238
FXUS65 KBOI 250302
AFDBOI
Area Forecast Discussion
National Weather Service Boise ID
902 PM MDT Tue Jun 24 2025
.DISCUSSION...Isolated showers and thunderstorms along the ID/NV
border south of Twin Falls have dissipated. Southwest flow will
direct warmer air into the region on Wednesday as highs are
expected to reach or exceed 90F in the Treasure Valley. There
is a weak cold front that may initiate a shower/thunderstorm as
it moves into Baker County Wednesday afternoon, otherwise dry
conditions prevail. No updates.
&&
.AVIATION...VFR. Surface winds: variable less than 10 kt. Winds
aloft at 10kft MSL: W-SW 5-15 kt.
KBOI...VFR. Surface winds: NW less than 10 kt becoming SE after
Wed/03Z.
&&
.PREV DISCUSSION...
SHORT TERM...Tonight through Thursday night... Showers and
isolated thunderstorms are beginning to develop near the ID/NV
border (at the time of writing this) as mid-level moisture gets
advected in from the south. While instability remains fairly
weak, with inverted-v soundings and DCAPE values already over
1000j/kg, storms will be capable of wind gusts up to 45 mph.
Showers and thunder will taper off after 6pm MDT . Flow aloft
will take on a more southwesterly component on Wednesday ahead
of an incoming shortwave, allowing temperatures to increase to
around 90 degrees throughout the Snake Plain. Early Thursday,
the shortwave trough and associated cold front will pass through
the area, dropping Thursdays high temperatures by 2-5 degrees
compared to Wednesdays. This cold frontal passage is looking to
be dry, only bringing with it increased cloud cover and breezy
northwest winds through Thursday.
LONG TERM...Friday through Tuesday... A shallow long-wave
trough will sit over our area to end the week, keeping us under
near zonal flow aloft. This will keep temperatures near normal
through Saturday. By Sunday, deterministic and ensemble models
show that ridging will begin building in over our area.
Temperatures take on a warming trend, making it to 10-15 degrees
above normal come Monday/Tuesday. Slight chances (15-20%) of
precipitation creep back into the forecast on late
Monday/Tuesday, mostly in eastern Oregon and across higher
terrain, as guidance hints at the ridge breaking down early next
week.
&&
.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.
OR...None.
&&
$$
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DISCUSSION...BW
AVIATION.....BW
SHORT TERM...NF
LONG TERM....NF
Nearest avalanche forecast regions
Elkhorns
2mi away by Wallowa Avalanche Center
No data reported
Southern Wallowas
43mi away by Wallowa Avalanche Center
No data reported
Northern Wallowas
46mi away by Wallowa Avalanche Center
No data reported
Blues
54mi away by Wallowa Avalanche Center
No data reported
PAC Advisory Area
90mi away by Payette Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Banner Summit
145mi away by Sawtooth Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Sawtooth & Western Smoky Mtns
163mi away by Sawtooth Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Newberry
164mi away by Central Oregon Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Mt Hood
171mi away by Northwest Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
Central Cascades
176mi away by Central Oregon Avalanche Center
No Rating - Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.
