Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 282034
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
ISSUED BY NATIONAL WEATHER SERVICE BOISE ID
234 PM MDT WED SEP 28 2016

.DISCUSSION...WEDNESDAY NIGHT THROUGH SATURDAY. MOISTURE AROUND AN
UPPER-LEVEL LOW OVER SOUTHERN CALIFORNIA WILL SPREAD UP OVER THE
SOUTHEAST PART OF THE FORECAST AREA TONIGHT, AND THEN SPREAD INTO
THE REST OF THE FORECAST AREA ON THURSDAY. SCATTERED SHOWERS, WITH
ISOLATED AFTERNOON AND EVENING THUNDERSTORMS EXPECTED WITH THIS
MOISTURE. SOUTHWESTERLY FLOW ALOFT STARTS TO INCREASE ON FRIDAY
WHICH MAY DECREASE THE SHOWER THREAT JUST SLIGHTLY COMPARED TO
THURSDAY. BUT ON SATURDAY, AN APPROACHING SHORTWAVE AROUND A LOW
OFF THE PACIFIC NORTHWEST WILL INCREASE THE PRECIP THREAT AGAIN.
TEMPERATURES WILL SLOWLY START TO DECREASE, ESPECIALLY ON SATURDAY
AS THE EFFECTS OF THE APPROACHING PACIFIC LOW TAKE HOLD.
&&

.AVIATION...MAINLY VFR, BUT WITH SOME SHOWERS STARTING TO SPREAD
INTO THE MOUNTAINS SOUTHEAST OF KPIH OVERNIGHT. THEN SHOWERS WILL
INCREASE ON THURSDAY, WITH SOME AREAS OF MVFR CEILINGS ESPECIALLY
OVER THE MOUNTAINS.
&&

.LONG_TERM...SUNDAY THROUGH WEDNESDAY. THE LOW OFF THE PACIFIC
COAST WILL MOVE INLAND AND BRING MUCH COOLER AIR TO THE FORECAST
AREA. MODEL SOLUTIONS CONTINUE TO BOUNCE AROUND WITH HOW MUCH
PRECIPITATION WILL FALL DURING THIS PERIOD, BUT CERTAINLY BELIEVE
THAT IT WILL BE A COOL AND UNSETTLED PERIOD NO MATTER WHICH MODEL
YOU BELIEVE.
&&

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

$$



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