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000
FXUS65 KPIH 282009
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
109 PM MST THU NOV 28 2013

.SHORT TERM...TONIGHT THROUGH SUNDAY. THE UPPER RIDGE WHICH HAS
DOMINATED THE WEST OVER THE PAST FEW DAYS HAS BEEN PUSHED OFF TO
THE SE TODAY BY THE SPLIT FLOW PATTERN NOW TAKING OVER. THE
SOUTHERN STREAM UPPER LOW OFF THE SOUTHERN CA COAST WILL GRADUALLY
DIG TO THE SW AND NOT IMPACT ID WEATHER. A MINOR NORTHERN STREAM
WAVE WILL MOVE THRU ID ON SAT...BRINGING LIGHT SNOW TO THE MTNS
AND ISOLD LIGHT RAIN SHOWERS TO THE VALLEYS THRU SAT NIGHT. BEST
CHANCES FOR PRECIP WILL BE THE CENTRAL MTNS AND EASTERN HIGHLANDS.
THE UPPER SNAKE HIGHLANDS SHOULD SEE THE MOST SNOW WITH A FEW
INCHES POSSIBLE.

A MAJOR UPPER SYSTEM ENTERS THE PICTURE OVER BC AND BEGINS TO MOVE
INTO THE PAC NW ON SUNDAY. THIS WILL SPREAD SNOW OVER THE MTNS ON
SUNDAY...INCREASING IN COVERAGE BY LATE AFTERNOON. ISOLD RAIN
SHOWERS ARE POSSIBLE IN THE VALLEYS.

TEMPS WILL REMAIN MILD THRU SUNDAY. HEDGES

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY. UPPER LOW WILL
CONTINUE TO DIG SOUTH ALONG THE BC COAST SUNDAY INTO MONDAY. SE
IDAHO WILL BE IN A WESTERLY FLOW THEN SOUTHEASTERLY BY TUESDAY.
MODELS CONTINUE TO FLIP FLOP ON TIMING OF KEY FEATURES. LATEST GFS
HAS FRONT COMING THROUGH MONDAY AFTERNOON AND PLACEMENT OF FLOW
WILL DETERMINE HOW COLD IT WILL GET BEHIND THE FRONT. DID NOT MAKE
ANY MAJOR CHANGES TO THE INHERITED FORECAST. STILL ANTICIPATING
MOUNTAIN SNOW BEGINNING ON MONDAY AND SPREADING THROUGH EARLY
TUESDAY...WITH THE CENTRAL MOUNTAINS AND EASTERN HIGHLANDS GETTING
THE BULK OF PRECIP WITH THE UPSLOPE FLOW. SNOW SHOWERS LOOK TO
CONTINUE THROUGH TUESDAY AND TAPER OFF EARLY WEDNESDAY. BREEZY
CONDITIONS EXPECTED BOTH MONDAY AND TUESDAY AFTERNOONS BUT NOT
LOOKING TO BE HEADLINE WORTHY. MODELS STILL TRENDING TOWARDS A
TROUGH DOMINATING THE WESTERN THIRD OF THE U.S. FOR THE END OF THE
WEEK WITH TEMPERATURES BELOW NORMAL. EP

&&

.AVIATION...VFR CONDITIONS WITH LIGHT WINDS AND HIGH LEVEL CLOUDS
ANTICIPATED THROUGH THE PERIOD. EP

&&

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

$$