Thunderstorm Wind, Floyd
- When
- June 6, 4:10 PM CST
- Where
- Floyd County, Rockford
- Measured
- 51 kt (59 mph)
- Crop damage
- $25,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.050, -92.970
Damaging Winds in Iowa, June 6, 1999
In Osage and St Ansgar (Mitchell County), windows were blown out and grain bins collapsed.
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
- $370,000
- Crop damage
- $245,000
- Events
- 6
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 ARX wrote it up.
Winds gusting up to 70 mph caused widespread damage with numerous trees and power lines downed.In Osage and St Ansgar (Mitchell County), windows were blown out and grain bins collapsed.
The radar
The Des Moines radar (KDMX), 159 km away, was scanning. The volume nearest the first event began at 22:10 UTC.
Event by event
6 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Mitchell
- When
- June 6, 4:30 PM CST
- Where
- Mitchell County, 4 mi NE of Osage
- Measured
- 56 kt (64 mph)
- Property damage
- $65,000
- Crop damage
- $35,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.320, -92.770
Thunderstorm Wind, Floyd
- When
- June 6, 6:46 PM CST
- Where
- Floyd County, Nora Spgs
- Measured
- 52 kt (60 mph)
- Property damage
- $50,000
- Crop damage
- $40,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.150, -93.000
Thunderstorm Wind, Mitchell
- When
- June 6, 7:03 PM CST
- Where
- Mitchell County, Osage
- Measured
- 61 kt (70 mph)
- Property damage
- $70,000
- Crop damage
- $45,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.280, -92.820
Thunderstorm Wind, Mitchell
- When
- June 6, 7:30 PM CST
- Where
- Mitchell County, St Ansgar
- Measured
- 61 kt (70 mph)
- Property damage
- $125,000
- Crop damage
- $55,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.380, -92.930
Thunderstorm Wind, Howard
- When
- June 6, 7:35 PM CST
- Where
- Howard County, Chester
- Measured
- 58 kt (67 mph)
- Property damage
- $60,000
- Crop damage
- $45,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.500, -92.370
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in North Dakota, June 6, 1999
- Tornadoes and Hail in Wisconsin, June 6, 1999
- Tornadoes and Hail in Iowa, June 6, 1999
- Damaging Winds in Minnesota, June 6, 1999
- Damaging Winds and Lightning Strike in Wisconsin, June 6, 1999
- Flash Flood in North Dakota, June 6, 1999
- Damaging Winds in Wisconsin, June 6, 1999
- Damaging Wind in Wisconsin, June 6, 1999
- Lightning Strike in Wisconsin, June 6, 1999
- Hail and Damaging Winds in Missouri, June 6, 1999
- Hail and Damaging Winds in Minnesota, June 6, 1999
- Hail and Damaging Winds in Iowa, June 6, 1999
More
Every storm in Iowa in 1999Every state in 1999This day in weather historyWarnings in Iowa, 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: 5703260, 5703255, 5703256, 5703257, 5703258, 5703259.