Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 220843
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
243 AM MDT SAT AUG 22 2015

.DISCUSSION...DRY NORTHWESTERLY FLOW IS SETTLING AGAIN OVER IDAHO
WHILE AN UPPER TROUGH EXITS INTO CENTRAL MONTANA TO OUR NORTH.
LESS BREEZY CONDITIONS EXPECTED TODAY AS UPPER RIDGING BEGINS TO
BUILD BACK INTO THE AREA FROM THE WEST. COLD OVERNIGHT LOWS
TONIGHT WITH TEMPS DROPPING TO NEAR FREEZING IN THE UPPER SNAKE
HIGHLANDS UNDER CLEAR SKIES AND LIGHT WINDS. EXTENSIVE AREAS OF
SMOKE WILL REMAIN OVER THE STATE AT LEAST THROUGH THE WEEKEND.
TEMPERATURES WILL START TO RISE EARLY NEXT WEEK AS UPPER RIDGING
INTENSIFIES. FORECAST IS MAINLY DRY...BUT MODELS ARE SUGGESTING A
RETURN OF MONSOON MOISTURE POSSIBLY AS EARLY AS TUESDAY WITH
SLIGHTLY GREATER CHANCES WEDNESDAY AND THURSDAY. HINSBERGER
&&

.AVIATION...MAINLY LIGHT WINDS TODAY AND SUNDAY. THE STRONG WINDS ON
FRIDAY GREATLY THINNED THE SMOKE FROM WILD FIRES OUT. WILL SEE WHAT
THOSE FIRES BRING TODAY. RS

&&

.FIRE WEATHER...GENERALLY SUNNY SKIES AND LIGHT WINDS TODAY AS A
RIDGE OF HIGH PRESSURE BEGINS TO RE BUILD OVER NEVADA AND OREGON.
THIS RIDGE WILL MOVE OVER IDAHO ON SUNDAY AND CONTINUE TO GAIN
STRENGTH ON MONDAY. HIGH TEMPERATURES TODAY WILL BE 6 TO 11 DEGREES
COOLER FOLLOWING THE COLD FRONTAL PASSAGE ON FRIDAY. BY SUNDAY...
VALLEY TEMPERATURES REBOUND SHARPLY TO THE LOWER AND MIDDLE
80S...AND BY MONDAY REACH THE MIDDLE 80S TO LOWER 90S.
MEANWHILE...AFTERNOON HUMIDITY WILL TREND DOWN 2 TO 3 PERCENT THE
NEXT COUPLE OF DAYS. THERE IS SOME HINT OF MONSOON MOISTURE MAKING
IT BACK INTO IDAHO BY TUESDAY...BUT MODEL CONSENSUS LEANS MORE
TOWARDS WEDNESDAY AND THURSDAY WITH THUNDERSTORMS MOSTLY ISOLATED IN
COVERAGE. RS

&&

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

$$


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