Iowa, 1987

Tornadoes and Hail in Iowa, July 14, 1987

July 14, 1987 · NWS DSM · 9 events in 8 counties and zones

5 hail, 2 thunderstorm wind, 2 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
$3,000
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 hail, 2 thunderstorm wind, 2 tornado. Local standard time, as filed.

Hail, Worth

When
July 14, 3:40 PM CST
Where
Worth County
Measured
1.75 in hail
Coordinates
43.320, -93.070

Hail, Mitchell

When
July 14, 3:40 PM CST
Where
Mitchell County
Measured
1.75 in hail
Coordinates
43.320, -92.880

Hail, Kossuth

When
July 14, 4:50 PM CST
Where
Kossuth County
Measured
1 in hail
Coordinates
43.070, -94.420

Hail, Kossuth

When
July 14, 4:55 PM CST
Where
Kossuth County
Measured
1 in hail
Coordinates
43.000, -94.230

Thunderstorm Wind, Ida

When
July 14, 5:25 PM CST
Where
Ida County
Coordinates
42.350, -95.470

Hail, Crawford

When
July 14, 6:20 PM CST
Where
Crawford County
Measured
1.75 in hail
Coordinates
42.070, -95.600

Tornado, Grundy

When
July 14, 7:00 PM CST
Where
Grundy County
Rating
F1
Path length
0.1 mi
Path width
13 yd
Property damage
$250
Coordinates
42.480, -92.770

Tornado, Black Hawk

When
July 14, 8:00 PM CST
Where
Black Hawk County
Rating
F0
Path length
0.5 mi
Path width
20 yd
Property damage
$3,000
Coordinates
42.400, -92.080

Thunderstorm Wind, Adams

When
July 14, 9:10 PM CST
Where
Adams County
Measured
70 kt (81 mph)
Coordinates
41.000, -94.700

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 1987Every state in 1987This day in weather historyThe tornado archive for Iowa, 1987Warnings in Iowa, July 1987

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: 10015482, 10015483, 10015484, 10015485, 10015486, 10015487, 10015488, 10015489, 10015490.