WWUS85 KBOI 211848
SPSBOI

Special Weather Statement
National Weather Service Boise ID
1248 PM MDT Tue Apr 21 2026

IDZ011-013-220100-
West Central Mountains-Boise Mountains-
Including the cities of Big Creek, McCall, Cascade, Warm Lake,
Bear, Ola, Cuprum, Anderson Dam, Pine, and Prairie
1248 PM MDT Tue Apr 21 2026

Significant mountain snows possible on Wednesday and Thursday.
Snow accumulations of 10 to 20 inches on the peaks above 6000
feet especially on the northwest facing peaks.

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IDZ012-014>016-028>030-033-ORZ061>064-220100-
Lower Treasure Valley-Upper Treasure Valley-Southwest Highlands-
Western Magic Valley-Camas Prairie-Owyhee Mountains-
Southern Twin  Falls County-Upper Weiser River-Harney County-
Baker County-Malheur County-Oregon Lower Treasure Valley-
Including the cities of Nampa, Caldwell, Boise, Grasmere, Riddle,
Murphy Hot Springs, Three Creek, Twin Falls, Blaine, Corral,
Fairfield, Hill City, Selby, Soldier, Reynolds, Silver City,
Hollister, Rogerson, Council, Fruitvale, Glendale, Goodrich,
Indian Valley, Mesa, Cambridge, Buchanan, Burns, Crane, Dunnean,
New Princeton, Venator, Diamond, Baker, Malheur City, Ontario,
and Nyssa
1248 PM MDT Tue Apr 21 2026 /1148 AM PDT Tue Apr 21 2026/

A strong cold front will bring windy conditions to the area this
evening. Wind gusts up to 50 mph possible along the cold front
this afternoon and evening. The front will track across eastern OR
this afternoon and into SW Idaho this evening.

$$