271
FXUS65 KBOI 112046
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
246 PM MDT SUN OCT 11 2026
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/
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/
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 /18Z SUNDAY THROUGH MONDAY/
ISSUED 1228 PM MDT SUN OCT 11 2026
GENERALLY VFR. BROAD AREA OF PRECIP EXPANDING FROM SE-NW THROUGH
THE DAY IN SW-IDAHO, MAINLY EAST OF A KMYL/KBOI LINE. LOW-VFR
TO MVFR POSSIBLE IN RAIN, MVFR-LIFR IN MTN SNOW. MTNS OBSCURED
IN PRECIP. SNOW LEVELS IN SW-IDAHO: 6-8.5 KFT MSL SUN/PM, THEN
5-7 KFT MSL MON/AM. SURFACE WINDS: W-NW 5-15 KT WITH GUSTS TO
20-30 KT THIS AFTERNOON/EVENING. GUSTS DECREASING OVERNIGHT.
WINDS ALOFT AT 10KFT MSL: VARIABLE 5-15 KT.
KBOI...VFR. A 30% CHANCE OF LIGHT RAIN BETWEEN SUN/23Z-MON/05Z.
SURFACE WINDS: NW THROUGH THE PERIOD, 10-15 KT WITH GUSTS TO
AROUND 20 KT THIS AFTERNOON, DECREASING TO 5-10 KT OVERNIGHT.
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
SHORT TERM...KA
LONG TERM....NF
AVIATION.....NF
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