570
FXUS65 KBOI 131618
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
918 AM MST THU NOV 13 2025
DISCUSSION
WARM AGAIN TODAY WITH HIGHS NEAR RECORDS FOR THE
DATE. PACIFIC COLD FRONT, ALREADY INLAND IN OR AND NORTHERN CA,
WILL PASS THROUGH OUR CWA OVERNIGHT AND FRIDAY MORNING. THE
FRONT WILL WEAKEN AS THE SUPPORTING UPPER LEVEL TROUGH SPLITS,
WITH THE NORTH PORTION OF THE TROUGH MOVING RAPIDLY EASTWARD
NEAR THE CANADIAN BORDER AND THE SOUTH PORTION BECOMING A
CLOSED LOW HEADED TOWARD SOUTHERN CALIF FRIDAY, LEAVING ONLY
WEAK SUPPORT FOR THE FRONT IN OUR CWA. HOWEVER, MODELS STILL
HAVE ENOUGH MOISTURE FOR LIGHT TO MODERATE RAIN IN OUR NORTHERN
MOUNTAINS AND LIGHT RAIN ELSEWHERE TONIGHT AND FRIDAY MORNING.
BEHIND THE FRONT ONLY SLIGHT COOLING IS EXPECTED FRIDAY, ALONG
WITH CLEARING WEST TO EAST. CURRENT FORECAST COVERS THIS. NO
UPDATES.
AVIATION
MOSTLY VFR. SCATTERED RAIN SHOWERS NORTH/WEST OF A
KREO-KBOI-KSNT LINE. MOUNTAIN OBSCURATION IN MVFR/IFR CONDITIONS
IN PRECIP/LOW CLOUDS THIS EVENING. SURFACE WINDS: S-E 5-15 KT
WITH GUSTS TO 20-25 KT THIS AFTERNOON. WINDS ALOFT AT 10KFT MSL:
20-45 KT, INCREASING FROM CENTRAL-ID TOWARD CENTRAL OR.
KBOI...VFR. LIGHT RAIN/VIRGA SHOWERS THIS AFTERNOON. SURFACE
WINDS: SE 5-15 KT WITH GUSTS TO 20-25 KT THIS AFTERNOON.
WEEKEND OUTLOOK...PATCHY FOG SATURDAY MORNING, OTHERWISE VFR.
INCREASING CLOUDS LATE SATURDAY WITH SHOWERS DEVELOPING SUNDAY
MORNING, EXPECT MOUNTAIN OBSCURATION SUNDAY. SNOW LEVELS AROUND
7-8K FT MSL. SURFACE WINDS: VARIABLE UP TO 10 KT SATURDAY,
SW-SE 5-15 KT SUNDAY.
PATCHY FOG SATURDAY MORNING, OTHERWISE VFR.
INCREASING CLOUDS LATE SATURDAY WITH SHOWERS DEVELOPING SUNDAY
MORNING, EXPECT MOUNTAIN OBSCURATION SUNDAY. SNOW LEVELS AROUND 7-8K
FT MSL. SURFACE WINDS: VARIABLE UP TO 10 KT SATURDAY, SW-SE 5-15 KT
SUNDAY.
PREV DISCUSSION
SHORT TERM...TODAY THROUGH SATURDAY NIGHT...MILD SOUTHWEST FLOW
CONTINUES TODAY, WITH TEMPERATURES AROUND 15-20 DEGREES ABOVE
NORMAL AS A TROUGH REMAINS OFF THE NORTHERN CA COAST. A FRONTAL
SYSTEM WILL APPROACH THE AREA, INCREASING WINDS AND MIXING THIS
AFTERNOON, WHICH WILL ALSO AID IN WARMING. TEMPERATURES WILL BE
NEAR RECORD HIGHS TODAY AT SOME LOCATIONS INCLUDING BOISE,
BURNS AND TWIN FALLS. SOME SCATTERED SHOWERS WILL REACH EASTERN
OR LATER THIS AFTERNOON AND EVENING AND THE WEST CENTRAL ID
MOUNTAINS. SCATTERED SHOWERS CONTINUE, GENERALLY OVER THE
MOUNTAINS INTO FRIDAY, WITH SPRINKLES POSSIBLE IN THE SNAKE
PLAIN. PARTIAL CLEARING EXPECTED ON FRIDAY AFTERNOON, WITH MILD
TEMPERATURES CONTINUING AS THE SYSTEM CUTS OFF INTO A LOW OVER
SOUTHERN CA. SATURDAY WILL BE DRY WITH PARTLY SUNNY SKIES AND
SLIGHTLY COOLER TEMPERATURES, BUT STILL 10-15 DEGREES ABOVE
NORMAL.
LONG TERM...SUNDAY THROUGH THURSDAY...THE UPPER LEVEL TROUGH
OVER SOUTHERN CA WILL MOVE NORTHWARD INTO THE GREAT BASIN ON
SUNDAY, WITH SHOWERS LIKELY BY SUNDAY AFTERNOON. SNOW LEVELS
REMAIN AROUND 7000-8000' THROUGH MONDAY. A TROUGH FROM THE GULF
OF ALASKA WILL BRING A COLD FRONT SOMETIME ON MONDAY OR TUESDAY,
WITH COOLER AIR, AND LOWER SNOW LEVELS. SNOW LEVELS BY TUESDAY
FALL TO 3500-4500' WITH UNSETTLED CONDITIONS AND SCATTERED
SHOWERS. CONDITIONS DRY OUT ON WEDNESDAY WITH COOL AIR LINGERING
OVER THE AREA. TEMPERATURES FALL TO NORMAL ON MONDAY AND REMAIN
THROUGH THURSDAY WITH UNSETTLED CONDITIONS AND LOW FORECAST
CONFIDENCE ON THE TIMING OF SYSTEMS.
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
DISCUSSION...LC
AVIATION.....NF
SHORT TERM...KA
LONG TERM....KA
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