351
FXUS65 KBOI 051006
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
406 AM MDT TUE MAY 5 2026
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/
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/
A DRY COLD FRONT WILL MOVE
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 /06Z TUESDAY THROUGH WEDNESDAY/
ISSUED 144 AM MDT TUE MAY 5 2026
VFR WITH WITH MOSTLY CLEAR SKIES TODAY. PATCHY VALLEY SMOKE IN THE
BOISE MOUNTAINS. ISOLATED SHOWERS/THUNDERSTORMS ACROSS THE HIGHER
TERRAIN OF SOUTHEAST OREGON AND THE WESTERN MAGIC VALLEY THIS
AFTERNOON AND EVENING. GUSTY OUTFLOW WINDS AND BLOWING DUST 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 WITH SOME HIGH CLOUDS. SURFACE WINDS: NW 8-12 KT
INCREASING TO 15-20 KT WITH GUSTS UP TO 30 KTS 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
SHORT TERM...KA
LONG TERM....KA
AVIATION.....JDS
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