Idaho, 2023Heavy Snow in Idaho, December 1 to 2, 2023
December 1 to 2, 2023 · NWS MSO · 2 events in 2 counties and zones
Northwest flow set up across the region with a series of disturbances that caused periods of moderate to heavy snowfall.
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.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
Northwest flow set up across the region with a series of disturbances that caused periods of moderate to heavy snowfall.
Heavy Snow, Northern Clearwater Mountains
- When
- December 1, 1:00 PM PST to December 2, 11:00 PM PST
- Where
- Northern Clearwater Mountains forecast zone
- Reported by
- Department of Highways
- Coordinates
- 46.674, -115.657 (the zone’s center; the record gives no point)
Moderate to heavy snow occurred, causing widespread snow-covered roads. Difficult travel conditions were reported by the Idaho Transportation Department on Highway 12 near and over Lolo Pass. Elk River picked up over 15 inches of snow accumulation.
Heavy Snow, Southern Clearwater Mountains
- When
- December 1, 7:28 PM PST to December 2, 11:00 PM PST
- Where
- Southern Clearwater Mountains forecast zone
- Reported by
- Department of Highways
- Coordinates
- 45.844, -115.467 (the zone’s center; the record gives no point)
Difficult travel conditions were reported on Highway 12 at Lolo Pass by the Idaho Transportation Department. Chains were required over the pass for a period of time. Lolo Pass picked up around 17 inches of total snow accumulation.
- Heavy Snow
- Snowfall reaching the local warning threshold without the other hazards of a winter storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Heavy Snow and Winter Weather in Washington, December 1 to 4, 20233 deaths · $5,000 · 6 events
- Heavy Snow and Winter Weather in Montana, December 1 to 4, 20231 death · 3 injured · $130,000 · 3 events
- Drought in Missouri, December 1 to 31, 2023$52 million · 22 events
- Heavy Snow and Winter Weather in Idaho, December 1 to 4, 20231 death · 1 injured · $15,000 · 17 events
- Drought in Kansas, December 1 to 31, 2023$4.8 million · 1 event
- Wildfire in Colorado, December 1 to 2, 2023$2.0 million · 1 event
- Drought in Iowa, December 1 to 31, 202347 events
- Drought in New Mexico, December 1 to 31, 202339 events
- Flash Flood in Louisiana, December 1, 2023$60,000 · 1 event
- Drought in Tennessee, December 1 to 31, 202336 events
- Drought in Georgia, December 1 to 31, 202335 events
- Drought in Virginia, December 1 to 31, 202324 events
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: 1147256, 1147257.