Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 141551
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
951 AM MDT MON JUL 14 2014

.DISCUSSION...SHOWERS AND STORMS HAVE ENDED AS OF 945 AM MDT. THE
SHORT WAVE TROUGH THAT WILL BE PASSING BY JUST TO OUR NORTH TODAY
WILL HELP INITIATE NEW THUNDERSTORMS THIS AFTERNOON. MOST OF THIS
ACTIVITY WILL BE EAST AND NORTHEAST OF OUR AREA. HOWEVER...WE
STILL EXPECT ISOLATED ACTIVITY IN THE FAR NE CORNER OF VALLEY
COUNTY AND ALSO IN AND NEAR TWIN FALLS COUNTY. TEMPS WILL BE VERY
HOT AGAIN TODAY...WITH READINGS OVER 100 IN THE LOWER ELEVATIONS.
NO CHANGES AT THIS TIME.

&&

.AVIATION...VFR. MOSTLY CLEAR SKIES EXCEPT FOR ISOLATED AFTERNOON
AND EVENING THUNDERSTORMS OVER THE HIGHER TERRAIN EAST OF KMYL AND
SOUTH OF KTWF. SURFACE WINDS...WEST TO NORTHWEST 10-20 KTS G25 KTS
EXCEPT NORTHEAST TO EAST 5-15 KTS IN THE SNAKE RIVER VALLEY UNTIL
18Z. WINDS ALOFT...WEST UP TO 20 KTS AT 10K FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH TUESDAY...SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS CONTINUE EARLY THIS MORNING ACROSS
NORTHERN PORTIONS OF THE FORECAST AREA...INCLUDING BAKER...
WASHINGTON...ADAMS...AND VALLEY COUNTIES. THE CONVECTION WAS
SUPPORTED BY AN UPPER LEVEL LOW PRESSURE TROUGH SITUATED OVER THE
PACIFIC NORTHWEST. THE TROUGH WILL MOVE EASTWARD TODAY AND WILL
START TO BRING DRIER AIR INTO MOST OF THE AREA BY THIS AFTERNOON.
THE EXCEPTION WILL BE IN THE BOISE/WEST CENTRAL MOUNTAINS AND
SOUTH/EAST OF TWIN FALLS. A DRIER NORTHWEST FLOW WILL FOLLOW
BEHIND THE DEPARTING TROUGH WITH DRY WEATHER RETURNING TO THE
REGION LATE TONIGHT AND TUESDAY. NORTHWEST WINDS WILL DEVELOP THIS
AFTERNOON AS THE SURFACE THERMAL TROUGH SHIFTS EAST...WITH BREEZY
CONDITIONS EXPECTED LATE TUESDAY MORNING THROUGH THE AFTERNOON.
TEMPERATURES WILL BE SLIGHTLY COOLER /BUT STILL HOT/ WEST OF
BOISE...AND SLIGHTLY WARMER EAST OF BOISE IN ASSOCIATION WITH THE
THERMAL TROUGH AS IT SHIFTS INTO SOUTH- CENTRAL IDAHO.
TEMPERATURES WILL BE SEVERAL DEGREES COOLER /BUT STILL ABOVE
NORMAL/ ON TUESDAY.

LONG TERM...TUESDAY NIGHT THROUGH MONDAY...NORTHWESTERLY FLOW
WILL REMAIN OVER THE REGION THROUGH THE EXTENDED PERIOD. THIS WILL
BRING DRIER CONDITIONS WITH TEMPERATURES NEAR NORMAL. A WEAK
TROUGH PASSAGE ON FRIDAY WILL BRING TEMPERATURES BELOW NORMAL FOR
THE FIRST TIME THIS JULY. MODELS IN GOOD AGREEMENT WITH UPPER
LEVEL TROUGH REMAINING OVER THE PACIFIC NORTHWEST THROUGH EARLY
NEXT WEEK...SUPPRESSING THE FOUR CORNERS RIDGE.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...SP
AVIATION.....JT
PREV SHORT TERM...BW
PREV LONG TERM....JS



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