107
FXUS65 KBOI 270609
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1209 AM MDT FRI MAR 27 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- COOL, DRY, AND BREEZY TODAY WITH TEMPERATURES SLIGHTLY BELOW
NORMAL.
- DRY WEATHER WITH WARMING TEMPERATURES FRIDAY THROUGH SUNDAY.
- COOL AND UNSETTLED WEATHER NEXT WEEK WITH MOUNTAIN SNOW
POSSIBLE ABOVE 5000 FEET. SIGNIFICANT SNOW ACCUMULATION
POSSIBLE ABOVE 6500 FEET.
SHORT TERM /THROUGH SATURDAY NIGHT/
ISSUED 250 PM MDT THU MAR 26 2026
BREEZY CONDITIONS CONTINUE THIS AFTERNOON BEFORE SUBSIDING
AFTER SUNSET TONIGHT. A RIDGE OF HIGH PRESSURE WILL BUILD INTO
THE AREA WITH WARMER AND DRIER CONDITIONS FOR THE WEEKEND.
TEMPERATURES WILL WARM 5-10 DEGREES ON FRIDAY AND AN ADDITIONAL
5 DEGREES ON SATURDAY. TEMPERATURES WILL WARM TO NEAR RECORD
HIGHS ON SATURDAY.
LONG TERM /SUNDAY THROUGH THURSDAY/
ISSUED 250 PM MDT THU MAR 26 2026
ABOVE-NORMAL TEMPERATURES WILL PERSIST TO START THE LONG-TERM
PERIOD, AS SOUTHERLY FLOW BEGINS TO VEER MORE WESTERLY AS THE
UPPER LEVEL RIDGE SHIFTS EAST. THIS IS IN ADVANCE OF AN UPPER
TROUGH THAT WILL DIG DOWN FROM THE BRITISH COLOMBIA COAST AND
SWING THE AREA INTO AN UNSETTLED WEATHER PATTERN. TEMPERATURES
BOTH SUNDAY AND MONDAY WILL BE 10-15 DEGREES ABOVE NORMAL.
COME LATE MONDAY/EARLY TUESDAY, THE AFOREMENTIONED UPPER TROUGH
AND ITS ASSOCIATED SURFACE COLD FRONT WILL MOVE ACROSS THE
PACIFIC NORTHWEST. THIS WILL ACT TO INCREASE PRECIPITATION
CHANCES, BRING BREEZY TO GUSTY WINDS, AND COOL TEMPERATURES TO
NEAR NORMAL. PRECIPITATION CHANCES WILL INCREASE THROUGH MONDAY
AFTERNOON, INITIALLY OVER HIGHER TERRAIN, BEFORE REACHING 40-80%
AREA-WIDE TUESDAY. THE UNSETTLED PATTERN WILL CONTINUE THROUGH
THE WEEK WITH EMBEDDED SHORT-WAVES WITHIN THE GENERAL TROUGHING
ALOFT. COME LATE WEEK, THERE IS GOOD CONSENSUS ON ANOTHER LOW
DIGGING DOWN THE COAST OF BRITISH COLUMBIA INTO OUR AREA. THIS
WILL INCREASE PRECIPITATION CHANCES TO 50-90% AREA-WIDE COME
THURSDAY AFTERNOON. WITH COOLER TEMPS AND LOWER SNOW LEVELS,
HIGHER ELEVATIONS WILL LIKELY SEE SNOW ACCUMULATION. ELEVATIONS
ABOVE 6000 FT MSL HAVE A 60-80% CHANCE OF AT LEAST 4 INCHES OF
SNOW OVER THE COURSE OF WEDNESDAY AND THURSDAY.
AVIATION /06Z FRIDAY THROUGH SATURDAY/
ISSUED 1156 PM MDT THU MAR 26 2026
VFR WITH SOME SCATTERED HIGH CLOUDS TODAY. SURFACE WINDS:
VARIABLE LESS THAN 8 KT UNTIL 27/12Z, THEN BECOMING E-SE 5-15
KT. WINDS ALOFT AT 10KFT MSL: VARIABLE OR SW LESS THAN 10 KT.
KBOI...VFR WITH MOSTLY CLEAR SKIES. SURFACE WIND VARIABLE LESS
THAN 6 KT OVERNIGHT, THEN BECOMING SE 6-10 KT AFTER 10Z.
WEEKEND OUTLOOK...VFR THROUGH SUNDAY. INCREASING MID- HIGH
CLOUDS SATURDAY, THEN BROKEN-OVERCAST HIGH CLOUDS SUNDAY. BREEZY
W-NW WIND GUSTS UP TO 15-20 KT EACH AFTERNOON, OTHERWISE
VARIABLE SURFACE WINDS LESS THAN 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.....JY
SHORT TERM...KA
LONG TERM....NF
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