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



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SHORT TERM...KA

LONG TERM....KA

AVIATION.....JDS