884
FXUS65 KBOI 120008
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
608 PM MDT SUN OCT 11 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- COOLER THAN NORMAL TEMPERATURES, 10 TO 15 DEGREES BELOW NORMAL
THROUGH MONDAY.
- UNSETTLED CONDITIONS THROUGH EARLY TUESDAY, MAINLY ON THE
IDAHO SIDE, WITH SHOWERS MAINLY OVER MAGIC VALLEY AND BOISE
MOUNTAINS.
- SNOW LEVELS NEAR 6000-7000 FEET IN THE WEST CENTRAL ID
MOUNTAINS THROUGH MONDAY WITH LIGHT ACCUMULATIONS.
- WARM AND DRY CONDITIONS WEDNESDAY THROUGH NEXT WEEKEND.
SHORT TERM /THROUGH TUESDAY NIGHT/
ISSUED 246 PM MDT SUN OCT 11 2026
AN UPPER LEVEL TROUGH OVER EASTERN OR WILL KEEP CONDITIONS COOL
AND UNSETTLED THROUGH MONDAY. SHOWERS WILL MAINLY BE CONFINED TO
SOUTHWEST IDAHO WITH THE HIGHEST CHANCES OF PRECIPITATION
OVER THE HIGHER TERRAIN AND MAGIC VALLEY. EASTERN OR WILL
GENERALLY REMAIN DRY, WITH A SLIGHT CHANCE OF SHOWERS IN FAR SE
OREGON. SIMILAR CONDITIONS ON MONDAY AS THE TROUGH REMAINS
NEARLY STATIONARY. MONDAY WILL BE THE COOLEST DAY OF THE PERIOD.
BY TUESDAY THE TROUGH WILL MOVE INTO SOUTHERN NV AND UT WITH A
CHANCE OF SHOWERS MAINLY ALONG THE NV BORDER AND MAGIC VALLEY
THROUGH TUESDAY. TEMPERATURES WILL WARM AROUND 10 DEGREES AS THE
UPPER LEVEL TROUGH MOVES SE.
LONG TERM /WEDNESDAY THROUGH SUNDAY/
ISSUED 246 PM MDT SUN OCT 11 2026
A WARMING AND DRYING TREND WILL PERSIST WEDNESDAY THROUGH THE
END OF THE PERIOD. AS THE LOW THAT BROUGHT ALL THE WEATHER IN
THE SHORT-TERM DEPARTS TO OUR EAST, A PACIFIC RIDGE WILL BUILD
IN, SHIFTING EAST TO BE OVER THE GREAT BASIN BY THE WEEKEND. AS
A RESULT, TEMPERATURES WILL WARM TO BE 5-10 DEGREES NORMAL COME
THE WEEKEND.
AVIATION /00Z MONDAY THROUGH TUESDAY/
ISSUED 551 PM MDT SUN OCT 11 2026
GENERALLY VFR. AREA OF LIGHT RAIN/MTN SNOW, MAINLY IN SW/CENTRAL
IDAHO THIS EVENING THEN EXPANDING INTO NE OREGON MON MORNING.
LOW-VFR/MVFR IN HEAVIER RAIN, IFR/LIFR IN MTN SNOW. MOUNTAINS
OBSCURED IN LOW STRATUS/PRECIP. SNOW LEVELS: SW IDAHO LOWERING
TO 5-7KFT MSL OVERNIGHT; E OREGON LOWERING TO 3.5-5KFT MSL.
SURFACE WINDS: W-N 5-15 KT WITH GUSTS TO 15-30 KT THIS EVENING.
GUSTS DECREASING OVERNIGHT, BECOMING SW-NW 5-10 KT. WINDS ALOFT
AT 10KFT MSL: VARIABLE 5-15 KT, THEN NW 5-15 KT MON AFTERNOON.
KBOI...VFR. LIGHT RAIN ENDING BY MON/04Z, WITH CEILINGS BETWEEN
4000-7000 FT AGL. SURFACE WINDS: NW 6-12 KT.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....SH
SHORT TERM...KA
LONG TERM....NF
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