH BUT NW FLOW ALOFT WILL CARRY THE STORMS QUICKLY TO THE
SOUTHEAST. ISOLATED HEAVY RAIN WILL BE POSSIBLE.

RIDGING OVER THE AREA ON WED AND THU SHOULD BRING DRYING...WARMING
AND INCREASING STABILITY IN THE INTERIOR. BASED ON THE SURFACE
PRESSURE PATTERN AND THE DGEX BOUNDARY LAYER HUMIDITY...COASTAL
AREAS WILL MOST LIKELY SEE LOW CLOUDS AND PERHAPS SOME FOG EACH
DAY AND NIGHT. THE MODELS HAVE BEEN CONSISTENTLY SHOWING FAIRLY
DRY SOUTHWEST FLOW ALOFT AROUND MID WEEK. THE GFS DOES SHOW
CONVECTIVE PARAMETERS FAVORABLE FOR ISOLATED CONVECTION OVER THE
HIGHER TERRAIN ON FRI AND SAT AS A COUPLE OF SHORT WAVES MOVE
TOWARD THE AREA AND INTO THE RIDGE. CONFIDENCE IS NOT HIGH ENOUGH
AT THIS POINT TO ADD STORMS THAT FAR OUT...SO WILL LEAVE THE
FORECAST DRY.

&&

.AVIATION...AFTER A BRIEF CLEARING ALONG THE COAST THIS
AFTERNOON, LOOK FOR LOW CLOUDS TO RETURN THIS EVENING. AN UPPER
TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO DEEPEN THE MARINE
LAYER, SO CIGS ALONG THE COAST SHOULD BE IN THE 007 TO 012 RANGE.
IF THE SURFACE RIDGE HANGS ON A BIT STRONGER CIGS WILL DROP BELOW
005. CIGS ARE EXPECTED TO LIFT NICELY ON MONDAY WITH THE
POSSIBILITY OF AFTERNOON VFR. THE INTERIOR TONIGHT WILL BE
INTERESTING WITH THE DEEPENING MARINE LAYER. CLOUDS ARE EXPECTED
TO PENETRATE DEEPER INTO THE COASTAL RIVER VALLEYS, BRINGING DOWN
CIGS AT FOT AND OTHER SIMILAR LOCATIONS. THE MAIN ISSUE WILL BE
WHETHER THE LOW CLOUDS WILL MAKE IT INTO UKI. SO LONG AS THE
MARINE LAYER DEEPENS AS EXPECTED, WE SHOULD SEE THE LOW CLOUDS
MAKE IT IN. WENT AHEAD AND PUT THIS IN THE TAFS BUT AT THIS POINT
ONLY MODERATELY CONFIDENT IN CIGS COMING IN. BFG

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS AFTERNOON AND EVENING, CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD STEEP WAVES, GENERALLY AT 7 TO 10 FT. THE NORTHERLY
WINDS AND STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24 HOURS DUE TO
AN OFFSHORE HIGH PRESSURE SYSTEM OVER THE EASTERN PACIFIC. THE
PATTERN BEGINS TO CHANGE DURING THE FIRST HALF OF THE WEEK AS AN
UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE LOWING WINDS AND STEEP SEAS. BFG/DJB

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...

SMALL CRAFT ADVISORY FOR PZZ450-455-470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 242202
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
302 PM PDT SUN MAY 24 2015

.SYNOPSIS...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. AN UPPER TROUGH WILL BRING A CHANCE OF SHOWERS
AND THUNDERSTORMS TO TRINITY COUNTY ON MONDAY. THE COAST CAN
EXPECT OVERNIGHT AND MORNING CLOUDS WITH PARTIAL CLEARING EACH
AFTERNOON.

&&

.DISCUSSION...DRY WEATHER WILL PREVAIL TONIGHT DUE TO HIGH PRESSURE
OVER THE REGION. CLOUDS WILL BUILD ALONG THE COAST. AN UPPER
TROUGH WILL MOVE ACROSS THE PACIFIC NW ON MONDAY WITH THE TRAILING
EDGE CLIPPING FAR NORTHERN CALIFORNIA. ALL THE
MODELS...GFS...ECMWF AND NAM12 INDICATE PRECIP DEVELOPING WITH
DAYTIME HEATING OVER TRINITY COUNTY. PROFILES LOOK BETTER FOR
STORMS WITH MUCH LESS CAPPING AND HIGHER CAPE ACROSS THE EASTERN
PORTION OF TRINITY COUNTY. MOISTURE IS NOT VERY DEEP SO THERE MAY
NOT BE MUCH IN THE WAY OF CLOUD COVER INITIALLY. PWATS APPROACH 1
INCH BUT NW FLOW ALOFT WILL CARRY THE STORMS QUICKLY TO THE
SOUTHEAST. ISOLATED HEAVY RAIN WILL BE POSSIBLE.

RIDGING OVER THE AREA ON WED AND THU SHOULD BRING DRYING...WARMING
AND INCREASING STABILITY IN THE INTERIOR. BASED ON THE SURFACE
PRESSURE PATTERN AND THE DGEX BOUNDARY LAYER HUMIDITY...COASTAL
AREAS WILL MOST LIKELY SEE LOW CLOUDS AND PERHAPS SOME FOG EACH
DAY AND NIGHT. THE MODELS HAVE BEEN CONSISTENTLY SHOWING FAIRLY
DRY SOUTHWEST FLOW ALOFT AROUND MID WEEK. THE GFS DOES SHOW
CONVECTIVE PARAMETERS FAVORABLE FOR ISOLATED CONVECTION OVER THE
HIGHER TERRAIN ON FRI AND SAT AS A COUPLE OF SHORT WAVES MOVE
TOWARD THE AREA AND INTO THE RIDGE. CONFIDENCE IS NOT HIGH ENOUGH
AT THIS POINT TO ADD STORMS THAT FAR OUT...SO WILL LEAVE THE
FORECAST DRY.

&&

.AVIATION...AFTER A BRIEF CLEARING ALONG THE COAST THIS
AFTERNOON, LOOK FOR LOW CLOUDS TO RETURN THIS EVENING. AN UPPER
TROUGH MOVING IN FROM THE NORTH IS EXPECTED TO DEEPEN THE MARINE
LAYER, SO CIGS ALONG THE COAST SHOULD BE IN THE 007 TO 012 RANGE.
IF THE SURFACE RIDGE HANGS ON A BIT STRONGER CIGS WILL DROP BELOW
005. CIGS ARE EXPECTED TO LIFT NICELY ON MONDAY WITH THE
POSSIBILITY OF AFTERNOON VFR. THE INTERIOR TONIGHT WILL BE
INTERESTING WITH THE DEEPENING MARINE LAYER. CLOUDS ARE EXPECTED
TO PENETRATE DEEPER INTO THE COASTAL RIVER VALLEYS, BRINGING DOWN
CIGS AT FOT AND OTHER SIMILAR LOCATIONS. THE MAIN ISSUE WILL BE
WHETHER THE LOW CLOUDS WILL MAKE IT INTO UKI. SO LONG AS THE
MARINE LAYER DEEPENS AS EXPECTED, WE SHOULD SEE THE LOW CLOUDS
MAKE IT IN. WENT AHEAD AND PUT THIS IN THE TAFS BUT AT THIS POINT
ONLY MODERATELY CONFIDENT IN CIGS COMING IN. BFG

&&

.MARINE...PRESSURE GRADIENT DRIVEN NORTHERLY WINDS WILL CONTINUE
THIS AFTERNOON AND EVENING, CONTRIBUTING TO LOCALLY GENERATED
SHORT PERIOD STEEP WAVES, GENERALLY AT 7 TO 10 FT. THE NORTHERLY
WINDS AND STEEP SEAS WILL PERSIST AT LEAST ANOTHER 24 HOURS DUE TO
AN OFFSHORE HIGH PRESSURE SYSTEM OVER THE EASTERN PACIFIC. THE
PATTERN BEGINS TO CHANGE DURING THE FIRST HALF OF THE WEEK AS AN
UPPER LEVEL LOW PRESSURE SYSTEM MOVES OVER THE
REGION...DIMINISHING THE COASTAL PRESSURE GRADIENT WHICH WILL
CAUSE LOWING WINDS AND STEEP SEAS. BFG/DJB

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...

SMALL CRAFT ADVISORY FOR PZZ450-455-470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




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