Heavy Snow, Wyoming Black Hills
- When
- December 30, 2:00 AM MST to 7:00 PM MST
- Where
- Wyoming Black Hills forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 44.215, -104.569 (the zone’s center; the record gives no point)
Heavy Snow and Winter Weather in Wyoming, December 30, 2024
A passing cold front and upper-level shortwave brought gusty northwest winds and colder air to the area. The gusty winds and moisture in place helped to produce a prolonged period of heavy upslope snowfall during the morning and afternoon hours across parts of the Wyoming Black Hills and Bear Lodge Mountains.
Where it happened
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
The toll
- 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.
What happened
The episode as NWS UNR wrote it up.
A passing cold front and upper-level shortwave brought gusty northwest winds and colder air to the area. The gusty winds and moisture in place helped to produce a prolonged period of heavy upslope snowfall during the morning and afternoon hours across parts of the Wyoming Black Hills and Bear Lodge Mountains. Amounts of 5 to 12 inches were common across the higher Wyoming Black Hills, especially the Four Corners area to O'Neill Pass. Amounts of 2 to 6 inches fell over the rest of the Wyoming Black Hills, Bear Lodge Mountains and parts of northeast Crook County. The heavy snow impacted travel across a good part of the area during the daytime and evening hours.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 heavy snow, 1 winter weather. Local standard time, as filed.
Winter Weather, Northeastern Crook
- When
- December 30, 4:00 AM MST to 6:00 PM MST
- Where
- Northeastern Crook forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 44.589, -104.570 (the zone’s center; the record gives no point)
What these are
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Cold in California, December 30, 2024
- High Wind in Kansas, December 30, 2024
- High Wind and Strong Wind in Colorado, December 30, 2024
- High Wind in Kansas, December 30, 2024
- Heavy Snow and Winter Weather in South Dakota, December 30, 2024
- Dense Fog in California, December 30, 2024
- Winter Weather in South Dakota, December 30 to 31, 2024
- High Wind in New Mexico, December 30, 2024
- High Wind in Wyoming, December 30, 2024
- Winter Weather in Wyoming, December 30, 2024
- Flood in Arkansas, December 30 to 31, 2024
- Dense Fog in Utah, December 30, 2024
More
Every storm in Wyoming in 2024Every state in 2024This day in weather historyWarnings in Wyoming, December 2024
Sources
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: 1222094, 1222095.