Iowa, 1984

Tornado and Damaging Winds in Iowa, July 14, 1984

July 14, 1984 · NWS NG · 13 events in 9 counties and zones

12 thunderstorm wind, 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$250,000
Crop damage
None recorded
Events
13

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

12 thunderstorm wind, 1 tornado. Local standard time, as filed.

Thunderstorm Wind, Pocahontas

When
July 14, 12:55 PM CST
Where
Pocahontas County
Coordinates
42.580, -94.830

Thunderstorm Wind, Kossuth

When
July 14, 1:15 PM CST
Where
Kossuth County
Measured
69 kt (79 mph)
Coordinates
43.020, -94.200

Thunderstorm Wind, Kossuth

When
July 14, 1:30 PM CST
Where
Kossuth County
Measured
61 kt (70 mph)
Coordinates
43.180, -94.220

Tornado, Hancock

When
July 14, 1:45 PM CST
Where
Hancock County
Rating
F1
Path length
2 mi
Path width
20 yd
Property damage
$250,000
Coordinates
43.070, -93.750

Thunderstorm Wind, Kossuth

When
July 14, 1:45 PM CST
Where
Kossuth County
Coordinates
43.070, -94.230

Thunderstorm Wind, Kossuth

When
July 14, 2:00 PM CST
Where
Kossuth County
Coordinates
43.020, -94.200

Thunderstorm Wind, Kossuth

When
July 14, 2:15 PM CST
Where
Kossuth County
Coordinates
43.080, -94.000

Thunderstorm Wind, Keokuk

When
July 14, 2:50 PM CST
Where
Keokuk County
Coordinates
41.430, -92.170

Thunderstorm Wind, Hamilton

When
July 14, 2:50 PM CST
Where
Hamilton County
Measured
78 kt (90 mph)
Coordinates
42.430, -93.870

Thunderstorm Wind, Black Hawk

When
July 14, 4:20 PM CST
Where
Black Hawk County
Measured
56 kt (64 mph)
Coordinates
42.550, -92.400

Thunderstorm Wind, Polk

When
July 14, 5:00 PM CST
Where
Polk County
Measured
52 kt (60 mph)
Coordinates
41.670, -93.530

Thunderstorm Wind, Fayette

When
July 14, 5:09 PM CST
Where
Fayette County
Measured
52 kt (60 mph)
Coordinates
42.680, -91.900

Thunderstorm Wind, Monona

When
July 14, 5:30 PM CST
Where
Monona County
Coordinates
42.030, -96.100

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.
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 1984Every state in 1984This day in weather historyThe tornado archive for Iowa, 1984

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: 10012789, 10012790, 10012791, 10012792, 10012793, 10012794, 10012795, 10012796, 10012797, 10012798, 10012799, 10012800, 10013942.