Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 040942
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
342 AM MDT TUE AUG 4 2015

.DISCUSSION...EXPECT RESIDUAL SHOWERS EARLY THIS MORNING OVER THE
UPPER SNAKE HIGHLANDS AND THE CENTRAL MOUNTAINS. LATE THIS
AFTERNOON INTO EARLY EVENING ANOTHER SYSTEM APPROACHES BRINGING
ISOLATED SHOWERS AND THUNDERSTORMS MAINLY FOR OUR WESTERN AREAS.
THIS NEXT SYSTEM MOVES THROUGH WEDNESDAY BRINGING ISOLATED TO
SCATTERED SHOWERS AND THUNDERSTORMS PARTICULARLY FOR OUR NORTHERN
AREAS. SOME OF THESE AFTERNOON THUNDERSTORMS WILL PRODUCE STRONG
WIND GUSTS NEAR 40 TO 50 MPH...LOCALIZED HEAVY RAIN AND SMALL TO
MEDIUM HAIL. EXPECT DRY CONDITIONS THURSDAY INTO EARLY FRIDAY.
MODELS CONTINUE TO SHOW ANOTHER SYSTEM APPROACHING FROM THE
SOUTHWEST LATE FRIDAY INTO SATURDAY BRINGING BACK GOOD
PRECIPITATION CHANCES. WEAK HIGH PRESSURE RIDGING BUILDS IN LATE
SUNDAY BRINGING A DRIER TREND SUNDAY AFTERNOON THROUGH TUESDAY.
WYATT

&&

.AVIATION...UPPER LEVEL LOW IN CALIFORNIA WILL CONTINUE TO PUMP
MOIST AND UNSTABLE AIR INTO MAINLY CENTRAL IDAHO...BUT MAY AFFECT
EASTERN IDAHO AS WELL. -TSRA HAS A BETTER CHANCE OF DEVELOPING TODAY
WITH BREAKS IN THE CLOUDINESS...BUT COVERAGE WILL STILL BE SPARSE.
THUS ONLY VCTS IN THE AIRDROME FORECASTS AT THIS HOUR. WIND NOT AS
STRONG TODAY AS YESTERDAY. NO SIG IMPACTS TO THE AIRPORTS
EXPECTED...THOUGH CANNOT RULE OUT SOME SURPRISE FOG OR STRATUS WITH
DEWPOINTS JUST 1 OR 2 DEGREES BELOW CURRENT TEMPERATURES. MESSICK

&&

.FIRE WEATHER...MORE LOW PRESSURE IS MOVING INTO THE PACIFIC
NORTHWEST AND NORTHERN CALIFORNIA. THE SOUTHWESTERLY FLOW WILL
CONTINUE THE FLOW OF MOIST UNSTABLE AIR, THOUGH NOT AS MOIST AS
MONDAY`S AIR MASS. THE SHOWERS AND THUNDERSTORMS WILL BE MORE SPARSE
AS A RESULT. SLIGHTLY CLEARER SKIES SHOULD ALLOW A WARM-UP AND SOME
DRYING OUT. THE CALIFORNIA PORTION OF THE LOW WILL ACTUALLY MOVE
THROUGH IDAHO ON WEDNESDAY MORNING AND AFTERNOON. THIS WILL BRING A
BETTER CHANCE OF SHOWERS AND THUNDERSTORMS, INCLUDING THE MORNING
HOURS. THURSDAY AND FRIDAY WILL HAVE A DRIER WESTERLY FLOW BEFORE
SHOWERS AND THUNDERSTORMS RETURN FOR THE WEEKEND. MESSICK

&&

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

$$


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