Iowa, 1990

Tornado and Hail in Iowa, June 27, 1990

June 27, 1990 · NWS ALO · 11 events in 8 counties and zones

7 thunderstorm wind, 3 hail, 1 tornado, 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
$25,000
Crop damage
None recorded
Events
11

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

7 thunderstorm wind, 3 hail, 1 tornado. Local standard time, as filed.

Hail, Mitchell

When
June 27, 1:40 PM CST
Where
Mitchell County
Measured
3 in hail
Coordinates
43.280, -92.820

Thunderstorm Wind, Linn

When
June 27, 2:15 PM CST
Where
Linn County
Measured
50 kt (58 mph)
Coordinates
42.000, -91.650

Hail, Linn

When
June 27, 2:34 PM CST
Where
Linn County
Measured
1.75 in hail
Coordinates
42.070, -91.780

Thunderstorm Wind, Butler

When
June 27, 3:00 PM CST
Where
Butler County
Measured
50 kt (58 mph)
Coordinates
42.780, -92.670

Thunderstorm Wind, Bremer

When
June 27, 3:15 PM CST
Where
Bremer County
Coordinates
42.650, -92.170

Hail, Black Hawk

When
June 27, 3:30 PM CST
Where
Black Hawk County
Measured
1.75 in hail
Coordinates
42.500, -92.270

Thunderstorm Wind, Bremer

When
June 27, 3:30 PM CST
Where
Bremer County
Measured
65 kt (75 mph)
Coordinates
42.800, -92.250

Tornado, Black Hawk

When
June 27, 3:45 PM CST
Where
Black Hawk County
Rating
F0
Path length
0.2 mi
Path width
27 yd
Property damage
$25,000
Coordinates
42.450, -92.220

Thunderstorm Wind, Buchanan

When
June 27, 4:15 PM CST
Where
Buchanan County
Measured
50 kt (58 mph)
Coordinates
42.470, -91.850

Thunderstorm Wind, Lyon

When
June 27, 11:15 PM CST
Where
Lyon County
Measured
70 kt (81 mph)
Coordinates
43.320, -96.400

Thunderstorm Wind, Osceola

When
June 27, 11:45 PM CST
Where
Osceola County
Measured
50 kt (58 mph)
Coordinates
43.420, -95.550

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.
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

More

Every storm in Iowa in 1990Every state in 1990This day in weather historyThe tornado archive for Iowa, 1990Warnings in Iowa, June 1990

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: 10025174, 10025175, 10025176, 10025177, 10025178, 10025179, 10025180, 10025181, 10025182, 10025183, 10025184.