Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 300931
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
331 AM MDT SUN AUG 30 2015

.SHORT TERM...TODAY THROUGH TUESDAY. THE FRONT WILL BE THROUGH
EASTERN IDAHO BEFORE SUNRISE. AN AREA OF STORMS IS MOVING EAST
INTO WYOMING ALONG AND BEHIND IT. BACK TO THE WEST...A BAND OF
SHOWERS AND COUPLE OF STORMS WILL SHIFT NORTH AND EAST DURING THE
DAY...REST OF THE STORM SKIRTS TO OUR NORTH. BY AFTERNOON...A FEW
SHOWERS AND STORMS WILL REMAIN ALONG THE WYOMING BORDER DOWN TO
BEAR LAKE WITH ANOTHER AREA OF ISOLATED ACTIVITY ACROSS NORTHERN
CUSTER COUNTY OVER TO WEST OF MONIDA. IT WILL BE BREEZY AGAIN
TODAY...BUT NOT QUITE AS STRONG AND WIDESPREAD AS SATURDAY. WINDS
OF 25-40 MPH ARE STILL POSSIBLE THOUGH ACROSS PORTIONS OF THE
UPPER SNAKE PLAIN AND HIGHLANDS...THE CENTRAL MOUNTAINS AND
RIDGETOPS DOWN SOUTH. IT WILL BE COOLER BY ABOUT 10-15 DEGREES
THIS AFTERNOON.

MONDAY AND TUESDAY WILL BE MOSTLY DRY AS THE PATTERN RELOADS
ALONG THE WEST COAST OF BRITISH COLUMBIA AND PACIFIC. WE SHOULD
SEE SOME OCCASIONAL CLOUDS AND POSSIBLY A SHOWER OR STORM AROUND
DRIGGS DOWN TO BEAR LAKE IN THE MOUNTAINS ON TUESDAY. IT WILL
STILL BE BREEZY ESPECIALLY AT HIGHEST ELEVATIONS. TEMPERATURES
WILL RETURN TO WIDESPREAD 70S AND 80S. KEYES

.LONG TERM...WEDNESDAY THROUGH SUNDAY...WEAK COLD FRONT EXPECTED TO
PASS THROUGH WEDNESDAY WITH NOT MUCH IN THE WAY OF PRECIPITATION.
SLIGHT DECREASES TO TEMPERATURES ARE EXPECTED. CONFIDENCE IS
BUILDING IN DEEPENING UPPER TROUGH THURSDAY AND FRIDAY THEREFORE
HAVE INCREASED CHANCES FOR RAIN AND THUNDERSTORMS...MAINLY ON
FRIDAY. A RATHER DRAMATIC DECREASE IN TEMPERATURES IS FORECAST WITH
THIS FEATURE. HIGHS IN THE LOW 70S FORECAST FOR FRIDAY AND 60S IN
THE LOWER VALLEYS AND CENTRAL MOUNTAINS. LOW TEMPERATURES AT OR
NEAR FREEZING POSSIBLE OVER THE WEEKEND. THE TROUGH TO THEN SLOWLY
EXIT THE REGION OVER NEXT WEEKEND AND HIGH PRESSURE WILL BUILD.
PETERSON

&&

.AVIATION...A BAND OF SHOWERS AND ISOLATED STORMS WILL CONTINUE TO
SHIFT ACROSS EASTERN IDAHO TODAY. THIS SHOULD MAIN AFFECT KSUN AND
KIDA BUT COULD CLIP KBYI AND KPIH IF THE SOUTHERN END STAYS A BIT
FARTHER SOUTH THAN CURRENTLY FORECAST. THERE COULD STILL BE SOME
WINDS GUSTS OVER 30KTS ALONG WITH A DOWNPOUR. EXPECT VFR WEATHER
UNLESS WE GET A HEAVY ENOUGH DOWNPOUR TO DROP THINGS TO MVFR. IT
WILL BE BREEZY BEHIND THE FRONT BUT NOT AS WIDESPREAD AND SLIGHTLY
WEAKEROVERALL. WINDS PROBABLY WON`T BE AN ISSUE AT KSUN...BUT
SOUTHWEST WINDS OF 12-25KTS ARE EXPECTED AT KBYI/KPIH/KIDA BY
AFTERNOON AND LASTING UNTIL SUNSET. KEYES

&&

.FIRE WEATHER...THE COLD FRONT IS TO OUR EAST NOW BUT WE STILL ARE
LOOKING AT SHOWERS AND ISOLATED STORMS TODAY. THE FIRST BAND WILL
BE OUT OF IDAHO VERY SOON IF NOT ALREADY. THE SECOND BAND SHIFTS
NORTH AND EAST. IT APPEARS RIGHT NOW THAT MOST OF THE MAGIC
VALLEY...LOWER SNAKE PLAIN AND SOUTHERN HIGHLANDS SHOULD MISS
MOST OF THIS AS IT MOVES THROUGH. WINDS WILL BE BREEZY TODAY...BUT
NOT AS WIDESPREAD. GUSTS OF 25-40 MPH ARE FORECAST FOR MOST OF THE
CENTRAL MOUNTAINS AND UPPER SNAKE HIGHLANDS. A GOOD CHUNK OF THE
SNAKE PLAIN/ZONE 410 ALSO FALLS INTO THIS CATEGORY. THE REST OF
THE AREA MAY SEE LOCALIZED GUSTS ABOVE 25MPH. HUMIDITY VALUES WILL
BE BORDERLINE AGAIN BUT SOME PLACES WILL LIKELY REPEAT AT/BELOW 15
PERCENT. FOR NOW...WE WILL NOT ADVERTISE RED FLAG CONDITIONS BUT
COULD EASILY ISSUE A NEW SET OF STATEMENTS LATER IF THINGS CHANGE
OR COORDINATION WITH DISPATCH CENTERS AND/OR IMETS CALLS FOR
SOMETHING. THE EARLY PART OF THIS WEEK STILL LOOKS INCREASINGLY
DRIER AND WARMER. SMALLER POCKETS OF 25-30MPH GUSTS ARE POSSIBLE
MONDAY...WITH WINDS PICKING UP AGAIN TUESDAY. THAT COULD POTENTIAL
BE ANOTHER CRITICAL FIRE DAY FOR THE CENTRAL MOUNTAINS. KEYES


&&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$


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