Iowa, 1989

Hail and Damaging Winds in Iowa, July 18, 1989

July 18, 1989 · NWS DSM · 9 events in 6 counties and zones

5 thunderstorm wind, 4 hail, 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
9

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

5 thunderstorm wind, 4 hail. Local standard time, as filed.

Hail, Jasper

When
July 18, 12:46 AM CST
Where
Jasper County
Measured
1.75 in hail
Coordinates
41.700, -93.120

Hail, Muscatine

When
July 18, 3:00 PM CST
Where
Muscatine County
Measured
1.75 in hail
Coordinates
41.380, -91.350

Thunderstorm Wind, Keokuk

When
July 18, 3:00 PM CST
Where
Keokuk County
Measured
50 kt (58 mph)
Coordinates
41.350, -92.200

Hail, Clinton

When
July 18, 3:20 PM CST
Where
Clinton County
Measured
1 in hail
Coordinates
41.880, -90.580

Thunderstorm Wind, Clinton

When
July 18, 3:20 PM CST
Where
Clinton County
Measured
50 kt (58 mph)
Coordinates
41.670, -90.350

Hail, Clinton

When
July 18, 3:23 PM CST
Where
Clinton County
Measured
1.75 in hail
Coordinates
41.830, -90.200

Thunderstorm Wind, Muscatine

When
July 18, 3:25 PM CST
Where
Muscatine County
Coordinates
41.580, -91.270

Thunderstorm Wind, Linn

When
July 18, 3:30 PM CST
Where
Linn County
Measured
50 kt (58 mph)
Coordinates
41.920, -91.420

Thunderstorm Wind, Lee

When
July 18, 5:00 PM CST
Where
Lee County
Measured
50 kt (58 mph)
Coordinates
40.720, -91.450

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 1989Every state in 1989This day in weather historyWarnings in Iowa, July 1989

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: 10024838, 10024839, 10024840, 10025055, 10025056, 10025057, 10025058, 10025059, 10025060.