Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 271957
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
157 PM MDT MON JUL 27 2015

.SHORT TERM...TONIGHT THROUGH WEDNESDAY MORNING. AN UNSEASONABLY
DEEP PACIFIC TROUGH WILL CONTINUE TO MIGRATE EAST THROUGH MONTANA
AND INTO NORTH DAKOTA TONIGHT AND TUESDAY AS A DRIER NW FLOW
OVERSPREADS THE REGION IN THE WAKE OF THE BROAD SWATH OF
PRECIPITATION CURRENTLY ADVANCING EAST THROUGH THE AREA. STRONG POST-
FRONTAL WINDS WILL LIKELY CONTINUE ACROSS THE AREA UNTIL 9 PM MDT
THIS EVENING BEFORE DECOUPLING. THUS THE WIND ADVISORY WILL CONTINUE
WITHIN THE SNAKE RIVER PLAIN AND ERN MAGIC VALLEY. UPPER LEVEL FLOW
AND THE RECENT INJECTION OF MOISTURE WILL LIKELY HOLD TEMPERATURES
UP ABOVE FREEZING TONIGHT...BUT AS CONDITIONS DRY TUESDAY NIGHT
TEMPERATURES WILL LIKELY DROP A FEW MORE DEGREES WITH LOCAL AREAS OF
FROST POSSIBLE...PARTICULARLY IN THE UPPER SNAKE PLAIN. LOOK FOR A
FEW RECORD LOW TEMPERATURES TO FALL OVER THE NEXT TWO DAYS. HUSTON

.LONG TERM...WEDNESDAY THROUGH NEXT MONDAY. A RIDGE OF HIGH PRESSURE
WILL BUILD OVER THE 4-CORNERS REGION AND SOUTHERN GREAT BASIN
KEEPING SRN IDAHO DRY WITH NOTABLY WARMER TEMPERATURES THROUGH THE
WEEK. SUB-TROPICAL MOISTURE MAY ROTATE AROUND THE HIGH INTO IDAHO AS
EARLY SATURDAY PROMOTING ISOLATED CONVECTION UNDER THE RIDGE THROUGH
MONDAY. HUSTON
&&

.AVIATION...-TSRA SHOULD END EARLY TODAY AS A STRONG FRONT CROSSES
THROUGH DURING THE EARLY AFTERNOON. CIGS SHOULD DISAPPEAR WITH
UNLIMITED CIGS/VSBYS DEVELOPING TONIGHT. AN EXTENDED PERIOD OF CLEAR
SKIES WILL DEVELOP BEHIND THIS FRONT. WIND SHOULD SUBSIDE DURING THE
LATE EVENING...WITH NO REPEAT FOR TOMORROW. MESSICK
&&

.FIRE WEATHER...AFTER A STRONG COLD FRONT PASSES THROUGH THIS
EVENING...AN EXTENDED PERIOD OF WARMING AND DRYING WILL DEVELOP
UNDER HIGH PRESSURE THAT MOVES IN...AND SHOULD LAST AT LEAST INTO
SAT. NEAR AND ABOVE NORMAL TEMPERATURES SHOULD RETURN BY WED WITH
THE CLEARER SKIES. MESSICK
&&

.PIH WATCHES/WARNINGS/ADVISORIES...

WIND ADVISORY CONTINUES UNTIL 9 PM MDT THIS EVENING FOR IDZ017-020-
021.
&&

$$



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