Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 270110
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
710 PM MDT SUN OCT 26 2014

.SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT. A QUICK UPDATE THIS
EVENING TO EXPIRE THE WIND ADVISORY FOR THE SNAKE RIVER PLAIN. NO
FURTHER UPDATES REQUIRED AT THIS TIME AS FORECAST REMAINS ON TRACK.
SEE PREVIOUS DISCUSSION BELOW. HUSTON

LOW PRESSURE SYSTEM IS BEGINNING TO EXIT THE REGION. THIS SYSTEM
BROUGHT NOTICEABLY COLDER AIR TO THE AREA ALONG WITH SCATTERED
SHOWERS. ATMOSPHERE REMAINS SOMEWHAT UNSTABLE ACROSS THE CENTRAL
MOUNTAINS INTO THE UPPER SNAKE HIGHLANDS. SO A FEW ISOLATED
THUNDERSTORMS WILL REMAIN POSSIBLE IN THAT AREA INTO THE EVENING
HOURS. GUSTY WINDS PERSIST ACROSS THE SNAKE PLAIN THIS AFTERNOON
WHERE A WIND ADVISORY IS IN EFFECT. THESE WINDS SHOULD DIMINISH
SOMEWHAT EARLY THIS EVENING. A FEW RESIDUAL SNOW SHOWERS WILL REMAIN
OVER THE UPPER SNAKE HIGHLANDS ON MONDAY. BUT OVERALL EXPECT DRY
WEATHER OVER MUCH OF THE AREA BUT THE COOL TEMPS WILL HANG ON FOR
THE NEXT COUPLE DAYS. MOISTURE AHEAD OF THE NEXT SYSTEM WILL BEGIN
TO POUR INTO THE CENTRAL MOUNTAINS IN THE FORM OF SOME LIGHT SNOW
SHOWERS. NO SIGNIFICANT ACCUMULATION EXPECTED. DRY CONDITIONS WILL
PERSIST FOR THE REST OF THE AREA. VALLE

.LONG TERM...WEDNESDAY THROUGH NEXT SUNDAY. WEAK PIECE OF ENERGY TO
MOVE OVER THE TOP OF THE RIDGE ON WEDNESDAY CREATING CHANCES OF
PRECIPITATION IN THE CENTRAL IDAHO MOUNTAINS.  MODELS IN AGREEMENT
THAT MAIN IMPACTS WOULD BE SOME HIGH ELEVATION LIGHT SNOW FLURRIES.
REST OF AREA TO REMAIN MILD AND DRY.  OVER THE WEEKEND A DEVELOPING
STRONG LOW PRESSURE SYSTEM OFF THE WEST COAST WILL SLOWLY PROGRESS
INLAND.  MODELS ARE CLOSE IN AGREEMENT BUT HAVE SLOWED A BIT SINCE
LAST NIGHTS RUN.  POTENTIAL FOR AFTERNOON THUNDERSTORMS ON SATURDAY
BUT TIMING CONFIDENCE IS A BIT LOW.  AS THE LOW COMES INLAND SUNDAY
TO BE WET AND COOL WITH LOWERING SNOW LEVELS. PRESTON
&&

.AVIATION...STRONG PACIFIC SYSTEM CONTINUES TO MOVE THROUGH THE
REGION TODAY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS POSSIBLE
THROUGH THIS AFTERNOON.  AIRPORTS IN THE SNAKE VALLEY MAY BRIEFLY
REDUCE TO MVFR WITH LOWER CLOUDS HEIGHTS BUT FOR THE MOST PART
REMAIN VFR.  STRONG GUSTY WINDS IS THE MAIN IMPACT FOR AVIATORS
THROUGH EARLY THIS EVENING.  SOME SPEED WIND SHEAR POSSIBLE FROM THE
SURFACE TO 10000.  TOMORROW EXPECT VFR CONDITIONS TO PREVAIL WITH
HIGH PRESSURE BUILDING IN. PRESTON
&&

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

$$






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