Hail, Stevens
- When
- August 9, 12:53 AM CST
- Where
- Stevens County, 1 mi W of Donnelly
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 45.700, -96.030
Tornadoes and Flooding in Minnesota, August 9, 1999
12 tornado, 9 hail, 2 flood, 2 funnel cloud, 1 thunderstorm wind, as filed by the National Weather Service.
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
- $610,000
- Crop damage
- None recorded
- Events
- 26
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 Aberdeen radar (KABR), 187 km away, was scanning. The volume nearest the first event began at 06:51 UTC.
Event by event
12 tornado, 9 hail, 2 flood, 2 funnel cloud, 1 thunderstorm wind. Local standard time, as filed.
Hail, Stevens
- When
- August 9, 1:20 AM CST
- Where
- Stevens County, 1 mi N of Morris
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 45.600, -95.930
Thunderstorm Wind, Stevens
- When
- August 9, 2:00 AM CST
- Where
- Stevens County, Morris to 3 mi of Morris
- Measured
- 55 kt (63 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 45.620, -95.980
Estimated winds. Roof partially off barn. Large branches down.
Hail, Swift
- When
- August 9, 2:00 AM CST
- Where
- Swift County, 5 mi E of Appleton
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 45.200, -95.920
Hail, Chippewa
- When
- August 9, 2:20 AM CST
- Where
- Chippewa County, Montevideo
- Measured
- 0.88 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.950, -95.720
Hail, Chippewa
- When
- August 9, 2:30 AM CST
- Where
- Chippewa County, Watson
- Measured
- 0.88 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 45.020, -95.820
Hail, Brown
- When
- August 9, 7:17 AM CST
- Where
- Brown County, Comfrey
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.120, -94.900
Hail, Watonwan
- When
- August 9, 7:38 AM CST
- Where
- Watonwan County, La Salle
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.070, -94.570
Hail, Brown
- When
- August 9, 7:50 AM CST
- Where
- Brown County, 7 mi E of Sleepy Eye
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.300, -94.600
Flood, Blue Earth
- When
- August 9, 8:00 AM CST to 9:00 AM CST
- Where
- Blue Earth County, Mankato
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.035, -94.067 (the zone’s center; the record gives no point)
Urban flooding reported within the city limits.. Estimated rainfall of 3.5 inches. Time of event estimated.
Flood, Nicollet
- When
- August 9, 8:00 AM CST to 9:00 AM CST
- Where
- Nicollet County, Nicollet
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.350, -94.247 (the zone’s center; the record gives no point)
Rainfall of 4.15 inches reported in the city of Nicollet. Time period estimated.
Hail, Blue Earth
- When
- August 9, 8:20 AM CST
- Where
- Blue Earth County, Mankato
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 44.170, -94.020
Tornado, Stearns
- When
- August 9, 4:55 PM CST
- Where
- Stearns County, Belgrade
- Rating
- F1
- Path length
- 0.3 mi
- Path width
- 25 yd
- Reported by
- GENERAL PUBLIC
- Coordinates
- 45.450, -95.000
Roof partially off small cafe. Siding peeled off and lumber tossed around a lumber yard. Large steel tank blown off trailer.
Tornado, Nicollet
- When
- August 9, 5:34 PM CST
- Where
- Nicollet County, 2 mi NW of St Peter
- Rating
- F1
- Path length
- 0.8 mi
- Path width
- 25 yd
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.350, -93.980
Sixty by thirty foot storage building destroyed, roof of garage peeled off.
Tornado, Le Sueur
- When
- August 9, 5:37 PM CST to 5:55 PM CST
- Where
- Le Sueur County, Cleveland to 4 mi S of Le Center
- Rating
- F1
- Path length
- 9 mi
- Path width
- 50 yd
- Property damage
- $610,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.370, -93.880
Dairy barn and machine shop destroyed three miles northwest of Cleveland. Four miles east of Cleveland, machine shed, two old cattle barns, and a garage leveled on family farm. Many acres of corn flattened along the twister's path. Damages county wide only included machinery and property values. No estimates on livestock lost though several cattle were killed.
Tornado, Goodhue
- When
- August 9, 6:08 PM CST
- Where
- Goodhue County, 2 mi SE of Welch
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 25 yd
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.550, -92.700
Brief touchdown in wooded area.
Funnel Cloud, Le Sueur
- When
- August 9, 6:32 PM CST to 6:35 PM CST
- Where
- Le Sueur County, 1 mi E of Waterville
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.371, -93.730 (the zone’s center; the record gives no point)
Funnel Cloud remained over western end of Lake Sakatah.
Tornado, Le Sueur
- When
- August 9, 6:34 PM CST to 6:37 PM CST
- Where
- Le Sueur County, 3 mi NE of Waterville
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 40 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.250, -93.520
Multiple vortex tornado crossed open fields and continued into Rice County.
Tornado, Rice
- When
- August 9, 6:37 PM CST to 6:39 PM CST
- Where
- Rice County, Morristown to 5 mi NW of Morristown
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 40 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.250, -93.530
Multiple vortex tornado crossed open fields. Continuation of tornado from Le Sueur County.
Tornado, Le Sueur
- When
- August 9, 6:38 PM CST to 6:40 PM CST
- Where
- Le Sueur County, Waterville to 4 mi NE of Waterville
- Rating
- F0
- Path length
- 0.3 mi
- Path width
- 25 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.250, -93.520
Few trees down. Tornado continued into Rice County and Camp Omega.
Tornado, Rice
- When
- August 9, 6:40 PM CST to 6:42 PM CST
- Where
- Rice County, 5 mi NW of Morristown
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 25 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.280, -93.520
Trees down in Camp Omega. Continuation of tornado from Le Sueur County.
Funnel Cloud, Goodhue
- When
- August 9, 6:45 PM CST
- Where
- Goodhue County, 6 mi N of Kenyon
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.410, -92.723 (the zone’s center; the record gives no point)
Tornado, Rice
- When
- August 9, 6:46 PM CST to 6:50 PM CST
- Where
- Rice County, Morristown to 1 mi S of Warsaw
- Rating
- F0
- Path length
- 1 mi
- Path width
- 50 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 44.230, -93.430
Few trees felled. Tornado cut swath through bean field.
Tornado, Steele
- When
- August 9, 7:39 PM CST to 7:43 PM CST
- Where
- Steele County, Merton to 6 mi SE of Merton
- Rating
- F0
- Path length
- 1.5 mi
- Path width
- 25 yd
- Reported by
- STORM CHASER
- Coordinates
- 44.100, -93.070
Touchdown in open field. Tornado continued into Dodge County of southeast Minnesota.
Tornado, Faribault
- When
- August 9, 7:41 PM CST
- Where
- Faribault County, 4 mi N of Walters
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 25 yd
- Reported by
- STORM CHASER
- Coordinates
- 43.650, -93.680
Touchdown in open field near I-90 and County Road 31.
Tornado, Faribault
- When
- August 9, 7:47 PM CST
- Where
- Faribault County, 2 mi SE of Kiester
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 25 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.520, -93.680
Brief touchdown in open field.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- 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.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Damaging Winds in Iowa, August 9, 1999
- Hail in Minnesota, August 9, 1999
- Hail and Damaging Winds in Mississippi, August 9, 1999
- Damaging Winds in Mississippi, August 9, 1999
- Damaging Winds in Arkansas, August 9, 1999
- Damaging Wind in Oklahoma, August 9, 1999
- Lightning Strike in Oklahoma, August 9, 1999
- Hail and Damaging Wind in Minnesota, August 9, 1999
- Hail and Damaging Winds in Louisiana, August 9, 1999
- Hail and Damaging Wind in North Dakota, August 9, 1999
- Hail in Minnesota, August 9, 1999
- Hail in Iowa, August 9, 1999
More
Every storm in Minnesota in 1999Every state in 1999This day in weather historyThe tornado archive for Minnesota, 1999Warnings in Minnesota, August 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: 5719116, 5719115, 5719107, 5719108, 5719117, 5719118, 5719109, 5719110, 5719111, 5719113, 5719114, 5719112, 5719119, 5719120, 5719121, 5719122, 5719213, 5719210, 5719123, 5719211, 5719124, 5719212, 5719125, 5719207, 5719208, 5719209.