Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 242030

Area Forecast Discussion
National Weather Service Boise ID
230 PM MDT Fri Jun 24 2022

.SHORT TERM...Tonight through Sunday night...Clear and cool tonight
as an upper trough moves eastward across northern Idaho into Montana.
Then warmer Saturday and warmer again Sunday as an upper ridge builds
in from the south. Skies will continue clear through Sunday but high
clouds will increase from the south Sunday night in eastern Oregon.
Light and variable winds tonight, then light to moderate winds
generally from the southeast through the weekend.

.LONG TERM...Monday through Friday...An upper level ridge will
strengthen Monday bringing warmer temperatures. Many locations in
the lower valleys will reach 100 degrees for the first time this
season on Monday, with temperatures around 15 degrees above normal.
Monsoon moisture combined with hot temperatures will enhance the
threat of thunderstorms on Monday afternoon into Tuesday. NBM
guidance did not have any mention of thunderstorms, so manually
added this to the forecast. A dry cold front will push the monsoon
moisture to the east and lower temperatures on Tuesday. Temperatures
will cool to near normal Wednesday and Thursday. By Friday, the flow
will shift to the southwest again, bringing warmer temperatures
around 5 degrees above normal.


.AVIATION...Isolated thunderstorms this afternoon south of the
NV/ID border. Surface winds: W-NW 5-15kt with afternoon gusts to
25kt. Winds aloft at 10kft MSL: W-NW 15-25kt becoming variable
5-15kt by 00z/Saturday.

Weekend Outlook...Mostly clear with breezy E-SE winds on Saturday
afternoon. Isolated showers and thunderstorms in SE OR and near
the NV border on Sunday afternoon.





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