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000
FXUS65 KPIH 292004
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
104 PM MST FRI NOV 29 2013

.SHORT TERM...TONIGHT THROUGH MONDAY. STARTING TO SEE THE SIGNS OF
PAC MOISTURE MOVING INTO THE NW THIS AFTERNOON AS A MINOR WAVE
MOVES THRU THE NORTHERN STREAM. LIGHT SNOW IS EXPECTED TO DEVELOP
OVER THE CENTRAL MTNS AND EASTERN HIGHLANDS BY SAT AFTN AND
CONTINUE INTO SUN MORN. AS A MAJOR STORM SYSTEM MOVES OVER THE BC
COAST ON SUNDAY...THE NW UPPER FLOW OVER THE PAC NW WILL
STRENGTHEN. THIS WILL ENHANCE THE PAC MOISTURE TRANSPORT AND
INCREASE THE PRECIP CHANCES. THE CENTRAL MTNS AND EASTERN
HIGHLANDS WILL HAVE THE BEST CHANCES DUE TO THE INTERACTION OF THE
MOIST FLOW WITH THE TERRAIN. SNOW AMOUNTS IN THE MTNS SHOULD BE
LIGHT ON SAT...BUT SEVERAL INCHES ARE POSSIBLE ON SUN AND SUN
NIGHT. THE VALLEY LOCATIONS WILL SEE A MORE SPOTTY RAIN/SNOW MIX.
ON MON...THE UPPER CLOSED LOW DROPS INTO NORTHERN WA. A STRONG
COLD FRONT WILL DROP SOUTHWARD INTO CEN ID MON AFTN...FURTHER
INCREASING THE PRECIP CHANCES OVER THE CENTRAL MTNS. TEMPS WILL
REMAIN MILD AGAIN ON MON...BUT THIS WILL BE THE LAST DAY. HEDGES

.LONG TERM...MONDAY AFTERNOON THROUGH FRIDAY. MODELS ARE STARTING TO
COME INTO A BETTER AGREEMENT ABOUT THE UPPER CLOSED LOW MOVING INTO
WA ON MONDAY. LOOKS LIKE PRECIP WILL CONTINUE TO SPREAD INTO SE ID
THROUGH THE AFTERNOON ON MONDAY WITH A FRONTAL PASSAGE STILL
EXPECTED LATE MONDAY INTO EARLY TUESDAY. THE ECMWF IS MORE VIGOROUS
WITH THE MOISTURE BUT IT LOOKS LIKE EVERYWHERE IN THE CWA WILL SEE
SOME SNOW. EXACT AMOUNTS ARE STILL UNCLEAR AT THIS POINT. WINDS WILL
PICK UP AHEAD OF AND BEHIND THE FRONT BUT BELOW ADVISORY CRITERIA
FOR NOW. AS TUESDAY PROGRESSES... SNOW SHOWERS POSSIBLE ESPECIALLY
IN THE EASTERN HIGHLANDS WITH BREEZY DOWN VALLEY WINDS. MODELS STILL
INDICATING A GENERAL TROUGH OVER THE WESTERN THIRD OF THE U.S. FOR
WEDNESDAY THROUGH FRIDAY GIVING US A VERY COLD NORTHERLY FLOW BUT
HAVE TRENDED POPS LOWER. VALLEY LOWS THURSDAY AND FRIDAY MORNINGS
CURRENTLY FORECASTED TO BE IN THE SINGLE DIGITS WITH SUB ZERO TEMPS
IN THE MOUNTAINS. EP

&&

.AVIATION...VFR CONDITIONS EXPECTED THIS EVENING THROUGH SATURDAY.
HIGH CLOUDS MOVING IN OVERNIGHT TONIGHT. EP

&&

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

$$