Thunderstorm Wind, Morrison
- When
- June 21, 6:12 PM CST
- Where
- Morrison County, 1 mi W of Royalton
- Measured
- 55 kt (63 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 45.830, -94.320
Trees toppled onto power lines.
Hail and Damaging Wind in Minnesota, June 21, 1999
3 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
- 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.
The radar
The Minneapolis radar (KMPX), 124 km away, was scanning. The volume nearest the first event began at 00:10 UTC.
Event by event
3 hail, 1 thunderstorm wind. Local standard time, as filed.
Hail, Morrison
- When
- June 21, 6:50 PM CST
- Where
- Morrison County, 3 mi NW of Royalton
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 45.870, -94.350
Hail, Morrison
- When
- June 21, 7:02 PM CST
- Where
- Morrison County, 2 mi E of Royalton
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 45.830, -94.270
Hail, Morrison
- When
- June 21, 7:20 PM CST
- Where
- Morrison County, 2 mi E of Royalton
- Measured
- 1.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 45.830, -94.270
Farmer's entire field of corn flattened, ground white as snow from hail. Strong thunderstorm winds combined with wind driven hail to punch holes in house siding. Roof blown off pole building.
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
- Rip Current in Florida, June 21, 1999
- Tornadoes and Hail in Montana, June 21, 1999
- Hail in North Dakota, June 21, 1999
- Flash Flood and Damaging Wind in Texas, June 21, 1999
- Flash Flooding in Texas, June 21, 1999
- Flash Flooding in Texas, June 21, 1999
- Flash Flooding in Texas, June 21, 1999
- Lightning Strike in Florida, June 21, 1999
- Lightning Strike in Colorado, June 21, 1999
- Hail and Damaging Winds in Montana, June 21, 1999
- Hail in North Dakota, June 21, 1999
- Hail in Nebraska, June 21, 1999
More
Every storm in Minnesota in 1999Every state in 1999This day in weather historyWarnings in Minnesota, June 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: 5708213, 5708210, 5708211, 5708212.