Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 160845
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
245 AM MDT TUE SEP 16 2014

.SHORT TERM...TODAY THROUGH THURSDAY.
UPPER LEVEL RIDGE OVERHEAD TODAY WITH MOISTURE NOW PUSHING INTO
SOUTHEAST IDAHO FROM WEST WITH WEAK WAVE PUSHING EAST THROUGH
RIDGE TODAY. EXPECT SOME ISOLATED SHOWER AND THUNDERSTORM ACTIVITY
TODAY MAINLY IN MOUNTAINS. VERY WARM CONDITIONS WILL CONTINUE WITH
HIGH TEMPERATURES APPROACHING 15 DEGREES ABOVE NORMAL ONCE AGAIN
TODAY. THE RIDGE MOVES EAST WITH SOUTHWESTERLY FLOW ALOFT MOVING
IN WEDNESDAY WITH MORE MOISTURE PUSHING INTO THE REGION AND
CONTINUED ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS. UPPER
TROF AND WEAK COLD FRONT MOVE THROUGH THURSDAY AND EXPECT MOST
WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY THEN WITH LOCALLY
HEAVY DOWNPOURS. WEDNESDAY WILL REMAIN VERY WARM CONTINUING THE 15
DEGREES ABOVE NORMAL HIGH TEMPERATURES WITH A COOL DOWN THURSDAY
AS THE SYSTEM MOVES EAST WITH HIGH TEMPERATURES ABOUT 5 TO 10
COOLER BUT STILL ABOVE NORMAL.
GK

.LONG TERM...FRIDAY THROUGH NEXT TUESDAY.
UPPER RIDGE BEGINS TO REBUILD TO WEST ON FRIDAY AND EXPECT MAINLY
DRY CONDITIONS WITH CONTINUED ABOVE NORMAL HIGH TEMPERATURES
FRIDAY INTO THE EARLY PART OF NEXT WEEK.
GK

&&

.AVIATION...UPPER RIDGE WILL REMAIN IN PLACE OVER SE IDAHO INTO WED
MORNING.  EXPECT A FEW ISOLATED SHOWERS/THUNDERSTORMS OVER THE
CENTRAL MOUNTAINS TODAY AS A WEAK SHORT WAVE RIDES UP AND OVER THE
RIDGE.  CONVECTION WILL REMAIN MAINLY OVER THE CENTRAL MOUNTAINS AND
VFR CONDITIONS WILL DOMINATE THE REGION. DSH

&&

.FIRE WEATHER...UPPER RIDGE WILL REMAIN IN PLACE OVER SE IDAHO INTO
MIDWEEK...HOWEVER A WEEK SHORTWAVE WILL MOVE THROUGH THE RIDGE TODAY
AND PRODUCE ISOLATED SHOWERS...MAINLY OVER THE CENTRAL MOUNTAINS.
THE UPPER RIDGE BEGINS TO SHIFT EAST ON WEDNESDAY AS A DEEP UPPER
LOW APPROACHES THE WEST COAST.  THIS APPROACHING LOW WILL SHIFT THE
UPPER LEVEL FLOW TO THE SOUTHWEST AND BRING INCREASING MOISTURE AND
INSTABILITY OVER SE IDAHO FOR WEDNESDAY EVENING AND THURSDAY.
PRECIPITABLE WATER VALUES APPROACH AN INCH OR MORE FOR THURSDAY SO
EXPECT LOCALLY HEAVY DOWNPOURS. THE UPPER LEVEL SYSTEM WILL SWING
THROUGH SE IDAHO LATE THURSDAY NIGHT AND MUCH COOLER TEMPERATURES
ARE EXPECTED FOR FRIDAY INTO THE WEEKEND. DSH

&&

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

$$








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