285
FXUS65 KBOI 051202
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
602 AM MDT TUE MAY 5 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- WINDY CONDITIONS THIS AFTERNOON WITH NORTHERLY WINDS.
- ISOLATED AFTERNOON/EVENING SHOWERS AND THUNDERSTORMS TODAY
OVER THE MOUNTAINS OF S IDAHO AND SE OREGON, OTHERWISE DRY.
- ABOVE NORMAL TEMPERATURES CONTINUE WITH 10-15 DEGREES ABOVE
NORMAL BY NEXT WEEK.
SHORT TERM /THROUGH THURSDAY NIGHT/
ISSUED 406 AM MDT TUE MAY 5 2026
NORTHERLY FLOW WILL CONTINUE OVER THE AREA AS A TROUGH REMAINS
OVER SOUTHERN CA, WITH COOL AIR EAST OF THE ROCKIES AND A RIDGE
OVER SW BRITISH COLUMBIA. AIR FLOW WILL CONVERGE OVER THE
CENTRAL ID MOUNTAINS AND MAGIC VALLEY, AS AIR FROM EASTERN OR
CONVERGES WITH AIR FROM EASTERN ID AND MT MOVING DOWN THE SNAKE
BASIN. THIS CONVERGENCE ZONE FAVORS ISOLATED SHOWERS AND
THUNDERSTORMS TUESDAY AFTERNOON. ELSEWHERE WINDY NORTHERLY
CONDITIONS EXPECTED TUESDAY AFTERNOON WITH GUSTS OF 30 TO 40
MPH. NORTHWEST FLOW CONTINUES INTO THURSDAY WITH DRY AND BREEZY
CONDITIONS DURING THE AFTERNOON. TEMPERATURES RANGE AROUND 5 TO
10 DEGREES ABOVE NORMAL IN THE SHORT TERM.
LONG TERM /FRIDAY THROUGH TUESDAY/
ISSUED 406 AM MDT TUE MAY 5 2026
THROUGH THE AREA ON FRIDAY AFTERNOON, BRINGING BREEZY CONDITIONS
AND LOWERING TEMPERATURES TO NEAR NORMAL. THEN THE UPPER LEVEL
RIDGE REDEVELOPS OVER THE WESTERN US, WITH THE WARMEST
TEMPERATURES OF THE SEASON BY NEXT MONDAY AND TUESDAY.
TEMPERATURES RISE 15 TO 20 DEGREES ABOVE NORMAL WITH HIGHS OF
85 TO 90 DEGREES IN THE SNAKE BASIN.
AVIATION /12Z TUESDAY THROUGH WEDNESDAY/
ISSUED 558 AM MDT TUE MAY 5 2026
VFR. AREAS OF SMOKE. ISOLATED SHOWERS/THUNDERSTORMS ACROSS THE
HIGHER TERRAIN OF SOUTHEAST OREGON AND CENTRAL ID MOUNTAINS THIS
AFTERNOON AND EVENING. GUSTY ERRATIC OUTFLOW WINDS POSSIBLE
WITH THE STRONGER STORMS. SURFACE WINDS: W-NW 15-25 KT WITH
GUSTS UP TO 35 KT THROUGH THE EVENING. WINDS ALOFT AT 10K FT
MSL: NW-NE 15-30 KT.
KBOI...VFR. CUMULUS BUILDUPS EAST OF TERMINAL THIS AFT. SURFACE
WINDS: SE 5-10 KT THIS MORNING SHIFTING TO NW 15-20 KT WITH
GUSTS AROUND 30 KT THIS AFTERNOON.
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.....KA
SHORT TERM...KA
LONG TERM....KA
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