A large winter system moving out of Washington state spread heavy snow over the Intermountain West late December 12th and overnight into the 13th as the cold front lifted through the Cascade Mountains into the West Central and Boise Mountains of Idaho. Mountain areas saw six to ten inches of snowfall while valley areas reported four to six inches.
Every event with a place to put it; 2 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 BOI wrote it up.
A large winter system moving out of Washington state spread heavy snow over the Intermountain West late December 12th and overnight into the 13th as the cold front lifted through the Cascade Mountains into the West Central and Boise Mountains of Idaho. Mountain areas saw six to ten inches of snowfall while valley areas reported four to six inches. Many accidents were reported by law enforcement agencies.
The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
Cooperative observers and trained spotters in the valleys reported around four inches at Idaho City and Centerville. Some of the Snotel sites in the mountains recorded six to eight inches.
Cooperative observer and trained spotter reports in the valleys ranged from four inches at Cambridge, Cascade and Donnelly to seven at Yellow Pine and eight to nine inches around the McCall area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2008Every state in 2008This day in weather historyWarnings in Idaho, December 2008
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 2026-09-24. Each event’s entry at NCEI: 142584, 142586.