Thunderstorm Wind, Cedar
- When
- July 31, 5:29 PM CST
- Where
- Cedar County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.580, -91.280
Tornado and Damaging Winds in Iowa, July 31, 1970
6 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $25,000
- 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
6 thunderstorm wind, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Cedar
- When
- July 31, 5:50 PM CST
- Where
- Cedar County
- Measured
- 63 kt (72 mph)
- Coordinates
- 41.700, -90.900
Tornado, Dubuque
- When
- July 31, 6:00 PM CST
- Where
- Dubuque County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 200 yd
- Property damage
- $25,000
- Coordinates
- 42.430, -90.700
Thunderstorm Wind, Scott
- When
- July 31, 6:00 PM CST
- Where
- Scott County
- Coordinates
- 41.580, -90.580
Thunderstorm Wind, Scott
- When
- July 31, 6:08 PM CST
- Where
- Scott County
- Measured
- 61 kt (70 mph)
- Coordinates
- 41.700, -90.400
Thunderstorm Wind,
- When
- July 31, 6:29 PM CST
- Where
- County
- Measured
- 51 kt (59 mph)
- Coordinates
- 41.580, -90.280
Thunderstorm Wind,
- When
- July 31, 7:25 PM CST
- Where
- County
- Coordinates
- 40.380, -91.400
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 in Pennsylvania, July 31, 1970
- Hail and Damaging Winds in Kansas, July 31, 1970
- Damaging Winds in Illinois, July 31, 1970
- Hail and Damaging Winds in Wisconsin, July 31, 1970
- Damaging Winds in Missouri, July 31, 1970
- Damaging Winds in Indiana, July 31, 1970
- Hail in Minnesota, July 31, 1970
- Tornado in Colorado, July 31, 1970
- Damaging Wind in Mississippi, July 31, 1970
More
Every storm in Iowa in 1970Every state in 1970This day in weather historyThe tornado archive for Iowa, 1970
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: 10011312, 10011313, 10011314, 10011315, 10011316, 10011317, 10011318.