Thunderstorm Wind, Woodbury
- When
- July 30, 12:22 AM CST
- Where
- Woodbury County
- Measured
- 59 kt (68 mph)
- Coordinates
- 42.400, -96.380
Tornadoes and Damaging Winds in Iowa, July 30, 1979
8 thunderstorm wind, 4 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
- $775,000
- Crop damage
- None recorded
- Events
- 12
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
8 thunderstorm wind, 4 tornado. Local standard time, as filed.
Tornado, Ida
- When
- July 30, 2:00 AM CST
- Where
- Ida County
- Rating
- F1
- Path length
- 17.3 mi
- Path width
- 100 yd
- Property damage
- $250,000
- Coordinates
- 42.280, -95.650
Tornado, Crawford
- When
- July 30, 2:22 AM CST
- Where
- Crawford County
- Rating
- F1
- Path length
- 5.7 mi
- Path width
- 100 yd
- Property damage
- $250,000
- Coordinates
- 42.220, -95.320
Thunderstorm Wind, Story
- When
- July 30, 2:45 AM CST
- Where
- Story County
- Coordinates
- 42.030, -93.620
Thunderstorm Wind, Polk
- When
- July 30, 2:50 AM CST
- Where
- Polk County
- Coordinates
- 41.500, -93.620
Tornado, Polk
- When
- July 30, 3:15 AM CST
- Where
- Polk County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 30 yd
- Property damage
- $25,000
- Coordinates
- 41.780, -93.720
Thunderstorm Wind, Polk
- When
- July 30, 3:15 AM CST
- Where
- Polk County
- Coordinates
- 41.670, -93.530
Tornado, Muscatine
- When
- July 30, 4:00 AM CST
- Where
- Muscatine County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 30 yd
- Property damage
- $250,000
- Coordinates
- 41.400, -92.650
Thunderstorm Wind, Wapello
- When
- July 30, 4:10 AM CST
- Where
- Wapello County
- Measured
- 55 kt (63 mph)
- Coordinates
- 41.100, -92.450
Thunderstorm Wind, Poweshiek
- When
- July 30, 4:15 AM CST
- Where
- Poweshiek County
- Coordinates
- 41.730, -92.450
Thunderstorm Wind, Tama
- When
- July 30, 4:15 AM CST
- Where
- Tama County
- Coordinates
- 42.000, -92.580
Thunderstorm Wind, Dubuque
- When
- July 30, 5:12 AM CST
- Where
- Dubuque County
- Coordinates
- 42.400, -90.720
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
- Tornado and Damaging Wind in Ohio, July 30, 1979
- Damaging Winds in Missouri, July 30, 1979
- Hail and Damaging Winds in Illinois, July 30, 1979
- Hail and Damaging Winds in Colorado, July 30, 1979
- Damaging Winds in Nebraska, July 30, 1979
- Tornadoes and Hail in Wyoming, July 30, 1979
- Hail and Damaging Winds in Kansas, July 30, 1979
- Damaging Winds in Oklahoma, July 30, 1979
- Damaging Wind in Wisconsin, July 30, 1979
- Hail in Indiana, July 30, 1979
- Hail in Texas, July 30, 1979
More
Every storm in Iowa in 1979Every state in 1979This day in weather historyThe tornado archive for Iowa, 1979
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: 10014220, 10014221, 10014222, 10014223, 10013086, 10013087, 10013088, 10013089, 10013090, 10013876, 10013877, 10013878.