Tornado and Hail in Iowa, August 9, 1993

Name: Tornado and Hail in Iowa, August 9, 1993
Start: 1993-08-09T08:30
End: 1993-08-09T21:57
Location: Iowa

August 9, 1993 · 21 events in 12 counties and zones

13 thunderstorm wind, 7 hail, 1 tornado, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 20 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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 2
Property damage: $803,000
Crop damage: $423,000
Events: 21

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.

Event by event

13 thunderstorm wind, 7 hail, 1 tornado. Local standard time, as filed.

Thunderstorm Wind, Bremer

When: August 9, 8:30 AM CST
Where: Bremer County, Sumner
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $500
Coordinates: 42.775, -92.318 (the zone’s center; the record gives no point)

Thunderstorms rolled through Bremer County. High winds were reported at Sumner, causing numerous trees in the city. Further details will be included in the narrative below.

Hail, Worth

When: August 9, 4:15 PM CST
Where: Worth County, Northwood
Measured: 0.75 in hail
Property damage: $500
Crop damage: $50,000
Coordinates: 43.377, -93.261 (the zone’s center; the record gives no point)

Hail, Howard

When: August 9, 4:25 PM CST
Where: Howard County, Elma
Measured: 0.75 in hail
Property damage: $500
Crop damage: $50,000
Coordinates: 43.357, -92.317 (the zone’s center; the record gives no point)

Tornado, Chickasaw

When: August 9, 4:40 PM CST to 4:52 PM CST
Where: Chickasaw County, New Hampton
Rating: F2
Path length: 5 mi
Path width: 55 yd
Injuries: 2 direct, 0 indirect
Property damage: $500,000
Crop damage: $50,000
Coordinates: 43.070, -92.450

Hail, Chickasaw

When: August 9, 4:45 PM CST
Where: Chickasaw County, Alta Vista
Measured: 1.75 in hail
Property damage: $50,000
Crop damage: $50,000
Coordinates: 43.060, -92.318 (the zone’s center; the record gives no point)

Thunderstorm Wind, Howard

When: August 9, 5:13 PM CST
Where: Howard County, Protivin
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $500
Coordinates: 43.357, -92.317 (the zone’s center; the record gives no point)

Hail, Chickasaw

When: August 9, 5:15 PM CST
Where: Chickasaw County, New Hampton
Measured: 1.75 in hail
Property damage: $500
Crop damage: $50,000
Coordinates: 43.060, -92.318 (the zone’s center; the record gives no point)

Thunderstorm Wind, Fayette

When: August 9, 5:30 PM CST
Where: Fayette County to Wadena
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $500
Coordinates: 42.863, -91.844 (the zone’s center; the record gives no point)

Hail, Winnebago

When: August 9, 6:05 PM CST
Where: Winnebago County, Lake Mills
Measured: 0.75 in hail
Property damage: $5,000
Crop damage: $50,000
Coordinates: 43.378, -93.734 (the zone’s center; the record gives no point)

Hail, Buchanan

When: August 9, 7:13 PM CST
Where: Buchanan County, Winthrop
Measured: 0.75 in hail
Property damage: $500
Crop damage: $50,000
Coordinates: 42.471, -91.838 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 7:41 PM CST
Where: Linn County, Walker
Measured: 56 kt (64 mph)
Property damage: $50,000
Crop damage: $500
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 7:41 PM CST
Where: Linn County, Cedar Rapids
Measured: 52 kt (60 mph)
Property damage: $50,000
Crop damage: $50
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 7:52 PM CST
Where: Linn County, Center Point
Measured: 62 kt (71 mph)
Property damage: $5,000
Crop damage: $5,000
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 7:52 PM CST
Where: Linn County, Troy Mills
Measured: 62 kt (71 mph)
Property damage: $5,000
Crop damage: $5,000
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 7:52 PM CST
Where: Linn County, Walker
Measured: 62 kt (71 mph)
Property damage: $5,000
Crop damage: $5,000
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 8:10 PM CST
Where: Linn County, Cedar Rapids
Measured: 57 kt (66 mph)
Property damage: $50,000
Crop damage: $50
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Thunderstorm Wind, Linn

When: August 9, 8:15 PM CST
Where: Linn County, Cedar Rapids
Measured: 60 kt (69 mph)
Property damage: $50,000
Crop damage: $5,000
Coordinates: 42.079, -91.599 (the zone’s center; the record gives no point)

Hail, Butler

When: August 9, 8:17 PM CST
Where: Butler County, Allison
Measured: 0.75 in hail
Property damage: $500
Crop damage: $50,000
Coordinates: 42.732, -92.790 (the zone’s center; the record gives no point)

Thunderstorm Wind, Tama

When: August 9, 8:35 PM CST
Where: Tama County, Chelsea
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $50
Coordinates: 42.080, -92.532 (the zone’s center; the record gives no point)

Thunderstorm Wind, Cedar

When: August 9, 9:05 PM CST
Where: Cedar County, West Branch
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $500
Coordinates: 41.772, -91.132 (the zone’s center; the record gives no point)

Thunderstorm Wind, Scott

When: August 9, 9:57 PM CST
Where: Scott County, Eldridge
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $500
Coordinates: 41.637, -90.623 (the zone’s center; the record gives no point)

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.
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

Every storm in Iowa in 1993 Every state in 1993 This day in weather history The tornado archive for Iowa, 1993 Warnings in Iowa, August 1993

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: 10321879, 10324134, 10324521, 10321501, 10321502, 10324522, 10321503, 10321781, 10323905, 10321977, 10322397, 10324422, 10322398, 10322399, 10322400, 10322430, 10322401, 10322070, 10324259, 10321485, 10323954.