Name: Hail and Damaging Wind in Iowa, July 13, 1994
Start: 1994-07-13T20:04
End: 1994-07-13T20:15
Location: Iowa

Where it happened

Every event with a place to put it; 2 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

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The toll

Deaths: 0
Injuries: 0
Property damage: $10,000
Crop damage: $10,000
Events: 2

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

1 hail, 1 thunderstorm wind. Local standard time, as filed.

Hail, Black Hawk

When: July 13, 8:04 PM CST
Where: Black Hawk County, S Waterloo
Measured: 1 in hail
Property damage: $5,000
Crop damage: $5,000
Coordinates: 42.470, -92.309 (the zone’s center; the record gives no point)

Thunderstorms formed along a stationary frontal boundary across Iowa. Although they were widespread, there was little in the way of severe weather associated with them. One inch diameter IOWA Cont'd hail was reported on the south side of Waterloo. High winds were also reported in the area. Northeast of La Porte City saw high winds. A grove of maple trees, 20 in all, was downed by the high winds. The average diameter of the trees was about one foot. The storms produced heavy rainfall. A small area of east central Tama County into west central Benton County received very heavy rainfall. Three to six inches of rain fell in a 3 hour period in that area. A check with officials in the county indicated there was no significant flooding from the rains however.

Thunderstorm Wind, Black Hawk

When: July 13, 8:15 PM CST
Where: Black Hawk County, La Porte City
Measured: 50 kt (58 mph)
Property damage: $5,000
Crop damage: $5,000
Coordinates: 42.470, -92.309 (the zone’s center; the record gives no point)

Thunderstorms formed along a stationary frontal boundary across Iowa. Although they were widespread, there was little in the way of severe weather associated with them. One inch diameter IOWA Cont'd hail was reported on the south side of Waterloo. High winds were also reported in the area. Northeast of La Porte City saw high winds. A grove of maple trees, 20 in all, was downed by the high winds. The average diameter of the trees was about one foot. The storms produced heavy rainfall. A small area of east central Tama County into west central Benton County received very heavy rainfall. Three to six inches of rain fell in a 3 hour period in that area. A check with officials in the county indicated there was no significant flooding from the rains however.

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.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Iowa in 1994 Every state in 1994 This day in weather history Warnings in Iowa, July 1994

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: 10321413, 10321414.