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000
FXUS65 KBOI 312143
AFDBOI

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRST TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS





000
FXUS65 KBOI 312143
AFDBOI

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRST TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS




000
FXUS65 KBOI 312143
AFDBOI

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRST TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS




000
FXUS65 KBOI 312143
AFDBOI

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRST TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS





000
FXUS65 KBOI 312133
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRTS TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS





000
FXUS65 KBOI 312133
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRTS TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS




000
FXUS65 KBOI 312133
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRTS TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS




000
FXUS65 KBOI 312133
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
233 PM MST SAT JAN 31 2015

.SHORT TERM...FIRTS TROUGH IN THE NORTH PACIFIC WILL COME INLAND
BEGINNING SUNDAY BUT WILL HAVE TO MOVE THROUGH THE EVER-PRESENT
LONG WAVE RIDGE OVER WRN NORTH AMERICA.  PCPN WILL BEGIN IN OUR
NRN ZONES SUNDAY AFTERNOON WITH BULK OF IT SUNDAY EVENING IN
IDAHO ZONES NORTH OF THE SNAKE BASIN.  AFTER A SHORT BREAK MONDAY
MORNING A WETTER PACIFIC TROUGH WILL BRING MORE PCPN MONDAY
AFTERNOON TO ALL ZONES.  TEMPS TONIGHT AND SUNDAY WILL CHANGE
LITTLE FROM PREVIOUS DAYS...BUT SUNDAY NIGHT WILL BE MILDER AND
MONDAY A LITTLE COOLER DUE TO CLOUDS AND PCPN.  POPS WILL BE CLOSE
TO MET MOS...AS MAV MOS CONTINUES TO SHOW A DRY BIAS.  PATCHY FOG
AGAIN IN THE VALLEYS TONIGHT AND SUNDAY MORNING.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. MOIST WESTERLY FLOW WILL
BRING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST OREGON AND
SOUTHWEST IDAHO THROUGH WEDNESDAY. AN EXITING SHORT WAVE WILL KEEP
SHOWERS ACROSS SW IDAHO MONDAY NIGHT THROUGH TUESDAY. UPPER RIDGE
REBUILDS NORTH ACROSS THE AREA ON WEDNESDAY PUSHING THE MOISTURE TOP
OUT OF THE REGION. SNOW LEVELS WILL BE HIGH ENOUGH FOR BOTH RAIN AND
SNOW ACROSS MOUNTAIN VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS
PRAIRIE. DRIER THURSDAY WITH A PACIFIC RIDGE OVER THE AREA. RIDGE
WILL SHIFT EASTWARD ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE
BACK SIDE OF THE RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST
INTO THE AREA. EXPECT WET CONDITIONS FRIDAY NIGHT THROUGH EARLY
SUNDAY.

&&

.AVIATION...LIFR-IFR STRATUS AT KBNO AND KJER SHOULD DISSIPATE BY
22Z. IFR STRATUS SHOULD REBUILD AT KJER TONIGHT. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. HIGH CLOUDS
INCREASING EARLY SUNDAY MORNING COULD KEEP FOG/STRATUS FROM
REFORMING IN SOUTHEAST OREGON.  FOG IS STILL POSSIBLE IN THE
VALLEYS OF SW IDAHO. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 20 KTS
THROUGH 10K FT MSL. PATCHY LIFR FOG TO RETURN SUNDAY MORNING.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....JDS
AVIATION.....JDS





000
FXUS65 KBOI 311600
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
900 AM MST SAT JAN 31 2015

.DISCUSSION...MOST OF THE SNAKE BASIN IS FOG-FREE THIS MORNING
BUT PATCHES OF DENSE FOG EXIST NEAR MOUNTAIN HOME AND WEST OF
BOISE.  DENSE FOG IS NOT EXTENSIVE ENOUGH FOR AN ADVISORY.
STRATUS COVERS PARTS OF THE MAGIC VALLEY.  ABOVE THE VALLEYS SKIES
ARE MOSTLY CLEAR AND SUNNY WX IS EXPECTED ALL DAY AS HIGH PRESSURE
ALOFT REMAINS STRONG.  ON SUNDAY THE UPPER RIDGE WILL FLATTEN AND
CLOUDS WILL INCREASE IN MOIST WESTERLY FLOW ALOFT...LEADING TO RAIN
AND SNOW IN NRN MOUNTAINS AND A CHANCE IN SRN ZONES SUNDAY NIGHT AND
MONDAY...AS ALREADY FORECAST.  CURRENT FORECAST LOOKS GOOD...NO
UPDATES.

&&

.AVIATION...LIFR-IFR FOG AT KBNO AND EXPECTED IN SPOTS FROM KEUL
THROUGH KMUO. FOG IS NOT EXPECTED AT KBOI THIS MORNING. FOG AND IFR
STRATUS AT KJER LIKELY TO PERSIST UNTIL 19Z TODAY. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. NORTHWESTERLY
WINDS ALOFT WILL AVERAGE 20 KTS THROUGH 10K FT MSL. PATCHY LIFR FOG
LIKELY TO RETURN SUNDAY MORNING.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH SUNDAY...INVERSION AND HIGH PRESSURE
SURFACE/ALOFT WILL WEAKEN SUNDAY. INVERSION IN A SOMEWHAT DRY
AIRMASS /PW IN THE 10-20TH PERCENTILE/ WILL BRING MOSTLY CLEAR
SKIES TO THE MOUNTAINS AND ALLOW FOR LIMITED STRATUS AND PATCHY
DENSE FOG THIS MORNING. STRATUS AT 3 AM WAS ACROSS MUCH OF S
CENTRAL IDAHO...SW OWYHEE COUNTY AND IN PATCHES ACROSS CENTRAL
HARNEY AND NORTH BAKER COUNTIES. THE WEAKENING RIDGE WILL ALLOW
FOR SNOW LIKELY ACROSS THE WEST CENTRAL MOUNTAINS /RAIN BELOW 4K
FT MSL/ AND A CHANCE OF RAIN AND SNOW ALONG AND NW OF A LINE FROM
BANNER SUMMIT TO BOGUS BASIN THROUGH CAMBRIDGE TO BURNS /AS WELL
AS STEENS MTN/. WITH HALF-INCH PWS FORECAST BY THE GFS SUNDAY
AFTERNOON QPF/SNOW AMOUNTS MAY INCREASE AS THE EVENT GETS CLOSER
BUT FOR NOW KEPT QPF LIGHT AROUND 0.06 INCHES /OR AN INCH OF SNOW/
MAINLY ACROSS THE WEST CENTRAL MOUNTAINS.

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MOIST WESTERLY FLOW
WILL BE THE DOMINANT WEATHER FEATURE THROUGH THE FIRST HALF OF THE
WEEK - BRINGING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST
OREGON AND SOUTHWEST IDAHO. THE WETTEST PERIOD WILL LIKELY BE
MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON AS FLOW IS ENHANCED BY
AN EMBEDDED UPPER LEVEL SHORT WAVE. TEMPERATURES AND SNOW LEVELS
WILL BE HIGH ENOUGH FOR BOTH RAIN AND SNOW ACROSS MOUNTAIN
VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS PRAIRIE. DRIER
WEDNESDAY AND THURSDAY AS A PACIFIC RIDGE BUILDS INLAND...CUTTING
OFF THE MOISTURE SUPPLY TO OREGON/IDAHO. RIDGE WILL SHIFT EASTWARD
ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE BACK SIDE OF THE
RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST INTO THE AREA.
EXPECT WET CONDITIONS /ESPECIALLY ACROSS HIGHER TERRAIN/ FRIDAY
NIGHT THROUGH EARLY SUNDAY.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT




000
FXUS65 KBOI 311600
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
900 AM MST SAT JAN 31 2015

.DISCUSSION...MOST OF THE SNAKE BASIN IS FOG-FREE THIS MORNING
BUT PATCHES OF DENSE FOG EXIST NEAR MOUNTAIN HOME AND WEST OF
BOISE.  DENSE FOG IS NOT EXTENSIVE ENOUGH FOR AN ADVISORY.
STRATUS COVERS PARTS OF THE MAGIC VALLEY.  ABOVE THE VALLEYS SKIES
ARE MOSTLY CLEAR AND SUNNY WX IS EXPECTED ALL DAY AS HIGH PRESSURE
ALOFT REMAINS STRONG.  ON SUNDAY THE UPPER RIDGE WILL FLATTEN AND
CLOUDS WILL INCREASE IN MOIST WESTERLY FLOW ALOFT...LEADING TO RAIN
AND SNOW IN NRN MOUNTAINS AND A CHANCE IN SRN ZONES SUNDAY NIGHT AND
MONDAY...AS ALREADY FORECAST.  CURRENT FORECAST LOOKS GOOD...NO
UPDATES.

&&

.AVIATION...LIFR-IFR FOG AT KBNO AND EXPECTED IN SPOTS FROM KEUL
THROUGH KMUO. FOG IS NOT EXPECTED AT KBOI THIS MORNING. FOG AND IFR
STRATUS AT KJER LIKELY TO PERSIST UNTIL 19Z TODAY. OTHERWISE...VFR
CONDITIONS AND LIGHT W/NW SURFACE WINDS WILL PREVAIL. NORTHWESTERLY
WINDS ALOFT WILL AVERAGE 20 KTS THROUGH 10K FT MSL. PATCHY LIFR FOG
LIKELY TO RETURN SUNDAY MORNING.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH SUNDAY...INVERSION AND HIGH PRESSURE
SURFACE/ALOFT WILL WEAKEN SUNDAY. INVERSION IN A SOMEWHAT DRY
AIRMASS /PW IN THE 10-20TH PERCENTILE/ WILL BRING MOSTLY CLEAR
SKIES TO THE MOUNTAINS AND ALLOW FOR LIMITED STRATUS AND PATCHY
DENSE FOG THIS MORNING. STRATUS AT 3 AM WAS ACROSS MUCH OF S
CENTRAL IDAHO...SW OWYHEE COUNTY AND IN PATCHES ACROSS CENTRAL
HARNEY AND NORTH BAKER COUNTIES. THE WEAKENING RIDGE WILL ALLOW
FOR SNOW LIKELY ACROSS THE WEST CENTRAL MOUNTAINS /RAIN BELOW 4K
FT MSL/ AND A CHANCE OF RAIN AND SNOW ALONG AND NW OF A LINE FROM
BANNER SUMMIT TO BOGUS BASIN THROUGH CAMBRIDGE TO BURNS /AS WELL
AS STEENS MTN/. WITH HALF-INCH PWS FORECAST BY THE GFS SUNDAY
AFTERNOON QPF/SNOW AMOUNTS MAY INCREASE AS THE EVENT GETS CLOSER
BUT FOR NOW KEPT QPF LIGHT AROUND 0.06 INCHES /OR AN INCH OF SNOW/
MAINLY ACROSS THE WEST CENTRAL MOUNTAINS.

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MOIST WESTERLY FLOW
WILL BE THE DOMINANT WEATHER FEATURE THROUGH THE FIRST HALF OF THE
WEEK - BRINGING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST
OREGON AND SOUTHWEST IDAHO. THE WETTEST PERIOD WILL LIKELY BE
MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON AS FLOW IS ENHANCED BY
AN EMBEDDED UPPER LEVEL SHORT WAVE. TEMPERATURES AND SNOW LEVELS
WILL BE HIGH ENOUGH FOR BOTH RAIN AND SNOW ACROSS MOUNTAIN
VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS PRAIRIE. DRIER
WEDNESDAY AND THURSDAY AS A PACIFIC RIDGE BUILDS INLAND...CUTTING
OFF THE MOISTURE SUPPLY TO OREGON/IDAHO. RIDGE WILL SHIFT EASTWARD
ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE BACK SIDE OF THE
RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST INTO THE AREA.
EXPECT WET CONDITIONS /ESPECIALLY ACROSS HIGHER TERRAIN/ FRIDAY
NIGHT THROUGH EARLY SUNDAY.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT





000
FXUS65 KBOI 311043
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
343 AM MST SAT JAN 31 2015

.SHORT TERM...TODAY THROUGH SUNDAY...INVERSION AND HIGH PRESSURE
SURFACE/ALOFT WILL WEAKEN SUNDAY. INVERSION IN A SOMEWHAT DRY
AIRMASS /PW IN THE 10-20TH PERCENTILE/ WILL BRING MOSTLY CLEAR
SKIES TO THE MOUNTAINS AND ALLOW FOR LIMITED STRATUS AND PATCHY
DENSE FOG THIS MORNING. STRATUS AT 3 AM WAS ACROSS MUCH OF S
CENTRAL IDAHO...SW OWYHEE COUNTY AND IN PATCHES ACROSS CENTRAL
HARNEY AND NORTH BAKER COUNTIES. THE WEAKENING RIDGE WILL ALLOW
FOR SNOW LIKELY ACROSS THE WEST CENTRAL MOUNTAINS /RAIN BELOW 4K
FT MSL/ AND A CHANCE OF RAIN AND SNOW ALONG AND NW OF A LINE FROM
BANNER SUMMIT TO BOGUS BASIN THROUGH CAMBRIDGE TO BURNS /AS WELL
AS STEENS MTN/. WITH HALF-INCH PWS FORECAST BY THE GFS SUNDAY
AFTERNOON QPF/SNOW AMOUNTS MAY INCREASE AS THE EVENT GETS CLOSER
BUT FOR NOW KEPT QPF LIGHT AROUND 0.06 INCHES /OR AN INCH OF SNOW/
MAINLY ACROSS THE WEST CENTRAL MOUNTAINS.


.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MOIST WESTERLY FLOW
WILL BE THE DOMINANT WEATHER FEATURE THROUGH THE FIRST HALF OF THE
WEEK - BRINGING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST
OREGON AND SOUTHWEST IDAHO. THE WETTEST PERIOD WILL LIKELY BE
MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON AS FLOW IS ENHANCED BY
AN EMBEDDED UPPER LEVEL SHORT WAVE. TEMPERATURES AND SNOW LEVELS
WILL BE HIGH ENOUGH FOR BOTH RAIN AND SNOW ACROSS MOUNTAIN
VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS PRAIRIE. DRIER
WEDNESDAY AND THURSDAY AS A PACIFIC RIDGE BUILDS INLAND...CUTTING
OFF THE MOISTURE SUPPLY TO OREGON/IDAHO. RIDGE WILL SHIFT EASTWARD
ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE BACK SIDE OF THE
RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST INTO THE AREA.
EXPECT WET CONDITIONS /ESPECIALLY ACROSS HIGHER TERRAIN/ FRIDAY
NIGHT THROUGH EARLY SUNDAY.

&&

.AVIATION...AT 10Z...LIFR-IFR FOG WAS PRESENT AT KBNO AND
EXPECTED TO DEVELOP ACROSS OTHER LOCATIONS /INCLUDING KBKE KBOI
KEUL KMYL/ AROUND 12Z. FOG AND IFR STRATUS AT KJER LIKELY TO
PERSIST UNTIL 19Z TODAY. OTHWERWISE...VFR CONDITIONS AND LIGHT
W/NW SURFACE WINDS WILL PREVAIL. NORTHWESTERLY WINDS ALOFT WILL
AVERAGE 20 KTS THROUGH 10K FT MSL. PATCHY LIFR FOG LIKELY TO
RETURN SUNDAY MORNING.


&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT





000
FXUS65 KBOI 311043
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
343 AM MST SAT JAN 31 2015

.SHORT TERM...TODAY THROUGH SUNDAY...INVERSION AND HIGH PRESSURE
SURFACE/ALOFT WILL WEAKEN SUNDAY. INVERSION IN A SOMEWHAT DRY
AIRMASS /PW IN THE 10-20TH PERCENTILE/ WILL BRING MOSTLY CLEAR
SKIES TO THE MOUNTAINS AND ALLOW FOR LIMITED STRATUS AND PATCHY
DENSE FOG THIS MORNING. STRATUS AT 3 AM WAS ACROSS MUCH OF S
CENTRAL IDAHO...SW OWYHEE COUNTY AND IN PATCHES ACROSS CENTRAL
HARNEY AND NORTH BAKER COUNTIES. THE WEAKENING RIDGE WILL ALLOW
FOR SNOW LIKELY ACROSS THE WEST CENTRAL MOUNTAINS /RAIN BELOW 4K
FT MSL/ AND A CHANCE OF RAIN AND SNOW ALONG AND NW OF A LINE FROM
BANNER SUMMIT TO BOGUS BASIN THROUGH CAMBRIDGE TO BURNS /AS WELL
AS STEENS MTN/. WITH HALF-INCH PWS FORECAST BY THE GFS SUNDAY
AFTERNOON QPF/SNOW AMOUNTS MAY INCREASE AS THE EVENT GETS CLOSER
BUT FOR NOW KEPT QPF LIGHT AROUND 0.06 INCHES /OR AN INCH OF SNOW/
MAINLY ACROSS THE WEST CENTRAL MOUNTAINS.


.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MOIST WESTERLY FLOW
WILL BE THE DOMINANT WEATHER FEATURE THROUGH THE FIRST HALF OF THE
WEEK - BRINGING SEVERAL ROUNDS OF LIGHT PRECIPITATION TO SOUTHEAST
OREGON AND SOUTHWEST IDAHO. THE WETTEST PERIOD WILL LIKELY BE
MONDAY AFTERNOON THROUGH TUESDAY AFTERNOON AS FLOW IS ENHANCED BY
AN EMBEDDED UPPER LEVEL SHORT WAVE. TEMPERATURES AND SNOW LEVELS
WILL BE HIGH ENOUGH FOR BOTH RAIN AND SNOW ACROSS MOUNTAIN
VALLEYS...INCLUDING THE LONG VALLEY AND CAMAS PRAIRIE. DRIER
WEDNESDAY AND THURSDAY AS A PACIFIC RIDGE BUILDS INLAND...CUTTING
OFF THE MOISTURE SUPPLY TO OREGON/IDAHO. RIDGE WILL SHIFT EASTWARD
ON FRIDAY...ALLOWING SOUTHWESTERLY FLOW ON THE BACK SIDE OF THE
RIDGE TO TRANSPORT LOW-LEVEL MOISTURE NORTHEAST INTO THE AREA.
EXPECT WET CONDITIONS /ESPECIALLY ACROSS HIGHER TERRAIN/ FRIDAY
NIGHT THROUGH EARLY SUNDAY.

&&

.AVIATION...AT 10Z...LIFR-IFR FOG WAS PRESENT AT KBNO AND
EXPECTED TO DEVELOP ACROSS OTHER LOCATIONS /INCLUDING KBKE KBOI
KEUL KMYL/ AROUND 12Z. FOG AND IFR STRATUS AT KJER LIKELY TO
PERSIST UNTIL 19Z TODAY. OTHWERWISE...VFR CONDITIONS AND LIGHT
W/NW SURFACE WINDS WILL PREVAIL. NORTHWESTERLY WINDS ALOFT WILL
AVERAGE 20 KTS THROUGH 10K FT MSL. PATCHY LIFR FOG LIKELY TO
RETURN SUNDAY MORNING.


&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT




000
FXUS65 KBOI 310330
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
830 PM MST FRI JAN 30 2015

.DISCUSSION...CONDITIONS MUCH LIKE LAST NIGHT EXCEPT FEWER HIGH
CLOUDS IN SOUTH-CENTRAL IDAHO.  LIGHT WINDS AND ONLY LIMITED LOW
LEVEL MIXING AND/OR DRYING TODAY WILL AGAIN ALLOW AREAS OF FOG TO
FORM LATER TONIGHT THROUGH SATURDAY MORNING...BUT PINPOINTING
EXACTLY WHERE AND WHEN IS DIFFICULT.  AREAL EXTENT...HOWEVER...
SHOULD BE SIMILAR TO LAST NIGHT AS ALREADY FORECAST.  ON THE LARGER
SCALE LONG WAVE RIDGE REMAINS OVER THE WRN U.S. AND ERN PACIFIC.
SHORT WAVE TROUGH PASSING THROUGH IT WILL BRING A CHANCE OF RAIN AND
SNOW SUNDAY NIGHT AND MONDAY.  MORE PCPN MID-WEEK AS WESTERLY FLOW
ALOFT ADVECTS PACIFIC MOISTURE INLAND...ALSO ALREADY IN FORECAST.
NO UPDATES FOR NOW.

&&

.AVIATION...EXPECT PATCHY MVFR/IFR FOG AND STRATUS BELOW 4500 FT MSL
06Z-18Z IN THE SNAKE RIVER VALLEY...CENTRAL IDAHO MOUNTAINS...AND
EASTERN OREGON. OTHERWISE VFR CONDITIONS WILL PREVAIL UNDER MOSTLY
CLEAR SKIES THROUGH SATURDAY NIGHT. SURFACE WINDS...VARIABLE LESS
THAN 10 KTS. WINDS ALOFT...NORTH 10-20 KTS UP THROUGH 10K FT MSL.

OUTLOOK FOR SUNDAY...LATE NIGHT AND MORNING VALLEY FOG AND STRATUS
WILL DISSIPATE BY AROUND 18Z. INCREASING AND LOWERING CLOUDS WILL
LEAD TO PRECIPITATION ACROSS BAKER COUNTY OREGON AND THE WEST
CENTRAL IDAHO MOUNTAINS BY LATE AFTERNOON...WITH SNOW LEVELS NEAR
4500 FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH SUNDAY...STRATUS IS FOUND IN MUCH OF
SRN HARNEY AND MALHEUR COUNTIES AND ALSO OWYHEE COUNTY. THE
WESTERN MAGIC VALLEY HAS ITS SHARE AS WELL. THIS WILL CONTINUE
RECEDING FOR THE REMAINDER OF THE AFTERNOON BEFORE EXPANDING AGAIN
OVERNIGHT. MODELS INDICATE MORE DRYING TOMORROW AFTERNOON THAN
TODAY...SO WE ARE FORECASTING LESS STRATUS SAT AFTERNOON. ALOFT...
WE ARE IN THE COL AT THE NRN EDGE OF A LARGE UPPER LOW CENTERED NEAR
LAS VEGAS. AS THIS LOW MOVES SOUTH AND THEN EAST...NW FLOW WILL
BUILD INTO THE PAC NW. THERE IS AN ABOVE-AVERAGE AMOUNT OF MID AND
HIGH LEVEL MOISTURE IN THIS FLOW...WHICH MEANS WE WILL SEE MID AND
HIGH CLOUDS TOMORROW THROUGH SUNDAY. ENOUGH MOISTURE...AND A WEAK
SYSTEM...MOVE OVER THE RIDGE ON SUNDAY THAT WE HAVE MAINTAINED
POPS IN THE NRN PART OF THE CWA...AND ALSO MUCH OF SE OREGON...FOR
SUNDAY. THE BEST CHANCE WILL BE IN THE AFTERNOON. TEMPS WILL
REMAIN SIMILAR TO RECENT DAYS THROUGH THE PERIOD. WINDS WILL
INCREASE OUT OF THE SOUTHEAST SUNDAY AFTERNOON...GUSTING 15 TO 20
MPH IN THE UPPER TREASURE VALLEY.

LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...FLAT UPPER LEVEL RIDGE
OVER THE REGION AS A SERIES OF WEAK SYSTEMS MOVES EAST OVER
SOUTHERN CANADA. THIS WEATHER PATTERN WILL BRING A MOIST WEST
TO NORTHWEST FLOW OVER THE AREA MONDAY THROUGH WEDNESDAY FOR A
CHANCE OF MOUNTAIN SNOW AND VALLEY RAIN. TEMPERATURES WILL COOL
BUT WILL STILL BE NEAR NORMAL. THURSDAY AND FRIDAY MODELS ARE
TRENDING TOWARD THE RIDGE REDEVELOPING ALONG THE WEST COST AS LOW
PRESSURE DIGS SOUTH OVER THE EASTERN PACIFIC. MODELS IN FAIRLY
GOOD AGREE ON THE WEATHER PATTERN BUT DIFFER ON TIMING AND
PLACEMENT OF PRECIPITATION. FOR NOW WILL TREND POPS TOWARDS
CLIMATOLOGY AND MAKE CHANGES WHEN CONFIDENCE INCREASES.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
PREV LONG TERM....JA/DD




000
FXUS65 KBOI 310330
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
830 PM MST FRI JAN 30 2015

.DISCUSSION...CONDITIONS MUCH LIKE LAST NIGHT EXCEPT FEWER HIGH
CLOUDS IN SOUTH-CENTRAL IDAHO.  LIGHT WINDS AND ONLY LIMITED LOW
LEVEL MIXING AND/OR DRYING TODAY WILL AGAIN ALLOW AREAS OF FOG TO
FORM LATER TONIGHT THROUGH SATURDAY MORNING...BUT PINPOINTING
EXACTLY WHERE AND WHEN IS DIFFICULT.  AREAL EXTENT...HOWEVER...
SHOULD BE SIMILAR TO LAST NIGHT AS ALREADY FORECAST.  ON THE LARGER
SCALE LONG WAVE RIDGE REMAINS OVER THE WRN U.S. AND ERN PACIFIC.
SHORT WAVE TROUGH PASSING THROUGH IT WILL BRING A CHANCE OF RAIN AND
SNOW SUNDAY NIGHT AND MONDAY.  MORE PCPN MID-WEEK AS WESTERLY FLOW
ALOFT ADVECTS PACIFIC MOISTURE INLAND...ALSO ALREADY IN FORECAST.
NO UPDATES FOR NOW.

&&

.AVIATION...EXPECT PATCHY MVFR/IFR FOG AND STRATUS BELOW 4500 FT MSL
06Z-18Z IN THE SNAKE RIVER VALLEY...CENTRAL IDAHO MOUNTAINS...AND
EASTERN OREGON. OTHERWISE VFR CONDITIONS WILL PREVAIL UNDER MOSTLY
CLEAR SKIES THROUGH SATURDAY NIGHT. SURFACE WINDS...VARIABLE LESS
THAN 10 KTS. WINDS ALOFT...NORTH 10-20 KTS UP THROUGH 10K FT MSL.

OUTLOOK FOR SUNDAY...LATE NIGHT AND MORNING VALLEY FOG AND STRATUS
WILL DISSIPATE BY AROUND 18Z. INCREASING AND LOWERING CLOUDS WILL
LEAD TO PRECIPITATION ACROSS BAKER COUNTY OREGON AND THE WEST
CENTRAL IDAHO MOUNTAINS BY LATE AFTERNOON...WITH SNOW LEVELS NEAR
4500 FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH SUNDAY...STRATUS IS FOUND IN MUCH OF
SRN HARNEY AND MALHEUR COUNTIES AND ALSO OWYHEE COUNTY. THE
WESTERN MAGIC VALLEY HAS ITS SHARE AS WELL. THIS WILL CONTINUE
RECEDING FOR THE REMAINDER OF THE AFTERNOON BEFORE EXPANDING AGAIN
OVERNIGHT. MODELS INDICATE MORE DRYING TOMORROW AFTERNOON THAN
TODAY...SO WE ARE FORECASTING LESS STRATUS SAT AFTERNOON. ALOFT...
WE ARE IN THE COL AT THE NRN EDGE OF A LARGE UPPER LOW CENTERED NEAR
LAS VEGAS. AS THIS LOW MOVES SOUTH AND THEN EAST...NW FLOW WILL
BUILD INTO THE PAC NW. THERE IS AN ABOVE-AVERAGE AMOUNT OF MID AND
HIGH LEVEL MOISTURE IN THIS FLOW...WHICH MEANS WE WILL SEE MID AND
HIGH CLOUDS TOMORROW THROUGH SUNDAY. ENOUGH MOISTURE...AND A WEAK
SYSTEM...MOVE OVER THE RIDGE ON SUNDAY THAT WE HAVE MAINTAINED
POPS IN THE NRN PART OF THE CWA...AND ALSO MUCH OF SE OREGON...FOR
SUNDAY. THE BEST CHANCE WILL BE IN THE AFTERNOON. TEMPS WILL
REMAIN SIMILAR TO RECENT DAYS THROUGH THE PERIOD. WINDS WILL
INCREASE OUT OF THE SOUTHEAST SUNDAY AFTERNOON...GUSTING 15 TO 20
MPH IN THE UPPER TREASURE VALLEY.

LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...FLAT UPPER LEVEL RIDGE
OVER THE REGION AS A SERIES OF WEAK SYSTEMS MOVES EAST OVER
SOUTHERN CANADA. THIS WEATHER PATTERN WILL BRING A MOIST WEST
TO NORTHWEST FLOW OVER THE AREA MONDAY THROUGH WEDNESDAY FOR A
CHANCE OF MOUNTAIN SNOW AND VALLEY RAIN. TEMPERATURES WILL COOL
BUT WILL STILL BE NEAR NORMAL. THURSDAY AND FRIDAY MODELS ARE
TRENDING TOWARD THE RIDGE REDEVELOPING ALONG THE WEST COST AS LOW
PRESSURE DIGS SOUTH OVER THE EASTERN PACIFIC. MODELS IN FAIRLY
GOOD AGREE ON THE WEATHER PATTERN BUT DIFFER ON TIMING AND
PLACEMENT OF PRECIPITATION. FOR NOW WILL TREND POPS TOWARDS
CLIMATOLOGY AND MAKE CHANGES WHEN CONFIDENCE INCREASES.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
PREV LONG TERM....JA/DD





000
FXUS65 KBOI 302146
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
246 PM MST FRI JAN 30 2015

.SHORT TERM...TONIGHT THROUGH SUNDAY...STRATUS IS FOUND IN MUCH OF
SRN HARNEY AND MALHEUR COUNTIES AND ALSO OWYHEE COUNTY. THE
WESTERN MAGIC VALLEY HAS ITS SHARE AS WELL. THIS WILL CONTINUE
RECEDING FOR THE REMAINDER OF THE AFTERNOON BEFORE EXPANDING AGAIN
OVERNIGHT. MODELS INDICATE MORE DRYING TOMORROW AFTERNOON THAN
TODAY...SO WE ARE FORECAST LESS STRATUS SAT AFTERNOON. ALOFT...WE
ARE IN THE COL AT THE NRN EDGE OF A LARGE UPPER LOW CENTERED NEAR
LAS VEGAS. AS THIS LOW MOVES SOUTH AND THEN EAST...NW FLOW WILL
BUILD INTO THE PAC NW. THERE IS AN ABOVE-AVERAGE AMOUNT OF MID AND
HIGH LEVEL MOISTURE IN THIS FLOW...WHICH MEANS WE WILL SEE MID AND
HIGH CLOUDS TOMORROW THROUGH SUNDAY. ENOUGH MOISTURE...AND A WEAK
SYSTEM...MOVE OVER THE RIDGE ON SUNDAY THAT WE HAVE MAINTAINED
POPS IN THE NRN PART OF THE CWA...AND ALSO MUCH OF SE OREGON...FOR
SUNDAY. THE BEST CHANCE WILL BE IN THE AFTERNOON. TEMPS WILL
REMAIN SIMILAR TO RECENT DAYS THROUGH THE PERIOD. WINDS WILL
INCREASE OUT OF THE SOUTHEAST SUNDAY AFTERNOON...GUSTING 15 TO 20
MPH IN THE UPPER TREASURE VALLEY.

.LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...FLAT UPPER LEVEL RIDGE
OVER THE REGION AS SEVERAL IN A SERIES OF WEAK SYSTEMS MOVES EAST
OVER SOUTHERN CANADA. THIS WEATHER PATTERN WILL BRING A MOIST WEST
TO NORTHWEST FLOW OVER THE AREA MONDAY THROUGH WEDNESDAY FOR A
CHANCE OF MOUNTAIN SNOW AND VALLEY RAIN. TEMPERATURES WILL COOL
BUT WILL STILL BE NEAR NORMAL. THURSDAY AND FRIDAY MODELS ARE
TRENDING TOWARD THE RIDGE REDEVELOPING ALONG THE WEST COST AS LOW
PRESSURE DIGS SOUTH OVER THE EASTERN PACIFIC. MODELS IN FAIRLY
GOOD AGREE ON THE WEATHER PATTERN BUT DIFFER ON TIMING AND
PLACEMENT OF PRECIPITATION. FOR NOW WILL TREND POPS TOWARDS
CLIMATOLOGY AND MAKE CHANGES WHEN CONFIDENCE INCREASES.

&&

.AVIATION...MVFR/IFR STRATUS SOUTH OF A KBNO-KMUO-KJER LINE THIS
AFTERNOON WILL CONTINUE TO DECREASE INTO THIS EVENING...BUT SOME
UNCERTAINTY AS TO IF IT WILL SPREAD OVER THE REGION AGAIN TONIGHT.
LOCATIONS THAT KEEP THE STRATUS AND LOCATION WHERE THE STRATUS
RETURNS TO THE AREA...EXPECTING LITTLE TO NO FOG. AREAS THAT
REMAIN CLEAR EXPECT VALLEY FOG TO DEVELOP WITH LOCAL IFR
CONDITIONS DEVELOPING AFTER 06Z. OTHERWISE MOSTLY CLEAR SKIES.
SURFACE WINDS TONIGHT WILL BE LIGHT AND VARIABLE. WINDS ALOFT WILL
BE NORTHEASTERLY AROUND 10 KNOTS UP THROUGH 10K FEET MSL.

WEEKEND OUTLOOK...VALLEY FOG/STRATUS CONDITIONS WILL PERSIST
THROUGH THE WEEKEND. OTHERWISE VFR THROUGH 18Z SUNDAY WITH
INCREASING AND LOWERING CLOUDS SUNDAY AND PRECIPITATION SPREADING
INTO KBKE AND KMYL LATE SUNDAY AFTERNOON.


&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JA/DD
AVIATION.....JA





000
FXUS65 KBOI 302146
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
246 PM MST FRI JAN 30 2015

.SHORT TERM...TONIGHT THROUGH SUNDAY...STRATUS IS FOUND IN MUCH OF
SRN HARNEY AND MALHEUR COUNTIES AND ALSO OWYHEE COUNTY. THE
WESTERN MAGIC VALLEY HAS ITS SHARE AS WELL. THIS WILL CONTINUE
RECEDING FOR THE REMAINDER OF THE AFTERNOON BEFORE EXPANDING AGAIN
OVERNIGHT. MODELS INDICATE MORE DRYING TOMORROW AFTERNOON THAN
TODAY...SO WE ARE FORECAST LESS STRATUS SAT AFTERNOON. ALOFT...WE
ARE IN THE COL AT THE NRN EDGE OF A LARGE UPPER LOW CENTERED NEAR
LAS VEGAS. AS THIS LOW MOVES SOUTH AND THEN EAST...NW FLOW WILL
BUILD INTO THE PAC NW. THERE IS AN ABOVE-AVERAGE AMOUNT OF MID AND
HIGH LEVEL MOISTURE IN THIS FLOW...WHICH MEANS WE WILL SEE MID AND
HIGH CLOUDS TOMORROW THROUGH SUNDAY. ENOUGH MOISTURE...AND A WEAK
SYSTEM...MOVE OVER THE RIDGE ON SUNDAY THAT WE HAVE MAINTAINED
POPS IN THE NRN PART OF THE CWA...AND ALSO MUCH OF SE OREGON...FOR
SUNDAY. THE BEST CHANCE WILL BE IN THE AFTERNOON. TEMPS WILL
REMAIN SIMILAR TO RECENT DAYS THROUGH THE PERIOD. WINDS WILL
INCREASE OUT OF THE SOUTHEAST SUNDAY AFTERNOON...GUSTING 15 TO 20
MPH IN THE UPPER TREASURE VALLEY.

.LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...FLAT UPPER LEVEL RIDGE
OVER THE REGION AS SEVERAL IN A SERIES OF WEAK SYSTEMS MOVES EAST
OVER SOUTHERN CANADA. THIS WEATHER PATTERN WILL BRING A MOIST WEST
TO NORTHWEST FLOW OVER THE AREA MONDAY THROUGH WEDNESDAY FOR A
CHANCE OF MOUNTAIN SNOW AND VALLEY RAIN. TEMPERATURES WILL COOL
BUT WILL STILL BE NEAR NORMAL. THURSDAY AND FRIDAY MODELS ARE
TRENDING TOWARD THE RIDGE REDEVELOPING ALONG THE WEST COST AS LOW
PRESSURE DIGS SOUTH OVER THE EASTERN PACIFIC. MODELS IN FAIRLY
GOOD AGREE ON THE WEATHER PATTERN BUT DIFFER ON TIMING AND
PLACEMENT OF PRECIPITATION. FOR NOW WILL TREND POPS TOWARDS
CLIMATOLOGY AND MAKE CHANGES WHEN CONFIDENCE INCREASES.

&&

.AVIATION...MVFR/IFR STRATUS SOUTH OF A KBNO-KMUO-KJER LINE THIS
AFTERNOON WILL CONTINUE TO DECREASE INTO THIS EVENING...BUT SOME
UNCERTAINTY AS TO IF IT WILL SPREAD OVER THE REGION AGAIN TONIGHT.
LOCATIONS THAT KEEP THE STRATUS AND LOCATION WHERE THE STRATUS
RETURNS TO THE AREA...EXPECTING LITTLE TO NO FOG. AREAS THAT
REMAIN CLEAR EXPECT VALLEY FOG TO DEVELOP WITH LOCAL IFR
CONDITIONS DEVELOPING AFTER 06Z. OTHERWISE MOSTLY CLEAR SKIES.
SURFACE WINDS TONIGHT WILL BE LIGHT AND VARIABLE. WINDS ALOFT WILL
BE NORTHEASTERLY AROUND 10 KNOTS UP THROUGH 10K FEET MSL.

WEEKEND OUTLOOK...VALLEY FOG/STRATUS CONDITIONS WILL PERSIST
THROUGH THE WEEKEND. OTHERWISE VFR THROUGH 18Z SUNDAY WITH
INCREASING AND LOWERING CLOUDS SUNDAY AND PRECIPITATION SPREADING
INTO KBKE AND KMYL LATE SUNDAY AFTERNOON.


&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JA/DD
AVIATION.....JA




000
FXUS65 KBOI 301629
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
929 AM MST FRI JAN 30 2015

.DISCUSSION...STRATUS COVERING MOST OF SE OREGON AND MUCH OF
OWYHEE COUNTY IN SW IDAHO. ALSO SOME PATCHY DENSE FOG MIXED WITH
STRATUS IN THE TREASURE VALLEY GENERALLY FROM BOISE WEST TO
ONTARIO. WE EXPECT MUCH OF THE STRATUS AND FOG TO BURN OFF TODAY
AS DRY AIR MIXES DOWN. MINOR UPDATE COMING IN ABOUT AN HOUR TO
TWEAK TEMPS AND SKY COVER.

&&

.AVIATION...WIDESPREAD LOW VFR STRATUS OVER THE FORECAST AREA
WITH LOCAL MVFR CEILINGS THIS MORNING. STRATUS DECK WILL SLOWLY
DISSIPATE THROUGH THE DAY. AREAS OF IFR CONDITIONS IN VALLEY FOG
WITH ISOLATED LIFR CONDITIONS. EXPECT FOG TO DISSIPATE BETWEEN 19Z
AND 20Z. OTHERWISE MOSTLY CLEAR SKIES WITH HIGH LEVEL CLOUDS OVER
SOUTHWEST IDAHO. STRATUS AND VALLEY FOG WILL REDEVELOP AGAIN
TONIGHT...BUT SOME UNCERTAINTY AS TO HOW WIDESPREAD THE STRATUS
WILL BE AND WHERE FOG WILL FORM. SURFACE WINDS TODAY WILL BE
LIGHT. WINDS ALOFT WILL BE NORTHEASTERLY AROUND 10 KNOTS UP
THROUGH 10K FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH SATURDAY...A FEW RADAR ECHOES WERE
NEAR THE ID-NV BORDER THIS MORNING ALONG WITH ABUNDANT MID/HIGH
CLOUDS THROUGH THE SOUTH HALF OF IDAHO. PATCHY LOW STRATUS
CONTINUED PER AIRPORT OBS. A TROUGH ON THE NORTH LOW MOVING
THROUGH THE SOUTHWEST MAY BRING ENOUGH MOISTURE FOR ISOLATED
SHOWERS NEAR THE NV-TWIN FALLS COUNTY LINE AS IT SHIFTS EAST
TODAY. BEHIND THAT LOW HIGH PRESSURE AT THE SURFACE AND ALOFT
WILL STRENGTHEN THE INVERSION ACROSS SE OREGON AND SW IDAHO
SATURDAY. TEMPERATURES WILL BE ABOVE NORMAL...WITH MOUNTAIN HIGHS
WELL ABOVE NORMAL.

LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...MODERATE PACIFIC RIDGE
WILL MOVE INLAND EARLY SUNDAY BUT WILL BE SHORT-LIVED AS AN UPPER
LEVEL TROUGH MOVES EAST OVER BRITISH COLUMBIA...SUPPRESSING RIDGE
HEIGHTS OVER OREGON/IDAHO. AS A RESULT...MOIST WESTERLY FLOW ALOFT
WILL DOMINATE MONDAY THROUGH WEDNESDAY...WARRANTING A CHANCE OF
PRECIPITATION /VALLEY RAIN AND MOUNTAIN SNOW/ THROUGH MID-WEEK.
HEIGHTS WILL REAMPLIFY LATER IN THE WEEK...IN RESPONSE TO AN UPPER
LOW DEEPENING OVER THE NORTH PACIFIC. MAIN EFFECT LOCALLY WILL BE
WARMER TEMPERATURES AND DRY CONDITIONS SOUTH OF THE SNAKE RIVER
THROUGH EARLY FRIDAY. WET CONDITIONS LOOK TO RETURN BY LATE FRIDAY
AS THE UPPER LEVEL RIDGE SHIFTS INLAND AND SOUTHWESTERLY FLOW
TRANSPORTS PACIFIC MOISTURE INLAND.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...SP
AVIATION.....JA
PREV SHORT TERM...VM
PREV LONG TERM....MT




000
FXUS65 KBOI 301629
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
929 AM MST FRI JAN 30 2015

.DISCUSSION...STRATUS COVERING MOST OF SE OREGON AND MUCH OF
OWYHEE COUNTY IN SW IDAHO. ALSO SOME PATCHY DENSE FOG MIXED WITH
STRATUS IN THE TREASURE VALLEY GENERALLY FROM BOISE WEST TO
ONTARIO. WE EXPECT MUCH OF THE STRATUS AND FOG TO BURN OFF TODAY
AS DRY AIR MIXES DOWN. MINOR UPDATE COMING IN ABOUT AN HOUR TO
TWEAK TEMPS AND SKY COVER.

&&

.AVIATION...WIDESPREAD LOW VFR STRATUS OVER THE FORECAST AREA
WITH LOCAL MVFR CEILINGS THIS MORNING. STRATUS DECK WILL SLOWLY
DISSIPATE THROUGH THE DAY. AREAS OF IFR CONDITIONS IN VALLEY FOG
WITH ISOLATED LIFR CONDITIONS. EXPECT FOG TO DISSIPATE BETWEEN 19Z
AND 20Z. OTHERWISE MOSTLY CLEAR SKIES WITH HIGH LEVEL CLOUDS OVER
SOUTHWEST IDAHO. STRATUS AND VALLEY FOG WILL REDEVELOP AGAIN
TONIGHT...BUT SOME UNCERTAINTY AS TO HOW WIDESPREAD THE STRATUS
WILL BE AND WHERE FOG WILL FORM. SURFACE WINDS TODAY WILL BE
LIGHT. WINDS ALOFT WILL BE NORTHEASTERLY AROUND 10 KNOTS UP
THROUGH 10K FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH SATURDAY...A FEW RADAR ECHOES WERE
NEAR THE ID-NV BORDER THIS MORNING ALONG WITH ABUNDANT MID/HIGH
CLOUDS THROUGH THE SOUTH HALF OF IDAHO. PATCHY LOW STRATUS
CONTINUED PER AIRPORT OBS. A TROUGH ON THE NORTH LOW MOVING
THROUGH THE SOUTHWEST MAY BRING ENOUGH MOISTURE FOR ISOLATED
SHOWERS NEAR THE NV-TWIN FALLS COUNTY LINE AS IT SHIFTS EAST
TODAY. BEHIND THAT LOW HIGH PRESSURE AT THE SURFACE AND ALOFT
WILL STRENGTHEN THE INVERSION ACROSS SE OREGON AND SW IDAHO
SATURDAY. TEMPERATURES WILL BE ABOVE NORMAL...WITH MOUNTAIN HIGHS
WELL ABOVE NORMAL.

LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...MODERATE PACIFIC RIDGE
WILL MOVE INLAND EARLY SUNDAY BUT WILL BE SHORT-LIVED AS AN UPPER
LEVEL TROUGH MOVES EAST OVER BRITISH COLUMBIA...SUPPRESSING RIDGE
HEIGHTS OVER OREGON/IDAHO. AS A RESULT...MOIST WESTERLY FLOW ALOFT
WILL DOMINATE MONDAY THROUGH WEDNESDAY...WARRANTING A CHANCE OF
PRECIPITATION /VALLEY RAIN AND MOUNTAIN SNOW/ THROUGH MID-WEEK.
HEIGHTS WILL REAMPLIFY LATER IN THE WEEK...IN RESPONSE TO AN UPPER
LOW DEEPENING OVER THE NORTH PACIFIC. MAIN EFFECT LOCALLY WILL BE
WARMER TEMPERATURES AND DRY CONDITIONS SOUTH OF THE SNAKE RIVER
THROUGH EARLY FRIDAY. WET CONDITIONS LOOK TO RETURN BY LATE FRIDAY
AS THE UPPER LEVEL RIDGE SHIFTS INLAND AND SOUTHWESTERLY FLOW
TRANSPORTS PACIFIC MOISTURE INLAND.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...SP
AVIATION.....JA
PREV SHORT TERM...VM
PREV LONG TERM....MT





000
FXUS65 KBOI 301011
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
311 AM MST FRI JAN 30 2015

.SHORT TERM...TODAY THROUGH SATURDAY...A FEW RADAR ECHOES WERE
NEAR THE ID-NV BORDER THIS MORNING ALONG WITH ABUNDANT MID/HIGH
CLOUDS THROUGH THE SOUTH HALF OF IDAHO. PATCHY LOW STRATUS
CONTINUED PER AIRPORT OBS. A TROUGH ON THE NORTH LOW MOVING
THROUGH THE SOUTHWEST MAY BRING ENOUGH MOISTURE FOR ISOLATED
SHOWERS NEAR THE NV-TWIN FALLS COUNTY LINE AS IT SHIFTS EAST
TODAY. BEHIND THAT LOW HIGH PRESSURE AT THE SURFACE AND ALOFT
WILL STRENGTHEN THE INVERSION ACROSS SE OREGON AND SW IDAHO
SATURDAY. TEMPERATURES WILL BE ABOVE NORMAL...WITH MOUNTAIN HIGHS
WELL ABOVE NORMAL.

.LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...MODERATE PACIFIC RIDGE
WILL MOVE INLAND EARLY SUNDAY BUT WILL BE SHORT-LIVED AS AN UPPER
LEVEL TROUGH MOVES EAST OVER BRITISH COLUMBIA...SUPPRESSING RIDGE
HEIGHTS OVER OREGON/IDAHO. AS A RESULT...MOIST WESTERLY FLOW ALOFT
WILL DOMINATE MONDAY THROUGH WEDNESDAY...WARRANTING A CHANCE OF
PRECIPITATION /VALLEY RAIN AND MOUNTAIN SNOW/ THROUGH MID-WEEK.
HEIGHTS WILL REAMPLIFY LATER IN THE WEEK...IN RESPONSE TO AN UPPER
LOW DEEPENING OVER THE NORTH PACIFIC. MAIN EFFECT LOCALLY WILL BE
WARMER TEMPERATURES AND DRY CONDITIONS SOUTH OF THE SNAKE RIVER
THROUGH EARLY FRIDAY. WET CONDITIONS LOOK TO RETURN BY LATE FRIDAY
AS THE UPPER LEVEL RIDGE SHIFTS INLAND AND SOUTHWESTERLY FLOW
TRANSPORTS PACIFIC MOISTURE INLAND.

&&

.AVIATION...LOCAL IFR CONDITIONS IN VALLEY FOG /INCLUDING KBKE AND
KMYL/ THROUGH 16Z THIS MORNING. THE TREASURE VALLEY OF BOTH OREGON
AND IDAHO WILL SEE CONTINUED VFR STRATUS /CIGS AROUND 4K AGL/ WITH
SOME BREAKS BETWEEN 21Z AND 01Z THIS AFTERNOON. MID AND HIGH LEVEL
CLOUD COVER WILL REMAIN CONFINED TO THE MAGIC VALLEY AND SOUTH TO
THE NEVADA BORDER. LIGHT W/NW SURFACE GENERALLY 10 KTS OR LESS.
NORTHWESTERLY WINDS ALOFT WILL AVERAGE 15 KTS THROUGH 10K FT MSL.

WEEKEND OUTLOOK...VALLEY FOG/STRATUS CONDITIONS TO PERSIST
THROUGH THE UPCOMING WEEKEND...OTHERWISE VFR THROUGH 18Z SUNDAY.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT




000
FXUS65 KBOI 301011
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
311 AM MST FRI JAN 30 2015

.SHORT TERM...TODAY THROUGH SATURDAY...A FEW RADAR ECHOES WERE
NEAR THE ID-NV BORDER THIS MORNING ALONG WITH ABUNDANT MID/HIGH
CLOUDS THROUGH THE SOUTH HALF OF IDAHO. PATCHY LOW STRATUS
CONTINUED PER AIRPORT OBS. A TROUGH ON THE NORTH LOW MOVING
THROUGH THE SOUTHWEST MAY BRING ENOUGH MOISTURE FOR ISOLATED
SHOWERS NEAR THE NV-TWIN FALLS COUNTY LINE AS IT SHIFTS EAST
TODAY. BEHIND THAT LOW HIGH PRESSURE AT THE SURFACE AND ALOFT
WILL STRENGTHEN THE INVERSION ACROSS SE OREGON AND SW IDAHO
SATURDAY. TEMPERATURES WILL BE ABOVE NORMAL...WITH MOUNTAIN HIGHS
WELL ABOVE NORMAL.

.LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...MODERATE PACIFIC RIDGE
WILL MOVE INLAND EARLY SUNDAY BUT WILL BE SHORT-LIVED AS AN UPPER
LEVEL TROUGH MOVES EAST OVER BRITISH COLUMBIA...SUPPRESSING RIDGE
HEIGHTS OVER OREGON/IDAHO. AS A RESULT...MOIST WESTERLY FLOW ALOFT
WILL DOMINATE MONDAY THROUGH WEDNESDAY...WARRANTING A CHANCE OF
PRECIPITATION /VALLEY RAIN AND MOUNTAIN SNOW/ THROUGH MID-WEEK.
HEIGHTS WILL REAMPLIFY LATER IN THE WEEK...IN RESPONSE TO AN UPPER
LOW DEEPENING OVER THE NORTH PACIFIC. MAIN EFFECT LOCALLY WILL BE
WARMER TEMPERATURES AND DRY CONDITIONS SOUTH OF THE SNAKE RIVER
THROUGH EARLY FRIDAY. WET CONDITIONS LOOK TO RETURN BY LATE FRIDAY
AS THE UPPER LEVEL RIDGE SHIFTS INLAND AND SOUTHWESTERLY FLOW
TRANSPORTS PACIFIC MOISTURE INLAND.

&&

.AVIATION...LOCAL IFR CONDITIONS IN VALLEY FOG /INCLUDING KBKE AND
KMYL/ THROUGH 16Z THIS MORNING. THE TREASURE VALLEY OF BOTH OREGON
AND IDAHO WILL SEE CONTINUED VFR STRATUS /CIGS AROUND 4K AGL/ WITH
SOME BREAKS BETWEEN 21Z AND 01Z THIS AFTERNOON. MID AND HIGH LEVEL
CLOUD COVER WILL REMAIN CONFINED TO THE MAGIC VALLEY AND SOUTH TO
THE NEVADA BORDER. LIGHT W/NW SURFACE GENERALLY 10 KTS OR LESS.
NORTHWESTERLY WINDS ALOFT WILL AVERAGE 15 KTS THROUGH 10K FT MSL.

WEEKEND OUTLOOK...VALLEY FOG/STRATUS CONDITIONS TO PERSIST
THROUGH THE UPCOMING WEEKEND...OTHERWISE VFR THROUGH 18Z SUNDAY.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....MT
AVIATION.....MT





000
FXUS65 KBOI 300341
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
841 PM MST THU JAN 29 2015

.DISCUSSION...OUR CWA IS IN THE COL BETWEEN UPPER TROUGH TO OUR
SOUTH IN NEVADA/SRN CALIF AND WESTERLY FLOW IN SRN CANADA.  THUS
LIGHT WINDS IN OUR CWA WITH LITTLE CHANGE IN SENSIBLE WX.  HIGH
CLOUDS DUE TO THE TROUGH NOW COVER SOUTH-CENTRAL IDAHO WITH FEWER
HIGH CLOUDS ELSEWHERE.  AREAS OF STRATUS AND PATCHY FOG IN THE
VALLEYS.  THE HIGHER CLOUDS WILL DECREASE FROM THE WEST TONIGHT AND
FRIDAY AS MAIN UPPER RIDGE IN THE ERN PACIFIC BUILDS INLAND.  AFTER
THE TROUGH TO OUR SOUTH MOVES EAST AND AWAY FROM US THE RIDGE WILL
AGAIN DOMINATE THE ENTIRE WRN U.S.  TROUGHS IN WRN CANADA WILL
FLATTEN THE RIDGE AT TIMES AND BRING CHANCES OF PCPN...MAINLY IN NRN
ZONES.  STRONGEST OF THESE TROUGH SHOULD BE HERE MONDAY...BUT NO
MAJOR PATTERN CHANGE IS FORESEEN THROUGH THE COMING WEEK.  NO
UPDATES.

&&

.AVIATION...MOSTLY VFR. AREAS OF LOW VFR STRATUS KONO-KMUO...WITH
LOCAL MVFR CEILINGS...WILL PERSIST THROUGH FRIDAY MORNING. ALSO
EXPECT LOCAL MVFR STRATUS IN THE SNAKE RIVER VALLEY EAST OF KMUO...
AND PATCHY VALLEY FOG IN EASTERN OREGON. SURFACE WINDS...VARIABLE
LESS THAN 10 KTS. WINDS ALOFT...NORTHEAST 5-15 KTS UP THROUGH 10K
FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH SATURDAY...WE WILL REMAIN ON THE FAR
NORTHERN EDGE OF A LARGE UPPER LEVEL LOW...PRESENTLY CENTERED
OVER SRN CA...THROUGH MIDDAY TOMORROW...THEN SWITCH TO NW FLOW
ALOFT ON THE EAST SIDE OF A DEVELOPING RIDGE FOR FRIDAY NIGHT AND
SATURDAY. THIS WILL KEEP THE AREA PRECIPITATION-FREE AND
STRENGTHEN THE INVERSION THAT HAS BEEN SO PREVALENT THIS MONTH.
MOST OF THE FOG IS GONE...BUT STRATUS COVERS MUCH OF THE LOWER
ELEVATIONS AREAS OF EAST-CENTRAL OREGON AND SW IDAHO. THIS
STRATUS WILL MOVE AND EVOLVE THROUGH SATURDAY...MOST LIKELY
FILLING UP THE VALLEYS FROM AROUND MIDNIGHT TO AROUND NOON...THEN
TAPERING OFF IN THE AFTERNOONS. WINDS WILL REMAIN LIGHT. OUTSIDE
OF THE STRATUS...SKIES WILL BE MOSTLY CLEAR.

LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...WEAK UPPER LEVEL
RIDGE OVER THE AREA SATURDAY NIGHT WILL FLATTEN INTO ZONAL FLOW
SUNDAY THROUGH MONDAY AS A WEAK UPPER LEVEL TROUGH MOVES THROUGH
THE FLOW. AS THE RIDGE FLATTENS ON SUNDAY A CHANCE OF
PRECIPITATION WILL DEVELOP OVER NORTHERN ZONES AND SPREAD TO THE
REST OF THE FORECAST AREA SUNDAY NIGHT AND MONDAY. THERE ARE
DIFFERENCES IN THE MODELS AS TO TIMING OF PRECIPITATION SO WENT
WITH A MODEL BLEND. UPPER LEVEL RIDGE REBUILDS ALONG THE WEST
COAST BEGINNING MONDAY NIGHT AND WILL LINGER OVER THE AREA THROUGH
THE END OF THE WEEK. MOST LOCATIONS WILL BE DRY TUESDAY THROUGH
THURSDAY BUT ENOUGH MOISTURE IN NORTHWESTERLY FLOW OVER THE AREA
AS THE RIDGE BUILDS ALONG THE COAST WILL KEEP A SLIGHT CHANCE OF
PRECIPITATION OVER THE WEST CENTRAL AND BOISE MOUNTAINS.
TEMPERATURES THROUGH THE EXTENDED PERIOD ARE EXPECTED TO REMAIN AT
OR ABOVE NORMAL.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
PREV LONG TERM....JA/WH





000
FXUS65 KBOI 300341
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
841 PM MST THU JAN 29 2015

.DISCUSSION...OUR CWA IS IN THE COL BETWEEN UPPER TROUGH TO OUR
SOUTH IN NEVADA/SRN CALIF AND WESTERLY FLOW IN SRN CANADA.  THUS
LIGHT WINDS IN OUR CWA WITH LITTLE CHANGE IN SENSIBLE WX.  HIGH
CLOUDS DUE TO THE TROUGH NOW COVER SOUTH-CENTRAL IDAHO WITH FEWER
HIGH CLOUDS ELSEWHERE.  AREAS OF STRATUS AND PATCHY FOG IN THE
VALLEYS.  THE HIGHER CLOUDS WILL DECREASE FROM THE WEST TONIGHT AND
FRIDAY AS MAIN UPPER RIDGE IN THE ERN PACIFIC BUILDS INLAND.  AFTER
THE TROUGH TO OUR SOUTH MOVES EAST AND AWAY FROM US THE RIDGE WILL
AGAIN DOMINATE THE ENTIRE WRN U.S.  TROUGHS IN WRN CANADA WILL
FLATTEN THE RIDGE AT TIMES AND BRING CHANCES OF PCPN...MAINLY IN NRN
ZONES.  STRONGEST OF THESE TROUGH SHOULD BE HERE MONDAY...BUT NO
MAJOR PATTERN CHANGE IS FORESEEN THROUGH THE COMING WEEK.  NO
UPDATES.

&&

.AVIATION...MOSTLY VFR. AREAS OF LOW VFR STRATUS KONO-KMUO...WITH
LOCAL MVFR CEILINGS...WILL PERSIST THROUGH FRIDAY MORNING. ALSO
EXPECT LOCAL MVFR STRATUS IN THE SNAKE RIVER VALLEY EAST OF KMUO...
AND PATCHY VALLEY FOG IN EASTERN OREGON. SURFACE WINDS...VARIABLE
LESS THAN 10 KTS. WINDS ALOFT...NORTHEAST 5-15 KTS UP THROUGH 10K
FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH SATURDAY...WE WILL REMAIN ON THE FAR
NORTHERN EDGE OF A LARGE UPPER LEVEL LOW...PRESENTLY CENTERED
OVER SRN CA...THROUGH MIDDAY TOMORROW...THEN SWITCH TO NW FLOW
ALOFT ON THE EAST SIDE OF A DEVELOPING RIDGE FOR FRIDAY NIGHT AND
SATURDAY. THIS WILL KEEP THE AREA PRECIPITATION-FREE AND
STRENGTHEN THE INVERSION THAT HAS BEEN SO PREVALENT THIS MONTH.
MOST OF THE FOG IS GONE...BUT STRATUS COVERS MUCH OF THE LOWER
ELEVATIONS AREAS OF EAST-CENTRAL OREGON AND SW IDAHO. THIS
STRATUS WILL MOVE AND EVOLVE THROUGH SATURDAY...MOST LIKELY
FILLING UP THE VALLEYS FROM AROUND MIDNIGHT TO AROUND NOON...THEN
TAPERING OFF IN THE AFTERNOONS. WINDS WILL REMAIN LIGHT. OUTSIDE
OF THE STRATUS...SKIES WILL BE MOSTLY CLEAR.

LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...WEAK UPPER LEVEL
RIDGE OVER THE AREA SATURDAY NIGHT WILL FLATTEN INTO ZONAL FLOW
SUNDAY THROUGH MONDAY AS A WEAK UPPER LEVEL TROUGH MOVES THROUGH
THE FLOW. AS THE RIDGE FLATTENS ON SUNDAY A CHANCE OF
PRECIPITATION WILL DEVELOP OVER NORTHERN ZONES AND SPREAD TO THE
REST OF THE FORECAST AREA SUNDAY NIGHT AND MONDAY. THERE ARE
DIFFERENCES IN THE MODELS AS TO TIMING OF PRECIPITATION SO WENT
WITH A MODEL BLEND. UPPER LEVEL RIDGE REBUILDS ALONG THE WEST
COAST BEGINNING MONDAY NIGHT AND WILL LINGER OVER THE AREA THROUGH
THE END OF THE WEEK. MOST LOCATIONS WILL BE DRY TUESDAY THROUGH
THURSDAY BUT ENOUGH MOISTURE IN NORTHWESTERLY FLOW OVER THE AREA
AS THE RIDGE BUILDS ALONG THE COAST WILL KEEP A SLIGHT CHANCE OF
PRECIPITATION OVER THE WEST CENTRAL AND BOISE MOUNTAINS.
TEMPERATURES THROUGH THE EXTENDED PERIOD ARE EXPECTED TO REMAIN AT
OR ABOVE NORMAL.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
PREV LONG TERM....JA/WH




000
FXUS65 KBOI 292154
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
254 PM MST THU JAN 29 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY...WE WILL REMAIN ON THE FAR
NORTHERN EDGE OF A LARGE UPPER LEVEL LOW...PRESENTLY CENTERED
OVER SRN CA...THROUGH MIDDAY TOMORROW...THEN SWITCH TO NW FLOW
ALOFT ON THE EAST SIDE OF A DEVELOPING RIDGE FOR FRIDAY NIGHT AND
SATURDAY. THIS WILL KEEP THE AREA PRECIPITATION-FREE AND
STRENGTHEN THE INVERSION THAT HAS BEEN SO PREVALENT THIS MONTH.
MOST OF THE FOG IS GONE...BUT STRATUS COVERS MUCH OF THE LOWER
ELEVATIONS AREAS OF EAST-CENTRAL OREGON AND SW IDAHO. THIS
STRATUS WILL MOVE AND EVOLVE THROUGH SATURDAY...MOST LIKELY
FILLING UP THE VALLEYS FROM AROUND MIDNIGHT TO AROUND NOON...THEN
TAPERING OFF IN THE AFTERNOONS. WINDS WILL REMAIN LIGHT. OUTSIDE
OF THE STRATUS...SKIES WILL BE MOSTLY CLEAR.

.LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...WEAK UPPER LEVEL
RIDGE OVER THE AREA SATURDAY NIGHT WILL FLATTEN INTO ZONAL FLOW
SUNDAY THROUGH MONDAY AS A WEAK UPPER LEVEL TROUGH MOVES THROUGH
THE FLOW. AS THE RIDGE FLATTENS ON SUNDAY A CHANCE OF
PRECIPITATION WILL DEVELOP OVER NORTHERN ZONES AND SPREAD TO TO
THE REST OF THE FORECAST AREA SUNDAY NIGHT AND MONDAY. THERE ARE
DIFFERENCES IN THE MODELS AS TO TIMING OF PRECIPITATION SO WENT
WITH A MODEL BLEND. UPPER LEVEL RIDGE REBUILDS ALONG THE WEST
COAST BEGINNING MONDAY NIGHT AND WILL LINGER OVER THE AREA THROUGH
THE END OF THE WEEK. MOST LOCATIONS WILL BE DRY TUESDAY THROUGH
THURSDAY BUT ENOUGH MOISTURE IN NORTHWESTERLY FLOW OVER THE AREA
AS THE RIDGE BUILDS ALONG THE COAST WILL KEEP A SLIGHT CHANCE OF
PRECIPITATION OVER THE WEST CENTRAL AND BOISE MOUNTAINS.
TEMPERATURES THROUGH THE EXTENDED PERIOD ARE EXPECTED TO REMAIN AT
OR ABOVE NORMAL.

&&

.AVIATION...HIGH LEVEL CLOUDS OVER THE REGION TONIGHT WITH MOSTLY
VFR CONDITIONS. LOCAL MVFR CEILINGS IN THE LOWER VALLEYS HAVE
PERSISTED INTO THE AFTERNOON AND EXPECT THIS STRATUS DECK TO
SPREAD AFTER THE SUN GOES DOWN...ESPECIALLY IN THE SNAKE RIVER
PLAIN. THINKING THAT THIS DECK WILL LOWER TO AT LEAST MVFR
CONDITIONS TONIGHT BUT NOT SURE HOW WIDESPREAD MVFR CEILING WILL
BE. WITH THE LOW STRATUS AND HIGH LEVEL CLOUDS ALSO UNCERTAIN AS
TO WHERE OR IF FOG WILL DEVELOP. SURFACE WINDS TONIGHT WILL BE
LIGHT. WINDS ALOFT WILL BE SOUTHERLY AROUND 10 KNOTS UP THROUGH
10K FEET MSL.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JA/WH
AVIATION.....JA





000
FXUS65 KBOI 292154
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
254 PM MST THU JAN 29 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY...WE WILL REMAIN ON THE FAR
NORTHERN EDGE OF A LARGE UPPER LEVEL LOW...PRESENTLY CENTERED
OVER SRN CA...THROUGH MIDDAY TOMORROW...THEN SWITCH TO NW FLOW
ALOFT ON THE EAST SIDE OF A DEVELOPING RIDGE FOR FRIDAY NIGHT AND
SATURDAY. THIS WILL KEEP THE AREA PRECIPITATION-FREE AND
STRENGTHEN THE INVERSION THAT HAS BEEN SO PREVALENT THIS MONTH.
MOST OF THE FOG IS GONE...BUT STRATUS COVERS MUCH OF THE LOWER
ELEVATIONS AREAS OF EAST-CENTRAL OREGON AND SW IDAHO. THIS
STRATUS WILL MOVE AND EVOLVE THROUGH SATURDAY...MOST LIKELY
FILLING UP THE VALLEYS FROM AROUND MIDNIGHT TO AROUND NOON...THEN
TAPERING OFF IN THE AFTERNOONS. WINDS WILL REMAIN LIGHT. OUTSIDE
OF THE STRATUS...SKIES WILL BE MOSTLY CLEAR.

.LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...WEAK UPPER LEVEL
RIDGE OVER THE AREA SATURDAY NIGHT WILL FLATTEN INTO ZONAL FLOW
SUNDAY THROUGH MONDAY AS A WEAK UPPER LEVEL TROUGH MOVES THROUGH
THE FLOW. AS THE RIDGE FLATTENS ON SUNDAY A CHANCE OF
PRECIPITATION WILL DEVELOP OVER NORTHERN ZONES AND SPREAD TO TO
THE REST OF THE FORECAST AREA SUNDAY NIGHT AND MONDAY. THERE ARE
DIFFERENCES IN THE MODELS AS TO TIMING OF PRECIPITATION SO WENT
WITH A MODEL BLEND. UPPER LEVEL RIDGE REBUILDS ALONG THE WEST
COAST BEGINNING MONDAY NIGHT AND WILL LINGER OVER THE AREA THROUGH
THE END OF THE WEEK. MOST LOCATIONS WILL BE DRY TUESDAY THROUGH
THURSDAY BUT ENOUGH MOISTURE IN NORTHWESTERLY FLOW OVER THE AREA
AS THE RIDGE BUILDS ALONG THE COAST WILL KEEP A SLIGHT CHANCE OF
PRECIPITATION OVER THE WEST CENTRAL AND BOISE MOUNTAINS.
TEMPERATURES THROUGH THE EXTENDED PERIOD ARE EXPECTED TO REMAIN AT
OR ABOVE NORMAL.

&&

.AVIATION...HIGH LEVEL CLOUDS OVER THE REGION TONIGHT WITH MOSTLY
VFR CONDITIONS. LOCAL MVFR CEILINGS IN THE LOWER VALLEYS HAVE
PERSISTED INTO THE AFTERNOON AND EXPECT THIS STRATUS DECK TO
SPREAD AFTER THE SUN GOES DOWN...ESPECIALLY IN THE SNAKE RIVER
PLAIN. THINKING THAT THIS DECK WILL LOWER TO AT LEAST MVFR
CONDITIONS TONIGHT BUT NOT SURE HOW WIDESPREAD MVFR CEILING WILL
BE. WITH THE LOW STRATUS AND HIGH LEVEL CLOUDS ALSO UNCERTAIN AS
TO WHERE OR IF FOG WILL DEVELOP. SURFACE WINDS TONIGHT WILL BE
LIGHT. WINDS ALOFT WILL BE SOUTHERLY AROUND 10 KNOTS UP THROUGH
10K FEET MSL.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JA/WH
AVIATION.....JA




000
FXUS65 KBOI 292154
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
254 PM MST THU JAN 29 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY...WE WILL REMAIN ON THE FAR
NORTHERN EDGE OF A LARGE UPPER LEVEL LOW...PRESENTLY CENTERED
OVER SRN CA...THROUGH MIDDAY TOMORROW...THEN SWITCH TO NW FLOW
ALOFT ON THE EAST SIDE OF A DEVELOPING RIDGE FOR FRIDAY NIGHT AND
SATURDAY. THIS WILL KEEP THE AREA PRECIPITATION-FREE AND
STRENGTHEN THE INVERSION THAT HAS BEEN SO PREVALENT THIS MONTH.
MOST OF THE FOG IS GONE...BUT STRATUS COVERS MUCH OF THE LOWER
ELEVATIONS AREAS OF EAST-CENTRAL OREGON AND SW IDAHO. THIS
STRATUS WILL MOVE AND EVOLVE THROUGH SATURDAY...MOST LIKELY
FILLING UP THE VALLEYS FROM AROUND MIDNIGHT TO AROUND NOON...THEN
TAPERING OFF IN THE AFTERNOONS. WINDS WILL REMAIN LIGHT. OUTSIDE
OF THE STRATUS...SKIES WILL BE MOSTLY CLEAR.

.LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...WEAK UPPER LEVEL
RIDGE OVER THE AREA SATURDAY NIGHT WILL FLATTEN INTO ZONAL FLOW
SUNDAY THROUGH MONDAY AS A WEAK UPPER LEVEL TROUGH MOVES THROUGH
THE FLOW. AS THE RIDGE FLATTENS ON SUNDAY A CHANCE OF
PRECIPITATION WILL DEVELOP OVER NORTHERN ZONES AND SPREAD TO TO
THE REST OF THE FORECAST AREA SUNDAY NIGHT AND MONDAY. THERE ARE
DIFFERENCES IN THE MODELS AS TO TIMING OF PRECIPITATION SO WENT
WITH A MODEL BLEND. UPPER LEVEL RIDGE REBUILDS ALONG THE WEST
COAST BEGINNING MONDAY NIGHT AND WILL LINGER OVER THE AREA THROUGH
THE END OF THE WEEK. MOST LOCATIONS WILL BE DRY TUESDAY THROUGH
THURSDAY BUT ENOUGH MOISTURE IN NORTHWESTERLY FLOW OVER THE AREA
AS THE RIDGE BUILDS ALONG THE COAST WILL KEEP A SLIGHT CHANCE OF
PRECIPITATION OVER THE WEST CENTRAL AND BOISE MOUNTAINS.
TEMPERATURES THROUGH THE EXTENDED PERIOD ARE EXPECTED TO REMAIN AT
OR ABOVE NORMAL.

&&

.AVIATION...HIGH LEVEL CLOUDS OVER THE REGION TONIGHT WITH MOSTLY
VFR CONDITIONS. LOCAL MVFR CEILINGS IN THE LOWER VALLEYS HAVE
PERSISTED INTO THE AFTERNOON AND EXPECT THIS STRATUS DECK TO
SPREAD AFTER THE SUN GOES DOWN...ESPECIALLY IN THE SNAKE RIVER
PLAIN. THINKING THAT THIS DECK WILL LOWER TO AT LEAST MVFR
CONDITIONS TONIGHT BUT NOT SURE HOW WIDESPREAD MVFR CEILING WILL
BE. WITH THE LOW STRATUS AND HIGH LEVEL CLOUDS ALSO UNCERTAIN AS
TO WHERE OR IF FOG WILL DEVELOP. SURFACE WINDS TONIGHT WILL BE
LIGHT. WINDS ALOFT WILL BE SOUTHERLY AROUND 10 KNOTS UP THROUGH
10K FEET MSL.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JA/WH
AVIATION.....JA





000
FXUS65 KBOI 291650
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
950 AM MST THU JAN 29 2015

.DISCUSSION...VERY LITTLE FOG THIS MORNING...BUT STRATUS COVERS
MOST OF THE MAGIC VALLEY AND MUCH OF THE TREASURE VALLEY. IT ALSO
EXTENDS WELL INTO OWYHEE...BAKER...NORTHERN MALHEUR...AND EXTREME
NORTHEAST HARNEY COUNTIES. THIS WILL DECREASE AS THE DAY WEARS ON
BUT LIKELY COME BACK TONIGHT. ALL THIS IS IN THE FORECAST SO NO
UPDATE PLANNED AT THIS TIME.

&&

.AVIATION...AREAS OF MVFR VALLEY FOG/STRATUS WILL CONTINUE
THROUGH THE MORNING AND WILL LIFT/DISSIPATE TO VFR THIS AFTERNOON...
BUT IT IS POSSIBLE THAT SOME LOCATIONS MAY NOT SEE VFR CONDITIONS.
REST OF THE FORECAST AREA VFR WITH MID AND HIGH LEVEL CLOUDS.
EXPECT VALLEY FOG/STRATUS TO RETURN TONIGHT. SURFACE WINDS TODAY
WILL BE 10 KNOTS OR LESS. WINDS ALOFT WILL BE SOUTHEASTERLY AROUND
10 KNOTS UP THROUGH 10K FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH FRIDAY...UPPER LEVEL RIDGE WILL
DOMINATE THE SHORT TERM ALTHOUGH A PORTION OF AN UPPER TROUGH WILL
CROSS OREGON INTO NV LATER TODAY AND SHIFT FARTHER SOUTH /TO
SOCAL/ FRIDAY. INVERTED TEMPERATURE PROFILE...VALLEY FOG AND
STRATUS FROM AROUND MIDNIGHT THROUGH NOON...ARE EXPECTED TO
CONTINUE. TEMPERATURES WILL AVERAGE ABOVE NORMAL IN THE VALLEYS
AND MUCH ABOVE NORMAL IN THE MOUNTAINS.

LONG TERM...FRIDAY NIGHT THROUGH THURSDAY. WITH A CUT OFF UPPER
LOW OVER THE DESERT SOUTHWEST AND A RIDGE OFF OF THE PACIFIC
COAST...THE AREA WILL BE UNDER A SPLIT FLOW PATTERN THEN A
NORTHWEST FLOW THROUGH SATURDAY. DRY CONDITIONS ARE EXPECTED
DURING THIS TIME. ON SUNDAY THE RIDGE IS EXPECTED TO FLATTEN OUT
AND TRANSITION THE AREA INTO A MORE ZONAL FLOW...WITH SHORTWAVES
EMBEDDED. BOTH THE GFS AND ECMWF ARE SHOWING ONE OF THESE
SHORTWAVES BRINGING PRECIP TO THE AREA ON MONDAY WITH SNOW LEVELS
NEAR 5000-6000FT. THE RIDGE OFF OF THE COAST WILL ONCE AGAIN
AMPLIFY ON TUESDAY AND BEYOND. BOTH MODELS ARE SHOWING SOME
LINGERING MOISTURE FLOWING OVER THE RIDGE AND POTENTIALLY BRINGING
PRECIP TO THE CENTRAL MOUNTAINS...BUT TIMING IS STILL UNCERTAIN.
FORECAST IS LARGELY UNCHANGED FROM PREVIOUS. TEMPERATURES ARE
EXPECTED TO REMAIN AT OR ABOVE NORMAL THROUGH THE PERIOD.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...RD
AVIATION.....RD
PREV SHORT TERM...VM
PREV LONG TERM....EP




000
FXUS65 KBOI 291650
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
950 AM MST THU JAN 29 2015

.DISCUSSION...VERY LITTLE FOG THIS MORNING...BUT STRATUS COVERS
MOST OF THE MAGIC VALLEY AND MUCH OF THE TREASURE VALLEY. IT ALSO
EXTENDS WELL INTO OWYHEE...BAKER...NORTHERN MALHEUR...AND EXTREME
NORTHEAST HARNEY COUNTIES. THIS WILL DECREASE AS THE DAY WEARS ON
BUT LIKELY COME BACK TONIGHT. ALL THIS IS IN THE FORECAST SO NO
UPDATE PLANNED AT THIS TIME.

&&

.AVIATION...AREAS OF MVFR VALLEY FOG/STRATUS WILL CONTINUE
THROUGH THE MORNING AND WILL LIFT/DISSIPATE TO VFR THIS AFTERNOON...
BUT IT IS POSSIBLE THAT SOME LOCATIONS MAY NOT SEE VFR CONDITIONS.
REST OF THE FORECAST AREA VFR WITH MID AND HIGH LEVEL CLOUDS.
EXPECT VALLEY FOG/STRATUS TO RETURN TONIGHT. SURFACE WINDS TODAY
WILL BE 10 KNOTS OR LESS. WINDS ALOFT WILL BE SOUTHEASTERLY AROUND
10 KNOTS UP THROUGH 10K FEET MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH FRIDAY...UPPER LEVEL RIDGE WILL
DOMINATE THE SHORT TERM ALTHOUGH A PORTION OF AN UPPER TROUGH WILL
CROSS OREGON INTO NV LATER TODAY AND SHIFT FARTHER SOUTH /TO
SOCAL/ FRIDAY. INVERTED TEMPERATURE PROFILE...VALLEY FOG AND
STRATUS FROM AROUND MIDNIGHT THROUGH NOON...ARE EXPECTED TO
CONTINUE. TEMPERATURES WILL AVERAGE ABOVE NORMAL IN THE VALLEYS
AND MUCH ABOVE NORMAL IN THE MOUNTAINS.

LONG TERM...FRIDAY NIGHT THROUGH THURSDAY. WITH A CUT OFF UPPER
LOW OVER THE DESERT SOUTHWEST AND A RIDGE OFF OF THE PACIFIC
COAST...THE AREA WILL BE UNDER A SPLIT FLOW PATTERN THEN A
NORTHWEST FLOW THROUGH SATURDAY. DRY CONDITIONS ARE EXPECTED
DURING THIS TIME. ON SUNDAY THE RIDGE IS EXPECTED TO FLATTEN OUT
AND TRANSITION THE AREA INTO A MORE ZONAL FLOW...WITH SHORTWAVES
EMBEDDED. BOTH THE GFS AND ECMWF ARE SHOWING ONE OF THESE
SHORTWAVES BRINGING PRECIP TO THE AREA ON MONDAY WITH SNOW LEVELS
NEAR 5000-6000FT. THE RIDGE OFF OF THE COAST WILL ONCE AGAIN
AMPLIFY ON TUESDAY AND BEYOND. BOTH MODELS ARE SHOWING SOME
LINGERING MOISTURE FLOWING OVER THE RIDGE AND POTENTIALLY BRINGING
PRECIP TO THE CENTRAL MOUNTAINS...BUT TIMING IS STILL UNCERTAIN.
FORECAST IS LARGELY UNCHANGED FROM PREVIOUS. TEMPERATURES ARE
EXPECTED TO REMAIN AT OR ABOVE NORMAL THROUGH THE PERIOD.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...RD
AVIATION.....RD
PREV SHORT TERM...VM
PREV LONG TERM....EP





000
FXUS65 KBOI 290955
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
255 AM MST THU JAN 29 2015

.SHORT TERM...TODAY THROUGH FRIDAY...UPPER LEVEL RIDGE WILL
DOMINATE THE SHORT TERM ALTHOUGH A PORTION OF AN UPPER TROUGH WILL
CROSS OREGON INTO NV LATER TODAY AND SHIFT FARTHER SOUTH /TO
SOCAL/ FRIDAY. SO INVERTED TEMPERATURE PROFILE...VALLEY FOG AND
STRATUS FROM AROUND MIDNIGHT THROUGH NOON...ARE EXPECTED TO
CONTINUE. TEMPERATURES WILL BE AVERAGE ABOVE NORMAL IN THE VALLEYS
AND MUCH ABOVE NORMAL IN THE MOUNTAINS.

.LONG TERM...FRIDAY NIGHT THROUGH THURSDAY. WITH A CUT OFF UPPER
LOW OVER THE DESERT SOUTHWEST AND A RIDGE OFF OF THE PACIFIC
COAST...THE AREA WILL BE UNDER A SPLIT FLOW PATTERN THEN A
NORTHWEST FLOW THROUGH SATURDAY. DRY CONDITIONS ARE EXPECTED
DURING THIS TIME. ON SUNDAY THE RIDGE IS EXPECTED TO FLATTEN OUT
AND TRANSITION THE AREA INTO A MORE ZONAL FLOW...WITH SHORTWAVES
EMBEDDED. BOTH THE GFS AND ECMWF ARE SHOWING ONE OF THESE
SHORTWAVES BRINGING PRECIP TO THE AREA ON MONDAY WITH SNOW LEVELS
NEAR 5000-6000FT. THE RIDGE OFF OF THE COAST WILL ONCE AGAIN
AMPLIFY ON TUESDAY AND BEYOND. BOTH MODELS ARE SHOWING SOME
LINGERING MOISTURE FLOWING OVER THE RIDGE AND POTENTIALLY BRINGING
PRECIP TO THE CENTRAL MOUNTAINS...BUT TIMING IS STILL UNCERTAIN.
FORECAST IS LARGELY UNCHANGED FROM PREVIOUS. TEMPERATURES ARE
EXPECTED TO REMAIN AT OR ABOVE NORMAL THROUGH THE PERIOD.

&&

.AVIATION...AREAS OF IFR/MVFR FOG/STRATUS WILL CONTINUE THROUGH MID
MORNING IN VALLEY LOCATIONS...THEN MOST AREAS WILL RETURN TO VFR.
OTHER LOCATIONS VFR THROUGH THE PERIOD. ANOTHER ROUND OF VALLEY
FOG/STRATUS IS POSSIBLE AFTER 30/03Z. SURFACE WINDS GENERALLY 10KTS
OR LESS...WITH MAGIC VALLEY AT 15 KTS OR LESS. WINDS ALOFT NEAR 10K
FT MSL...SOUTH AT 5-10KTS...THEN AFTER 30/06Z NORTHEAST AT
5-10KTS.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...VM
LONG TERM....EP
AVIATION.....EP





000
FXUS65 KBOI 290331
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
831 PM MST WED JAN 28 2015

.DISCUSSION...INVERSION CONTINUES WITH MILD DRY WX AT HIGH
ELEVATIONS AND RELATIVELY COLD AIR IN THE VALLEYS WITH FOG/STRATUS
DURING THE NIGHTS AND MORNINGS.  THIS EVENING WE SEE FOG/STRATUS IN
THE WRN MAGIC VALLEY SPREADING WWD TO NEAR GLENNS FERRY AS OF 8 PM
MST...AND SHOULD CONTINUE TO SPREAD WWD THROUGH THE NIGHT REACHING A
MAXIMUM AGAIN BETWEEN 6 AM AND 10 AM MST.  NOT AS MOIST IN THE
VALLEYS AS LAST NIGHT WHEN PCPN FELL...BUT TONIGHT IS COLDER AND FOG
SHOULD FORM ANYWAY.  CURRENT FORECAST EXPECTS DENSEST FOG IN THE
LOWER TREASURE VALLEY AND VALLEYS OF ERN OREGON BUT ONLY PATCHY
COVERAGE.  THE BAD NEWS IS THAT THE LONG WAVE UPPER RIDGE AND
INVERSION CONDITIONS COULD LAST ANOTHER TEN DAYS OVER WRN NORTH
AMERICA...ACCORDING TO BOTH THE GFS AND ECM MODELS. SHORT WAVE
TROUGHS WILL WEAKEN AS THEY PASS THROUGH THE LONG WAVE RIDGE
RESLUTING IN ONLY LIGHT PCPN...WITH THE NEXT TROUGH DUE ON MONDAY.
NO UPDATES AT THIS TIME.

&&

.AVIATION...EXPECT DETERIORATING CONDITIONS THROUGH THIS EVENING...
WITH IFR/LIFR FOG AND STRATUS BECOMING WIDESPREAD BY 06Z IN THE
SNAKE RIVER VALLEY...THE CENTRAL IDAHO MOUNTAIN VALLEYS...AND THE
LOWER ELEVATIONS OF EASTERN OREGON...PERSISTING THROUGH THURSDAY
MORNING. EXPECT IMPROVING CONDITIONS AFTER 18Z WITH FOG AND STRATUS
DISSIPATING FROM KBOI EAST AND NORTH...AND BECOMING PATCHY WEST OF
KBOI. WINDS WILL BE VARIABLE 10 KTS OR LESS FROM THE SURFACE UP
THROUGH 10K FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH FRIDAY...WEAK RIDGING ALOFT WILL MOVE
THROUGH OVERNIGHT...FOLLOWED BY THE NORTHERN EDGE OF A DEEP TROUGH
THAT WILL MOVE THROUGH THE DESERT SW. A NEW SHARP RIDGE AXIS WILL
SWING IN FROM THE NORTH LATE FRIDAY. OVERALL...THIS LEAVES US WITH
LIGHT WINDS ALOFT AND LITTLE REASON TO LOSE THE MOIST LOW-LEVEL
ATMOSPHERE. THIS MEANS MORE FOG AND LOW CLOUDS FOR MANY VALLEY
LOCATIONS OVER THE NEXT TWO DAYS. WE EXPECT FOG AND/OR LOW CLOUDS TO
REDEVELOP TONIGHT IN THE SNAKE RIVER VALLEY. THE ONLY PLACE ABLE TO
HOLD ON TO THEM AS OF 230 PM MST WAS THE NORTHERN PORTION OF THE
WESTERN MAGIC VALLEY...MAINLY NEAR AND NORTH OF JEROME. THIS AREA
WILL LIKELY SPREAD BACK TO THE WEST OVERNIGHT AS LIGHT EAST TO
SOUTHEAST WINDS DEVELOP IN THE SNAKE RIVER VALLEY. WE ALSO EXPECT
GROWTH OF THE FOG/STRATUS WEST INTO SE OREGON OVERNIGHT...LIKELY
BUILDING BACK INTO BURNS AND BAKER CITY...FOR EXAMPLE. THE LOCATION
OF THE FOG IS HARDER TO PREDICT FOR TOMORROW NIGHT AND FRIDAY...WITH
MODELS DISAGREEING ON HOW EXTENSIVE THE COVERAGE WILL BE. FOR
NOW...WENT WITH A MIX OF PERSISTENCE AND AN EXPECTATION THAT MORE
FOG WILL REMAIN OVER SE OREGON THAN IS THERE THIS AFTERNOON. AS
ALWAYS...TEMPS ARE HIGHLY DEPENDENT ON WHERE THE FOG/STRATUS FORM
AND STAY. OVERALL TEMPS WILL BE A LITTLE ABOVE NORMAL TOMORROW AND
FRIDAY...EXCEPT WHERE FOG/STRATUS REMAIN INTO THE AFTERNOON.
THERE...TEMPS WILL BE A LITTLE BELOW NORMAL.

LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...DRY CONDITIONS OVER THE
REGION FRIDAY NIGHT THROUGH SATURDAY NIGHT AS THE FORECAST AREA IS
UNDER A SPLIT FLOW PATTERN WITH A CUTOFF LOW OVER THE DESERT
SOUTHWEST AND A WEAK SYSTEM DROPPING OUT OF CANADA EAST OF THE
CONTINENTAL DIVIDE. AS THE CUTOFF LOW OVER THE DESERT SOUTHWEST
SHIFTS EAST WILL SEE INCREASING CLOUDS OVER SOUTHWEST IDAHO BUT ANY
PRECIPITATION WILL REMAIN SOUTH AND EAST OF THE FORECAST AREA. FOR
SUNDAY AND INTO NEXT WEEK THE MODELS ARE IN BETTER AGREEMENT WITH
THE WEATHER PATTERN. AS THE LOW SHIFTS TO THE EAST THE FLOW OVER THE
FORECAST AREA WILL TRANSITION TO A ZONAL FLOW WITH A WEAK SHORTWAVE
TROUGH MOVING THROUGH THE FLOW. MOISTURE MOVING THROUGH THE FLOW
WILL BRING CLOUDS TO THE FORECAST AREA SUNDAY WITH A CHANCE OF
PRECIPITATION OVER BAKER COUNTY AND THE WEST CENTRAL AND BOISE
MOUNTAINS. AS A WEAK SHORTWAVE TROUGH MOVES THROUGH THE FLOW WILL
SEE THE CHANCE OF PRECIPITATION MOVE SOUTH WITH A SLIGHT CHANCE OF
PRECIPITATION OVER SOUTHERN ZONES BY MONDAY. PRECIPITATION WILL
DECREASE OVER THE AREA MONDAY NIGHT BUT ENOUGH MOISTURE IN THE FLOW
WILL REMAIN TO KEEP AT LEAST SLIGHT CHANCE POPS OVER THE FORECAST
AREA MONDAY NIGHT THROUGH WEDNESDAY. TEMPERATURES ARE EXPECTED TO
REMAIN AT OR ABOVE NORMAL THROUGH THE EXTENDED PERIOD.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
LONG TERM......JA/WH





000
FXUS65 KBOI 290331
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
831 PM MST WED JAN 28 2015

.DISCUSSION...INVERSION CONTINUES WITH MILD DRY WX AT HIGH
ELEVATIONS AND RELATIVELY COLD AIR IN THE VALLEYS WITH FOG/STRATUS
DURING THE NIGHTS AND MORNINGS.  THIS EVENING WE SEE FOG/STRATUS IN
THE WRN MAGIC VALLEY SPREADING WWD TO NEAR GLENNS FERRY AS OF 8 PM
MST...AND SHOULD CONTINUE TO SPREAD WWD THROUGH THE NIGHT REACHING A
MAXIMUM AGAIN BETWEEN 6 AM AND 10 AM MST.  NOT AS MOIST IN THE
VALLEYS AS LAST NIGHT WHEN PCPN FELL...BUT TONIGHT IS COLDER AND FOG
SHOULD FORM ANYWAY.  CURRENT FORECAST EXPECTS DENSEST FOG IN THE
LOWER TREASURE VALLEY AND VALLEYS OF ERN OREGON BUT ONLY PATCHY
COVERAGE.  THE BAD NEWS IS THAT THE LONG WAVE UPPER RIDGE AND
INVERSION CONDITIONS COULD LAST ANOTHER TEN DAYS OVER WRN NORTH
AMERICA...ACCORDING TO BOTH THE GFS AND ECM MODELS. SHORT WAVE
TROUGHS WILL WEAKEN AS THEY PASS THROUGH THE LONG WAVE RIDGE
RESLUTING IN ONLY LIGHT PCPN...WITH THE NEXT TROUGH DUE ON MONDAY.
NO UPDATES AT THIS TIME.

&&

.AVIATION...EXPECT DETERIORATING CONDITIONS THROUGH THIS EVENING...
WITH IFR/LIFR FOG AND STRATUS BECOMING WIDESPREAD BY 06Z IN THE
SNAKE RIVER VALLEY...THE CENTRAL IDAHO MOUNTAIN VALLEYS...AND THE
LOWER ELEVATIONS OF EASTERN OREGON...PERSISTING THROUGH THURSDAY
MORNING. EXPECT IMPROVING CONDITIONS AFTER 18Z WITH FOG AND STRATUS
DISSIPATING FROM KBOI EAST AND NORTH...AND BECOMING PATCHY WEST OF
KBOI. WINDS WILL BE VARIABLE 10 KTS OR LESS FROM THE SURFACE UP
THROUGH 10K FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TONIGHT THROUGH FRIDAY...WEAK RIDGING ALOFT WILL MOVE
THROUGH OVERNIGHT...FOLLOWED BY THE NORTHERN EDGE OF A DEEP TROUGH
THAT WILL MOVE THROUGH THE DESERT SW. A NEW SHARP RIDGE AXIS WILL
SWING IN FROM THE NORTH LATE FRIDAY. OVERALL...THIS LEAVES US WITH
LIGHT WINDS ALOFT AND LITTLE REASON TO LOSE THE MOIST LOW-LEVEL
ATMOSPHERE. THIS MEANS MORE FOG AND LOW CLOUDS FOR MANY VALLEY
LOCATIONS OVER THE NEXT TWO DAYS. WE EXPECT FOG AND/OR LOW CLOUDS TO
REDEVELOP TONIGHT IN THE SNAKE RIVER VALLEY. THE ONLY PLACE ABLE TO
HOLD ON TO THEM AS OF 230 PM MST WAS THE NORTHERN PORTION OF THE
WESTERN MAGIC VALLEY...MAINLY NEAR AND NORTH OF JEROME. THIS AREA
WILL LIKELY SPREAD BACK TO THE WEST OVERNIGHT AS LIGHT EAST TO
SOUTHEAST WINDS DEVELOP IN THE SNAKE RIVER VALLEY. WE ALSO EXPECT
GROWTH OF THE FOG/STRATUS WEST INTO SE OREGON OVERNIGHT...LIKELY
BUILDING BACK INTO BURNS AND BAKER CITY...FOR EXAMPLE. THE LOCATION
OF THE FOG IS HARDER TO PREDICT FOR TOMORROW NIGHT AND FRIDAY...WITH
MODELS DISAGREEING ON HOW EXTENSIVE THE COVERAGE WILL BE. FOR
NOW...WENT WITH A MIX OF PERSISTENCE AND AN EXPECTATION THAT MORE
FOG WILL REMAIN OVER SE OREGON THAN IS THERE THIS AFTERNOON. AS
ALWAYS...TEMPS ARE HIGHLY DEPENDENT ON WHERE THE FOG/STRATUS FORM
AND STAY. OVERALL TEMPS WILL BE A LITTLE ABOVE NORMAL TOMORROW AND
FRIDAY...EXCEPT WHERE FOG/STRATUS REMAIN INTO THE AFTERNOON.
THERE...TEMPS WILL BE A LITTLE BELOW NORMAL.

LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...DRY CONDITIONS OVER THE
REGION FRIDAY NIGHT THROUGH SATURDAY NIGHT AS THE FORECAST AREA IS
UNDER A SPLIT FLOW PATTERN WITH A CUTOFF LOW OVER THE DESERT
SOUTHWEST AND A WEAK SYSTEM DROPPING OUT OF CANADA EAST OF THE
CONTINENTAL DIVIDE. AS THE CUTOFF LOW OVER THE DESERT SOUTHWEST
SHIFTS EAST WILL SEE INCREASING CLOUDS OVER SOUTHWEST IDAHO BUT ANY
PRECIPITATION WILL REMAIN SOUTH AND EAST OF THE FORECAST AREA. FOR
SUNDAY AND INTO NEXT WEEK THE MODELS ARE IN BETTER AGREEMENT WITH
THE WEATHER PATTERN. AS THE LOW SHIFTS TO THE EAST THE FLOW OVER THE
FORECAST AREA WILL TRANSITION TO A ZONAL FLOW WITH A WEAK SHORTWAVE
TROUGH MOVING THROUGH THE FLOW. MOISTURE MOVING THROUGH THE FLOW
WILL BRING CLOUDS TO THE FORECAST AREA SUNDAY WITH A CHANCE OF
PRECIPITATION OVER BAKER COUNTY AND THE WEST CENTRAL AND BOISE
MOUNTAINS. AS A WEAK SHORTWAVE TROUGH MOVES THROUGH THE FLOW WILL
SEE THE CHANCE OF PRECIPITATION MOVE SOUTH WITH A SLIGHT CHANCE OF
PRECIPITATION OVER SOUTHERN ZONES BY MONDAY. PRECIPITATION WILL
DECREASE OVER THE AREA MONDAY NIGHT BUT ENOUGH MOISTURE IN THE FLOW
WILL REMAIN TO KEEP AT LEAST SLIGHT CHANCE POPS OVER THE FORECAST
AREA MONDAY NIGHT THROUGH WEDNESDAY. TEMPERATURES ARE EXPECTED TO
REMAIN AT OR ABOVE NORMAL THROUGH THE EXTENDED PERIOD.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....JT
PREV SHORT TERM...SP
LONG TERM......JA/WH




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