Thunderstorm Wind, Jones
- When
- May 20, 5:00 PM CST
- Where
- Jones County
- Coordinates
- 42.080, -91.320
Tornado and Damaging Winds in Iowa, May 20, 1975
7 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
- $3,000
- Crop damage
- None recorded
- Events
- 8
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
7 thunderstorm wind, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Des Moines
- When
- May 20, 5:00 PM CST
- Where
- Des Moines County
- Coordinates
- 40.820, -91.080
Thunderstorm Wind, Lee
- When
- May 20, 5:05 PM CST
- Where
- Lee County
- Coordinates
- 40.630, -91.320
Thunderstorm Wind, Washington
- When
- May 20, 5:10 PM CST
- Where
- Washington County
- Coordinates
- 41.300, -91.700
Thunderstorm Wind, Henry
- When
- May 20, 5:15 PM CST
- Where
- Henry County
- Coordinates
- 41.070, -91.400
Tornado, Lyon
- When
- May 20, 5:45 PM CST
- Where
- Lyon County
- Rating
- F1
- Path width
- 33 yd
- Property damage
- $3,000
- Coordinates
- 43.400, -96.180
Thunderstorm Wind, Scott
- When
- May 20, 6:00 PM CST
- Where
- Scott County
- Coordinates
- 41.530, -90.520
Thunderstorm Wind, Scott
- When
- May 20, 6:00 PM CST
- Where
- Scott County
- Coordinates
- 41.530, -90.580
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
- Tornadoes and Hail in Illinois, May 20, 1975
- Tornadoes and Hail in Michigan, May 20, 1975
- Tornado and Hail in Arkansas, May 20, 1975
- Hail and Damaging Winds in Missouri, May 20, 1975
- Tornado and Hail in Texas, May 20, 1975
- Hail and Damaging Winds in Minnesota, May 20, 1975
- Hail and Damaging Wind in Maine, May 20, 1975
- Hail and Damaging Wind in Indiana, May 20, 1975
- Hail in Oklahoma, May 20, 1975
More
Every storm in Iowa in 1975Every state in 1975This day in weather historyThe tornado archive for Iowa, 1975
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: 10011481, 10011482, 10011483, 10011484, 10011485, 10011486, 10011487, 10011488.