Idaho, 2024Winter Storm and Avalanche in Idaho, January 17 to 18, 2024
January 17 to 18, 2024 · NWS PIH · 9 events in 9 counties and zones
Localized heavy snow fell and at least one avalanche occurred closing a road.
Every event with a place to put it; 9 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
- 9
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.
Localized heavy snow fell and at least one avalanche occurred closing a road.
Event by event
3 winter weather, 2 heavy snow, 2 winter storm, 2 avalanche. Local standard time, as filed.
Heavy Snow, Big Hole Mountains
- When
- January 17, 5:00 AM MST to January 18, 8:00 PM MST
- Where
- Big Hole Mountains forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 43.644, -111.494 (the zone’s center; the record gives no point)
A spotter measured 14.5 inches of snow 4 miles west of Victor.
Heavy Snow, Marsh and Arbon Highlands
- When
- January 17, 5:00 AM MST to January 18, 8:00 PM MST
- Where
- Marsh and Arbon Highlands forecast zone
- Reported by
- COOP Observer
- Coordinates
- 42.838, -112.256 (the zone’s center; the record gives no point)
The Inkom COOP observer measured 9 inches of snow.
Winter Weather, Bear Lake Valley
- When
- January 17, 5:00 AM MST to January 18, 8:00 AM MST
- Where
- Bear Lake Valley forecast zone
- Reported by
- COOP Observer
- Coordinates
- 42.285, -111.330 (the zone’s center; the record gives no point)
COOP observers measured 8 inches of snow at Bern and 4 inches east of St Charles.
Winter Weather, Blackfoot Mountains
- When
- January 17, 5:00 AM MST to January 18, 1:00 PM MST
- Where
- Blackfoot Mountains forecast zone
- Reported by
- COOP Observer
- Coordinates
- 43.125, -111.858 (the zone’s center; the record gives no point)
The COOP observer in Bone measured 7.0 inches of snowfall.
Winter Weather, Franklin-Eastern Oneida Region
- When
- January 17, 6:00 AM MST to January 18, 10:00 AM MST
- Where
- Franklin-Eastern Oneida Region forecast zone
- Reported by
- COOP Observer
- Coordinates
- 42.188, -112.176 (the zone’s center; the record gives no point)
The Preston COOP observer measured 5.9 inches of snow.
Winter Storm, Caribou Range
- When
- January 17, 12:00 PM MST to January 18, 12:00 PM MST
- Where
- Caribou Range forecast zone
- Reported by
- Department of Highways
- Coordinates
- 42.815, -111.502 (the zone’s center; the record gives no point)
US Highway 26 closed from Ririe to Swan Valley from 1207 AM MST to 1057 AM MST on the 18th. Wind gusts of 40 to 50 mph combined with snowfall as the Swan Valley COOP observer reported 4.0 inches caused extensive blowing and drifting snow and near impossible snow removal.
Winter Storm, Upper Snake River Plain
- When
- January 17, 12:00 PM MST to January 18, 1:00 PM MST
- Where
- Upper Snake River Plain forecast zone
- Reported by
- Department of Highways
- Coordinates
- 43.805, -111.767 (the zone’s center; the record gives no point)
US Highway 26 closed from Ririe to Swan Valley from 1207 AM MST to 1057 AM MST on the 18th. Wind gusts of 40 to 50 mph combined with snowfall caused extensive blowing and drifting snow and near impossible snow removal. Snowfall reports were generally 1 to 3 inches with the event.
Avalanche, Sun Valley Region
- When
- January 18, 5:00 AM MST to 8:00 PM MST
- Where
- Sun Valley Region forecast zone
- Reported by
- Department of Highways
- Coordinates
- 43.826, -114.131 (the zone’s center; the record gives no point)
An avalanche spilled across State Highway 75 at Galena Summit forcing the road to be closed on the morning of the 18th through about 315 Pm MST. It was closed from Ketchum to Stanley from milepost 145 to 165. 4 inches of snow had fallen in Ketchum.
Avalanche, Sawtooth-Stanley Basin
- When
- January 18, 5:00 AM MST to 7:00 PM MST
- Where
- Sawtooth-Stanley Basin forecast zone
- Reported by
- Department of Highways
- Coordinates
- 43.826, -114.131 (the zone’s center; the record gives no point)
An avalanche spilled across State Highway 75 at Galena Summit forcing the road to be closed on the morning of the 18th through about 315 PM MST. It was closed from Ketchum to Stanley from milepost 145 to 165. The Stanley COOP observer measured 6.4 inches of snowfall prior to the event.
- Heavy Snow
- Snowfall reaching the local warning threshold without the other hazards of a winter storm.
- Winter Weather
- Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
- Avalanche
- A mass of snow sliding down a mountainside that caused a death, an injury or damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Ice Storm and Heavy Snow in Washington, January 17 to 19, 202414 events
- High Surf in Hawaii, January 17 to 18, 202412 events
- Winter Storm and High Wind in Colorado, January 17 to 19, 202470 kt wind · 11 events
- Winter Storm and High Wind in Wyoming, January 17 to 18, 202465 kt wind · 9 events
- Winter Storm and Heavy Snow in Colorado, January 17 to 18, 20247 events
- High Wind in New Mexico, January 17 to 18, 202458 kt wind · 5 events
- High Wind in Wyoming, January 17 to 18, 202466 kt wind · 5 events
- Heavy Snow in Idaho, January 17 to 18, 20243 events
- High Wind in California, January 17, 202465 kt wind · 3 events
- Dense Fog in California, January 17, 20243 events
- High Wind in Texas, January 17 to 18, 202465 kt wind · 3 events
- Heavy Snow in Oregon, January 17 to 18, 20242 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: 1160990, 1160991, 1160992, 1160994, 1160993, 1160997, 1160998, 1160995, 1160996.