Hail, Adair
- When
- July 4, 4:54 PM CST
- Where
- Adair County
- Measured
- 1 in hail
- Coordinates
- 41.400, -94.570
Tornado and Hail in Iowa, July 4, 1990
5 thunderstorm wind, 1 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $3,000
- Crop damage
- None recorded
- Events
- 7
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 thunderstorm wind, 1 hail, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Warren
- When
- July 4, 6:43 PM CST
- Where
- Warren County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.480, -93.680
Thunderstorm Wind, Warren
- When
- July 4, 7:07 PM CST
- Where
- Warren County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.470, -93.420
Thunderstorm Wind, Warren
- When
- July 4, 7:26 PM CST
- Where
- Warren County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.370, -93.580
Thunderstorm Wind, Marion
- When
- July 4, 7:54 PM CST
- Where
- Marion County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.420, -92.930
Thunderstorm Wind, Mahaska
- When
- July 4, 8:20 PM CST
- Where
- Mahaska County
- Measured
- 50 kt (58 mph)
- Coordinates
- 41.470, -92.670
Tornado, Linn
- When
- July 4, 10:20 PM CST
- Where
- Linn County
- Rating
- F0
- Path length
- 0.3 mi
- Path width
- 20 yd
- Property damage
- $3,000
- Coordinates
- 42.000, -91.400
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
- Damaging Winds in New York, July 4, 1990
- Hail and Damaging Winds in Vermont, July 4, 1990
- Hail and Damaging Wind in Michigan, July 4, 1990
- Hail and Damaging Winds in Maine, July 4, 1990
- Hail and Damaging Winds in Pennsylvania, July 4, 1990
- Hail in Wisconsin, July 4, 1990
- Hail and Damaging Wind in Texas, July 4, 1990
- Hail in Kansas, July 4, 1990
- Damaging Wind in Florida, July 4, 1990
- Hail in Wyoming, July 4, 1990
More
Every storm in Iowa in 1990Every state in 1990This day in weather historyThe tornado archive for Iowa, 1990Warnings in Iowa, July 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: 10026286, 10026287, 10026288, 10026289, 10026290, 10026291, 10026292.