Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 301510
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
910 AM MDT SUN AUG 30 2015

.DISCUSSION...PER SATELLITE IMAGERY WE UPDATED TO REMOVE SHOWERS AND
REDUCE SKY COVER FOR THIS MORNING.  LAST NIGHT/S CLOUD AND PCPN IN
IDAHO HAVE MOVED OFF TO THE NORTHEAST...AND NEXT SHORT WAVE TROUGH
HAS YET TO REACH NRN OREGON ZONES FROM THE WSW.  SKIES CLEARED AND
WINDS DROPPED OFF DURING THE NIGHT ALLOWING TEMPS TO DROP MORE THAN
EXPECTED.  EARLY MORNING TEMPS WERE NEAR 40 IN HARNEY COUNTY/OR...
MID 40S IN BAKER COUNTY...AND MID 50S AT ROME IN SRN MALHEUR COUNTY.
TEMPS DROPPED TO THE LOWER TO MID 50S IN THE TREASURE VALLEY AND
UPPER 40S AT MCCALL.  THE NEXT SHORT WAVE TROUGH WILL BRING MORE
SHOWERS TO NRN ZONES THIS AFTERNOON...ALREADY IN THE FORECAST.
NO OTHER UPDATES FOR NOW.

&&

.AVIATION...VFR. WILDFIRE SMOKE WITH ISOLATED SHOWERS NORTH OF KBKE-
KMYL. SURFACE WINDS...GENERALLY W-NW 5-15KT WITH GUSTS TO 25KT THIS
AFTERNOON. WINDS ALOFT AT 10K FT MSL...SW 20-30KT.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH MONDAY...SHOWERS AND ISOLATED
THUNDERSTORMS FROM BANNER SUMMIT TO CENTRAL OWYHEE COUNTY AT 3 AM
WILL PUSH EAST AND EXIT THE MAGIC VALLEY/CAMAS PRAIRIE BETWEEN 5
AND 7 AM. INSTABILITY IS EXPECTED TO LINGER ACROSS NE OREGON
THROUGH NOON...SW IDAHO THROUGH MID-AFTERNOON...AND THE EASTERN
PAYETTE FOREST UNTIL EARLY EVENING. SO THE NEXT UPPER TROUGH THAT
BRINGS PRECIP FROM THE WEST COAST THIS MORNING...TO ACROSS THE
NORTHERN TIER ZONES THROUGH THIS EVENING...WILL ALSO HAVE A SLIGHT
CHANCE OF THUNDERSTORMS. HIGH TEMPERATURES WILL BE DOWN 8-18
DEGREES TODAY AS THE UPPER TROUGH MOVES THROUGH. HIGHS MONDAY THEN
REBOUND BY 2-5 DEGREES OVER IDAHO AND 6-12 OVER OREGON AS HEIGHTS/
THICKNESSES RISE ON WSW FLOW ALOFT. LOWS TONIGHT WILL BE ABOUT AS
COLD AS LAST SATURDAY MORNING /22 AUG/ WHEN BURNS OREGON GOT DOWN
TO FREEZING WHILE MOST OF THE AG VALLEY LOWS WERE IN THE 50S. DRY
WEATHER WILL RETURN TO THROUGHOUT THE AREA LATE EVENING THROUGH
MONDAY. UPPER LEVEL FLOW WILL AGAIN ALLOW FOR AREAS OF SMOKE ACROSS
NE OREGON AND CENTRAL IDAHO ESPECIALLY NEAR ONGOING FIRES.

LONG TERM...MONDAY NIGHT THROUGH SUNDAY...THERE WILL BE A COOLING
TREND THROUGH FRIDAY...THEN WARMING OVER THE WEEKEND. MODELS AGREE
ON AN UPPER LEVEL TROUGH DEEPENING SOUTHWARD OVER THE COAST TUESDAY
AND WEDNESDAY THEN MOVING INLAND OVER THE NORTHERN INTERMOUNTAIN
AREA THURSDAY AND FRIDAY. THE COOLEST DAYS WILL BE THURSDAY AND
FRIDAY WITH HIGHS AROUND 10 DEGREES BELOW NORMAL. A WARMING TREND IS
EXPECTED OVER THE WEEKEND AS THE TROUGH WEAKENS AND DRIFTS EAST OF
OUR AREA...BUT TEMPERATURES WILL STILL BE AROUND 5 DEGREES BELOW
NORMAL. THERE WILL BE ONLY SLIGHT CHANCES OF MEASURABLE
PRECIPITATION FOR MOST OF OUR AREA STARTING WEDNESDAY AFTERNOON. THE
BEST CHANCES WILL BE OVER BAKER COUNTY OREGON AND THE CENTRAL IDAHO
MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.

&&

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

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...LC
AVIATION.....KA
PREV SHORT TERM...VM
PREV LONG TERM....JT


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