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000
FXUS65 KPIH 110917
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
317 AM MDT TUE JUN 11 2013

.SHORT TERM...TODAY THROUGH THU NIGHT. BAND OF UNSTABLE MOIST
AIRMASS CONTINUES TO STREAM INTO CENTRAL AND SOUTHERN IDAHO. A
WEAK TROUGH WITH PERFECT AFTERNOON TIMING WILL BRING BACK A
THUNDERSTORM RISK FOR THE NEXT COUPLE OF DAYS. ALSO..THE UPPER
LEVEL WIND WILL INCREASE...THUS EXPECT A DEFINITE LAKE WIND
ADVISORY FOR ZONE 20. FOR THU AND THU NIGHT...THE MAIN LOW THAT
HAS BEEN SLOWLY SPINNING IN PLACE ON THE PACIFIC COAST WILL KICK
OUT TO THE EAST AND WILL ENTER THE IDAHO PANHANDLE BY THU NIGHT.
THE COLD CORE WILL CONTINUE THE THUNDERSTORM ACTIVITY AS THE UPPER
LEVEL COLD AIR WILL KEEP THE AIR UNSTABLE. THE MAIN FOCUS FOR
CONVECTION WILL CONTINUE TO BE THE CENTRAL IDAHO MOUNTAINS AND THE
IDAHO- MONTANA BORDER. THE CLOUDS AND LIGHT RAINFALL WILL COOL
AFTERNOON HIGHS BELOW THE RECORD CONDITIONS...BUT STILL ABOVE
NORMAL AT LEAST FOR TODAY. TEMPERATURES WILL CONTINUE TO COOL AND
WITH THE UPPER LEVEL LOW APPROACHING THU WILL COOL TEMPERATURES TO
NEAR NORMAL. MESSICK

.LONG TERM...FRI THROUGH NEXT MON NIGHT. THE UPPER LEVEL LOW
MOVING IN FROM OREGON-WASHINGTON WILL BRING SHOWERS AND
THUNDERSTORMS MAINLY TO THE NORTHERN HALF OF THE FORECAST AREA.
TEMPERATURES WILL ACTUALLY COOL TO BELOW NORMAL FOR FRI. A STRONG
HIGH DEVELOPS BEHIND THE LOW AND CAUSES AN APPROXIMATE TEN DEG
WARMING FROM FRI TO SAT. CLEAR SKIES EXPECTED TO CONTINUE UNDER
HIGH PRESSURE FOR THE REST OF THE EXTENDED PERIOD.  MESSICK


&&

.AVIATION...AN UPPER LOW MOVING INTO THE PAC NW TODAY WILL
STRENGTHEN SW FLOW OVER ID. THIS WILL KEEP A SUPPLY OF MID LEVEL
MOISTURE FLOWING INTO THE AREA...RESULTING IN MAINLY AFTN/EVE TSTMS
OVER THE MTNS. ISOLD TSTMS ARE POSSIBLE IN THE VALLEYS. DRY AIR IN
THE LOWER LEVELS WILL KEEP CLD BASES HIGH...SO VFR CONDITIONS WILL
PREVAIL. GUSTY WINDS ARE ALSO POSSIBLE WITH TSTMS. HEDGES
&&

.FIRE WEATHER...AN UPPER LOW MOVING INTO THE PAC NW TODAY WILL
RESULT IN SCATTERED SHOWERS AND THUNDERSTORMS OVER THE MOUNTAINS AND
ISOLATED THUNDERSTORMS IN THE VALLEYS. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS. TEMPERATURES WILL BE A LITTTLE COOLER TODAY AND
AFTERNOON HUMIDITY A LITTLE HIGHER. BREEZY CONDITIONS CAN BE
EXPECTED IN THE SNAKE RIVER PLAIN TODAY. THE UPPER LOW WILL
GRADUALLY MOVE EASTWARD...MAINTAINING THE THUNDERSTORM THREAT
THROUGH THE WEEK. TEMPERATURES WILL CONTINUE TO COOL INTO THE
WEEKEND. HEDGES

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
LAKE WIND ADVISORY FROM 11 AM THIS MORNING TO 10 PM MDT THIS
EVENING IDZ021.

&&

$$