Thunderstorm Wind, Larimer
- When
- May 21, 4:59 PM MST
- Where
- Larimer County, 4 mi N of Ft Collins
- Measured
- 52 kt (60 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.630, -105.080
Hail and Damaging Wind in Colorado, May 21, 1999
2 hail, 1 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. 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
- 3
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 radar
The Cheyenne radar (KCYS), 62 km away, was scanning. The volume nearest the first event began at 23:56 UTC.
Event by event
2 hail, 1 thunderstorm wind. Local standard time, as filed.
Hail, Sedgwick
- When
- May 21, 6:45 PM MST
- Where
- Sedgwick County, 4 mi W of Sedgwick
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.930, -102.600
Hail, Sedgwick
- When
- May 21, 7:30 PM MST
- Where
- Sedgwick County, 5 mi S of Sedgwick
- Measured
- 1.5 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.870, -102.520
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flooding in Iowa, May 21 to 25, 1999
- Tornado in Florida, May 21, 1999
- Hail in Nebraska, May 21, 1999
- Lightning Strike in Florida, May 21, 1999
- Hail in Florida, May 21, 1999
- Wildfire in Florida, May 21 to 25, 1999
- Hail in Nebraska, May 21, 1999
- Hail and Damaging Wind in Mississippi, May 21, 1999
- Lightning Strike in Florida, May 21, 1999
- Flash Flooding and Hail in Oklahoma, May 21, 1999
- Hail in Montana, May 21, 1999
- Flash Flood and Hail in New Mexico, May 21, 1999
More
Every storm in Colorado in 1999Every state in 1999This day in weather historyWarnings in Colorado, May 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 2026-09-24. Each event’s entry at NCEI: 5698896, 5698894, 5698895.