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000
FXUS65 KPIH 212101
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
ISSUED BY NATIONAL WEATHER SERVICE BOISE ID
200 PM MST WED JAN 21 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY... BIGGEST IMPACT IN THE SHORT
TERM WILL BE THE EXTENT OF THE STRATUS/FOG TONIGHT. LATEST SATELLITE
IMAGERY AND WEB CAMS SHWOING BLANKET OF ST/FOG IDAHO FALLS AND
REXBURG BACK TO THE SOUTHWEST TOWARDS BURLEY...ALTHOUGHT CLEARING
ALONG THE SOUTHWEST EDGE. SHOULD SEE AREAS OF FOG ONCE AGAIN TONIGHT
WITH SOME AREAS LOWERING TO UNDER 1/4 VIS.  THIS AS THE INVERSION
REMAINS STRONG FOR ANOTHER NIGHT. MODELS IN GOOD AGREEMENT SHOWING A
WEAK UPPER WAVE MOVING OVER THE RIDGE EARLY FRIDAY MORNING WITH ONLY
MEAGER CHANCES OF LIGHT PRECIP OVER THE HIGHER MOUNTAINS ACROSS THE
NORTH. THIS MAY HELP TO WEAKEN THE VALLEY INVERSION BRINGING LESS
AERIAL EXTENT OF THE FOG.

LONG TERM...FRIDAY NIGHT THROUGH THURSDAY... MODELS CONTINUE TO BE
IN GOOD AGFREEMENT BY BUILDING ANOTHER RIDGE OVER THE REGION THROUGH
THE WEEKEND. LOW CLOUDS SHOULD CONTINUE ACROSS THE SNAKE RIVER
VALLEY THROUGH THE WEEKEND BUT SUNNY SKIES OUTSIDE OF THE VALLEY.
MODELS ALSO AGREE THAT THE FLOW OPENS UP FROM THE SOUTHWEST AS AN
UPPER LOW LIFTS OUT OF BAJA BY TUESDAY. WARMING TEMPERATURES ARE
EXPECTED INTO NEXT WEEK. WITH THIS FLOW...SNOW LEVELS SHOULD BE VERY
HIGH AT OVER 9000 FT...AND THE WEATHER SHOULD BE MORE ACTIVE MID TO
LATE WEEK.

&&

.AVIATION...THE LIFR/IFR IN FOG AND LOW STRATUS OVER THE UPPER SNAKE
BASIN WILL CONTINUE TO EVOLVE OVERNIGHT. MOST AREAS WILL SEE LOW
MVFR TO IFR CONDITIONS AGAIN BY THURSDAY MORNING. SURFACE WINDS WILL
REMAIN LESS THAN 10 KTS AT MOST SITES OVERNIGHT WITH NORTHERLY WINDS
ALOFT TO 20 KTS AT 10K FEET MSL.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE


$$