Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 310946
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
246 AM MST SUN JAN 31 2016

.SHORT TERM...TODAY THROUGH MONDAY NIGHT. THE BEGINNING OF THE
SHORT TERM PERIOD WILL SEE A MEAN TROUGH IN PLACE ACROSS THE
INTERMOUNTAIN WEST AS A STRONG AREA OF LOW PRESSURE SWINGS
EASTWARD THROUGH THE FOUR-CORNERS REGION. THE PRESENCE OF THE
TROUGH ALONG WITH SOME LINGERING MOISTURE AND NORTHWEST FLOW WILL
PROVIDE FOR ADDITIONAL LIGHT SNOW SHOWERS...PARTICULARLY ACROSS
THE EASTERN HIGHLANDS TODAY. ADDITIONAL ACCUMULATIONS WILL BE
MINOR...WITH AN INCH OR TWO AT MID AND UPPER SLOPES. SE IDAHO WILL
BE NEAR THE NORTHERN FRINGE OF THE STRONG FOUR-CORNERS LOW MONDAY
AND AT THIS TIME ONLY SOME LIGHT SNOW SHOWER ACTIVITY IS EXPECTED
IN ASSOCIATION WITH THIS SYSTEM...AND MAINLY ACROSS THE ID PORTION
OF THE WASATCH. THE BIGGER IMPACT WITH THIS LOW WILL COME VIA AN
INCREASE IN NORTHERLY WINDS MONDAY AND TUESDAY AS THE PRESSURE
GRADIENT TIGHTENS. THIS WILL CREATE SOME BITTERLY COLD WIND
CHILLS AND PERHAPS SOME LOCAL BLOWING AND DRIFTING SNOW MONDAY
INTO MONDAY NIGHT. COOL NORTHWESTERLY FLOW ALOFT WILL TAKE HOLD
BY MONDAY...ENSURING A CONTINUATION OF BELOW AVERAGE TEMPERATURES
ALONG WITH OCCASIONAL LIGHT SNOW SHOWERS MAINLY FOR HIGHLAND
AREAS. AD/VALLE

.LONG TERM...WEDNESDAY THROUGH SUNDAY.

NORTHWEST FLOW IS EXPECTED FOR MUCH OF THE LONG TERM. CONTINUING
CHANCE FOR SNOW TUESDAY AND WEDNESDAY. SYSTEMS LOOK PRETTY WEAK BUT
THERE MAY BE ENOUGH MOISTURE TO PRODUCE SOME LIGHT SNOW ESPECIALLY
ACROSS THE MOUNTAINS AND HIGHLANDS...AND POSSIBLY ALONG NORTHWEST
FACING PORTIONS OF THE SNAKE PLAIN. MODELS SHOW ANOTHER SYSTEM
ARRIVING FOR THURSDAY/FRIDAY. BUT MODELS HAVE BEEN VERY INCONSISTENT
RUN TO RUN WITH THIS SYSTEM. MADE VERY LITTLE CHANGE TO THE FORECAST
FOR THESE TWO DAYS UNTIL SEE SOME BETTER CONSISTENCY. RIDGE MAY
BUILD INTO THE REGION FOR THE WEEKEND. CUT BACK THE SNOW CHANCES
SOME BUT WANT TO SEE A FEW MORE RUNS BEFORE COMMITTING TO A DRY
FORECAST FOR NEXT WEEKEND.

VALLE


&&

.AVIATION...LOT OF LOW LEVEL MOISTURE RUNNING AROUND THIS MORNING.
THIS HAS FORMED A STRATUS DECK OVER MANY OF THE SNAKE PLAIN/MAGIC
VALLEY TAF SITES. EXPECT MUCH OF THE STRATUS TO LIFT THIS AFTERNOON
BUT COULD REFORM THIS EVENING.

VALLE
LOT OF LOW LEVEL MOISTURE RUNNING AROUND THIS MORNING.
THIS HAS FORMED A STRATUS DECK OVER MANY OF THE SNAKE PLAIN/MAGIC
VALLEY TAF SITES. EXPECT MUCH OF THE STRATUS TO LIFT THIS AFTERNOON
BUT COULD REFORM THIS EVENING.

VALLE

&&

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

$$


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