Winter Storm, Gillette / N Campbell
- When
- April 1, 12:00 AM MST to 2:00 PM MST
- Where
- Gillette / N Campbell forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.248, -105.548 (the zone’s center; the record gives no point)
Winter Storm in Wyoming, April 1, 1999
A strong low pressure system over the Rocky Mountains moved out over the Central Plains.
Where it happened
Every event with a place to put it; 4 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
- 4
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 strong low pressure system over the Rocky Mountains moved out over the Central Plains. The associated cold front brought 6 to 12 inches of snow over portions of northeastern Wyoming
The radar
The national radar mosaic for the moment the first event began.
Event by event
4 winter storm. Local standard time, as filed.
Winter Storm, Moorcroft / Crook Except E
- When
- April 1, 12:00 AM MST to 2:00 PM MST
- Where
- Moorcroft / Crook Except E forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.589, -104.570 (the zone’s center; the record gives no point)
Winter Storm, South Campbell
- When
- April 1, 12:00 AM MST to 2:00 PM MST
- Where
- South Campbell forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.248, -105.548 (the zone’s center; the record gives no point)
Winter Storm, Wyoming Black Hills / E Crook / X Ne Weston
- When
- April 1, 12:00 AM MST to 2:00 PM MST
- Where
- Wyoming Black Hills / E Crook / X Ne Weston forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 44.215, -104.569 (the zone’s center; the record gives no point)
What these are
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heavy Snow in California, April 1 to 2, 1999
- Winter Storm in Utah, April 1 to 2, 1999
- Rip Current in Florida, April 1, 1999
- Cold in Utah, April 1 to 3, 1999
- Blizzard in North Dakota, April 1, 1999
- Damaging Wind in Georgia, April 1, 1999
- Drought in New York, April 1 to 30, 1999
- Drought in Maine, April 1 to 30, 1999
- Drought in Texas, April 1 to 29, 1999
- High Wind in New Mexico, April 1, 1999
- Winter Storm in Colorado, April 1 to 2, 1999
- Flooding in California, April 1, 1999
More
Every storm in Wyoming in 1999Every state in 1999This day in weather historyWarnings in Wyoming, April 1999
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: 5695566, 5695567, 5695568, 5695569.