Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 240840
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
240 AM MDT SUN MAY 24 2015

.DISCUSSION...AREA STILL BEING INFLUENCED BY UPPER LOW LIFTING
THROUGH WYOMING THIS MORNING...BUT THAT INFLUENCE IS WANING AS THE
LOW WILL CONTINUE TO SHIFT FURTHER AWAY THROUGHOUT THE DAY. PATCHY
FOG SEEN ON AREA WEBCAMS AND OBSERVATIONS SHOULD LINGER UNTIL
AROUND MID-MORNING. DRIER AIR SHOULD BEGIN TO FILTER INTO THE
AREA FROM THE NORTH TODAY...BUT WE WILL STILL SEE THE THREAT OF
AFTERNOON SHOWERS AND ISOLATED THUNDERSTORMS. GFS IS SHOWING MORE
WIDESPREAD PRECIP FOR MONDAY DESPITE RIDGING INDUCED BETWEEN THE
DEPARTING LOW AND ANOTHER DROPPING INTO WESTERN WASHINGTON. NAM
DEVELOPS MORE ISOLATED CONVECTION...MAINLY OVER THE CENTRAL
MOUNTAINS...MONDAY AFTERNOON. MODELS SLOWLY PROGRESS THE UPPER LOW
THROUGH CENTRAL IDAHO TUESDAY THROUGH THURSDAY WITH CHANCE TO
LIKELY POPS DURING THE AFTERNOON AND LESSER CHANCES IN THE
NIGHTTIME. GFS AND ECMWF ARE BOTH SIGNALING RIDGING TO RETURN TO
THE REGION FRIDAY NIGHT AND SHOULD LEAD TO DRIER AND WARMER
WEATHER HEADING INTO NEXT WEEKEND. HINSBERGER
&&

.AVIATION...AMPLE MOISTURE FROM RECENT RAINS PRODUCING POCKETS OF
FOG AND STRATUS ACROSS EAST IDAHO THIS MORNING. IFR/LIFR CONDITIONS
IN PLACE AT EACH OF THE SNAKE PLAIN TERMINALS. EXPECT CLEARING TO
MVFR/VFR BY MID MORNING THEN ANOTHER ROUND OF CONVECTION BY
AFTERNOON ACROSS THE REGION...DISSIPATING OVERNIGHT. GUIDANCE AND
CROSS SECTIONS INDICATE CLEARING WILL AGAIN BE POSSIBLE OVERNIGHT
AND WOULD EXPECT FOG/STRATUS TO BE A POTENTIAL OCCURRENCE AGAIN WITH
AMOUNT OF MOISTURE IN PLACE ACROSS THE REGION. WILL LIKELY LEAN
TOWARD THAT DIRECTION WITH 12Z TERMINAL ISSUANCE. DMH
&&

.FIRE WEATHER...THE EAST IDAHO FIRE DISTRICT WILL REMAIN MOIST AND
UNSETTLED THIS WEEK. SCATTERED SHOWERS AND THUNDERSTORMS ARE
FORECAST EACH DAY THIS WEEK...WITH NUMEROUS SHOWERS FORECAST FOR
TUESDAY. AT THIS TIME...DRIER WEATHER APPEARS TO BE ON THE HORIZON
FOR THE WEEKEND WITH A RIDGE TRYING TO BUILD INTO THE GREAT BASIN.
DMH
&&

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

$$



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