Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 261503
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
904 AM MDT WED AUG 26 2015

.DISCUSSION...LATEST RADAR RETURNS WERE SHOWING A BROAD SWATH OF
LIGHT SHOWERS SPREADING NORTH ACROSS THE SE HIGHLANDS. HAVE BUMPED
POPS UP TODAY...PARTICULARLY ACROSS THE SE HIGHLANDS...TO ACCOUNT
FOR THIS. OTHER ITEM OF CONCERN IS THE POTENTIAL FOR SCT DRY
THUNDERSTORMS ALONG AN ARCO TO DILLON CORRIDOR THIS AFTERNOON ON
THE NRN FRINGE OF THE MONSOON MOISTURE FIELD. SPC LTG PROBABILITY
GUIDANCE SUGGESTS 2 ISOLATED AREAS OF 3. HAVE COORD WITH IMPACTED
DISPATCH CENTERS CONCERNING AREA OF CONCERN. SEE PREVIOUS DISCUSSION
BELOW. HUSTON

A WEAK LOW PRESSURE SYSTEM WILL ARRIVE FROM UTAH TODAY. THIS WILL
BRING SHOWERS AND A FEW THUNDERSTORMS TO THE AREA. BEST CHANCE ARE
ACROSS EXTREME SOUTHEAST IDAHO...CLOSER TO THE FORECAST TRACK OF THE
LOW. EXPECT CONSIDERABLE CLOUD COVER ACROSS MUCH OF THE AREA WHICH
SHOULD LIMIT THUNDER POTENTIAL. MOIST FLOW CONTINUES ACROSS CENTRAL
AND EAST IDAHO INTO THURSDAY WITH A WEAK SHORTWAVE TROUGH MOVING
THROUGH THE REGION. THIS WILL PRODUCE ISOLATED TO SCATTERED
THUNDERSTORMS MAINLY ACROSS THE CENTRAL MOUNTAINS.

THE THREAT FOR STORMS WILL REMAIN IN THE FORECAST INTO EARLY NEXT
WEEK AS A LOW PRESSURE SYSTEM OFF THE PACIFIC NORTHWEST COAST
CONTINUES TO PUMP SOME MOISTURE INTO THE REGION. THE LOW IS FORECAST
TO WEAKEN AND MOVE EASTWARD EARLY NEXT WEEK...POSSIBLY RESULTING IN
A BETTER CHANCE FOR STORMS DEPENDING UPON THE TRACK OF THE SYSTEM.
VALLE
&&

.AVIATION...A LOW PRESSURE SYSTEM WILL MOVE THROUGH SOUTHEAST
IDAHO TODAY. EXPECT ISOLATED TO SCATTERED THUNDERSTORMS TODAY WITH
THE BEST CHANCES ACROSS EXTREME SOUTHEAST IDAHO. A FEW SHOWERS AND
THUNDERSTORMS COULD BRIEFLY AFFECT TAF SITES TODAY. OTHERWISE
EXPECT VFR CEILINGS AND RELATIVELY LIGHT WINDS. VALLE
&&

.FIRE WEATHER...A LOW PRESSURE SYSTEM WILL MOVE THROUGH SOUTHEAST
IDAHO TODAY AND PRODUCE SHOWERS AND A FEW THUNDERSTORMS TODAY.
ANOTHER WEAK SYSTEM WILL MOVE THROUGH CENTRAL IDAHO ON THURSDAY
PRODUCING A GOOD CHANCE FOR SHOWERS AND THUNDERSTORMS ESPECIALLY
OVER CENTRAL IDAHO. VALLE
&&

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

$$


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