Tornado, Keokuk
- When
- August 19, 4:00 PM CST
- Where
- Keokuk County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 20 yd
- Property damage
- $25,000
- Coordinates
- 41.430, -92.170
Tornadoes and Damaging Winds in Iowa, August 19, 1990
2 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
- $275,000
- Crop damage
- None recorded
- Events
- 4
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
2 tornado, 2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Clinton
- When
- August 19, 4:00 PM CST
- Where
- Clinton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.020, -90.680
Thunderstorm Wind, Clinton
- When
- August 19, 4:20 PM CST
- Where
- Clinton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.970, -90.480
Tornado, Scott
- When
- August 19, 7:35 PM CST
- Where
- Scott County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 73 yd
- Property damage
- $250,000
- Coordinates
- 41.530, -90.520
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
- Damaging Winds in Alabama, August 19, 1990
- Hail and Damaging Winds in Ohio, August 19, 1990
- Hail in Colorado, August 19, 1990
- Hail and Damaging Winds in Illinois, August 19, 1990
- Damaging Winds in Indiana, August 19, 1990
- Damaging Winds in West Virginia, August 19, 1990
- Damaging Winds in New Jersey, August 19, 1990
- Tornado in Florida, August 19, 1990
- Damaging Wind in Pennsylvania, August 19, 1990
- Hail in Oklahoma, August 19, 1990
More
Every storm in Iowa in 1990Every state in 1990This day in weather historyThe tornado archive for Iowa, 1990Warnings in Iowa, August 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: 10027398, 10027399, 10027400, 10027401.