Tornado, Plymouth
- When
- August 7, 4:14 PM CST
- Where
- Plymouth County
- Rating
- F2
- Path length
- 1.5 mi
- Path width
- 63 yd
- Property damage
- $250,000
- Coordinates
- 42.780, -96.170
Tornadoes and Damaging Winds in Iowa, August 7, 1991
4 tornado, 2 thunderstorm wind, 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $303,000
- Crop damage
- None recorded
- Events
- 6
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
4 tornado, 2 thunderstorm wind. Local standard time, as filed.
Tornado, Plymouth
- When
- August 7, 4:55 PM CST
- Where
- Plymouth County
- Rating
- F2
- Path length
- 3 mi
- Path width
- 80 yd
- Property damage
- $25,000
- Coordinates
- 42.820, -95.900
Tornado, Cherokee
- When
- August 7, 5:02 PM CST
- Where
- Cherokee County
- Rating
- F2
- Path length
- 5 mi
- Path width
- 80 yd
- Property damage
- $25,000
- Coordinates
- 42.820, -95.820
Tornado, Ida
- When
- August 7, 6:15 PM CST
- Where
- Ida County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 13 yd
- Property damage
- $3,000
- Coordinates
- 42.330, -95.350
Thunderstorm Wind, Humboldt
- When
- August 7, 7:16 PM CST
- Where
- Humboldt County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.800, -94.420
Thunderstorm Wind, Guthrie
- When
- August 7, 10:10 PM CST
- Where
- Guthrie County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.520, -94.530
What these are
- 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.
- 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
- Hail and Damaging Winds in North Carolina, August 7, 1991
- Damaging Winds in Kansas, August 7, 1991
- Damaging Winds in Mississippi, August 7, 1991
- Damaging Winds in Nebraska, August 7, 1991
- Hail and Damaging Wind in Missouri, August 7, 1991
- Hail and Damaging Wind in Tennessee, August 7, 1991
- Tornado and Hail in Wyoming, August 7, 1991
- Tornado in Texas, August 7, 1991
- Damaging Wind in South Carolina, August 7, 1991
- Damaging Wind in Louisiana, August 7, 1991
- Damaging Wind in Oklahoma, August 7, 1991
- Damaging Wind in Minnesota, August 7, 1991
More
Every storm in Iowa in 1991Every state in 1991This day in weather historyThe tornado archive for Iowa, 1991Warnings in Iowa, August 1991
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: 10026413, 10026414, 10026415, 10026416, 10026417, 10026418.