A complex, multi-day winter system brought a sharp divide in impacts across the Northern Rockies. An interesting synoptic pattern set up as an unseasonably cold low pressure parked over the region for several days.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MSO wrote it up.
A complex, multi-day winter system brought a sharp divide in impacts across the Northern Rockies. An interesting synoptic pattern set up as an unseasonably cold low pressure parked over the region for several days.
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Fifteen inches of snow fell at the Mountain Meadows SNOTEL. Six inches of snow accumulated at Lolo Pass, and 3.6 inches fell at Dixie. Downed trees were reported on the way to Red River Hot Springs due to the heavy weight of the snow.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2026Every state in 2026This day in weather historyWarnings in Idaho, April 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1322903.