Hail, Larimer
- When
- May 31, 1:05 PM MST
- Where
- Larimer County, 12 mi NW of Ft Collins
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.700, -105.250
Tornado and Hail in Colorado, May 31, 1999
7 hail, 1 tornado, 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
- 8
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 national radar mosaic for the moment the first event began.
Event by event
7 hail, 1 tornado. Local standard time, as filed.
Hail, Larimer
- When
- May 31, 1:35 PM MST
- Where
- Larimer County, 4 mi W of Ft Collins
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.580, -105.170
Hail, Weld
- When
- May 31, 2:20 PM MST
- Where
- Weld County, 5 mi S of Roggen
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.100, -104.370
Hail, Weld
- When
- May 31, 2:34 PM MST
- Where
- Weld County, 4 mi SE of Roggen
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.130, -104.320
Hail, Morgan
- When
- May 31, 2:35 PM MST
- Where
- Morgan County, 9 mi S of Wiggins
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.100, -104.070
Hail, Lincoln
- When
- May 31, 3:31 PM MST
- Where
- Lincoln County, 8 mi SE of Arriba
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.200, -103.170
Tornado, Washington
- When
- May 31, 4:50 PM MST
- Where
- Washington County, 5 mi WNW of Akron
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 50 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.200, -103.280
A small tornado touched down briefly and tore the roof off an abandoned house.
Hail, Washington
- When
- May 31, 4:58 PM MST
- Where
- Washington County, 5 mi WNW of Akron
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.200, -103.280
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes in Colorado, May 31, 1999
- Tornadoes and Flash Flooding in Oklahoma, May 31, 1999
- Rip Current in Florida, May 31, 1999
- Rip Current in Florida, May 31, 1999
- Tornado in Michigan, May 31, 1999
- Hail and Damaging Winds in Kansas, May 31, 1999
- Tornadoes and Hail in Kansas, May 31, 1999
- Hail in Kansas, May 31, 1999
- Hail and Damaging Winds in Oklahoma, May 31, 1999
- Flash Flood in Louisiana, May 31, 1999
- Tornado and Hail in Texas, May 31, 1999
- Tornado in Colorado, May 31, 1999
More
Every storm in Colorado in 1999Every state in 1999This day in weather historyThe tornado archive for Colorado, 1999Warnings 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: 5698909, 5698910, 5698911, 5698912, 5698913, 5698914, 5698915, 5698916.