Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 020914
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
314 AM MDT TUE SEP 2 2014

.SHORT TERM...WARMER BUT ALSO WINDIER TODAY AHEAD OF NEXT INCOMING
UPPER TROUGH CURRENTLY NEAR THE QUEEN CHARLOTTES.  TROUGH WILL FORM
A LOW THAT WILL TRACK EWD ACROSS NRN IDAHO EARLY WEDNESDAY MORNING.
FOR OUR AREA UPPER FLOW WILL BACK FROM NWLY TO WLY AND INCREASE AS
THE TROUGH MOVES CLOSER.  AIR MASS WILL REMAIN TOO DRY FOR PCPN EVEN
WITH THE TROUGH AXIS PASSING THROUGH WEDNESDAY MORNING.  SURFACE
COLD FRONT WILL PASS THROUGH OUR NWRN ZONES IN OREGON THIS EVENING
AND OUR REMAINING ZONES OVERNIGHT.  FRONT WILL BRING GUSTY WINDS
THAT WILL SHIFT TO NORTHWEST BEHIND FROPA.  AIR MASS BEHIND THE
FRONT IS ALSO SIGNIFICANTLY COOLER THAN AHEAD OF IT.  MAX TEMPS
TODAY WILL BE IN THE MID 70S TO LOWER 80S IN THE MOUNTAINS AND 80S
IN THE VALLEYS.  MINS TONIGHT WILL NOT BE AS COLD AS THE PAST FEW
NIGHTS DUE TO INCREASED WINDS AND MIXING OF WARMER AIR ABOVE THE
SURFACE.  WEDNESDAY/S MAX TEMPS WILL BE 10 TO 15 DEGS COOLER THAN
TODAY ALONG WITH BREEZY WEST/NORTHWEST WINDS.  WEDNESDAY WILL ALSO
BECOME DRIER THAN TODAY.

.LONG TERM...WEDNESDAY NIGHT THROUGH MONDAY...MODELS REMAIN IN GOOD
AGREEMENT WITH THE AXIS OF A WEAK LONG WAVE TROUGH OVER THE FORECAST
AREA WEDNESDAY NIGHT THROUGH FRIDAY.  LITTLE OR NO PRECIPITATION IS
EXPECTED WITH THIS TROUGH WITH TEMPERATURES AROUND 10 DEGREES BELOW
NORMAL ON THURSDAY WARMING TO NEAR NORMAL ON FRIDAY.  MODELS STILL
HOLD ONTO A WEAK UPPER LEVEL LOW OFF THE NORTHERN CALIFORNIA COAST
INTO THE WEEKEND WHILE BUILDING AN UPPER LEVEL RIDGE OVER THE
PACIFIC NORTHWEST.  THIS WILL KEEP THE REGION DRY WITH HIGH
TEMPERATURES WARMING TO A FEW DEGREES ABOVE NORMAL BY SUNDAY.
SUNDAY NIGHT INTO MONDAY ANOTHER UPPER LEVEL TROUGH WILL BEGIN TO
MOVE OVER THE PACIFIC NORTHWEST BUT AGAIN LITTLE OR NO PRECIPITATION
IS EXPECTED WITH THAT SYSTEM.  TEMPERATURES WILL COOL TO NEAR NORMAL
ON MONDAY.

&&

.AVIATION...VFR.  CLEAR SKIES THIS MORNING WITH INCREASING MID AND
HIGH LEVEL CLOUDS THIS AFTERNOON.  SURFACE WINDS WILL BE LIGHT
BECOMING WESTERLY 5 TO 15 KNOTS AFTER 18Z.  WINDS ALOFT WILL BE
WESTERLY AROUND 20 KNOTS UP THROUGH 10K FEET MSL.

&&

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

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM...JA
AVIATION....JA



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