Thunderstorm Wind, Carroll
- When
- May 8, 1:00 PM CST
- Where
- Carroll County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.070, -94.880
Tornadoes and Damaging Winds in Iowa, May 8, 1986
21 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
- $75,000
- Crop damage
- None recorded
- Events
- 25
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
21 thunderstorm wind, 4 tornado. Local standard time, as filed.
Thunderstorm Wind, Appanoose
- When
- May 8, 2:25 PM CST
- Where
- Appanoose County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.730, -92.870
Thunderstorm Wind, Decatur
- When
- May 8, 2:30 PM CST
- Where
- Decatur County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.820, -93.600
Tornado, Monroe
- When
- May 8, 2:50 PM CST
- Where
- Monroe County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 13 yd
- Property damage
- $25,000
- Coordinates
- 41.000, -92.820
Thunderstorm Wind, Lucas
- When
- May 8, 3:01 PM CST
- Where
- Lucas County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.980, -93.200
Thunderstorm Wind, Lyon
- When
- May 8, 3:15 PM CST
- Where
- Lyon County
- Coordinates
- 43.350, -96.480
Thunderstorm Wind, Wayne
- When
- May 8, 3:22 PM CST
- Where
- Wayne County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.870, -93.130
Thunderstorm Wind, Warren
- When
- May 8, 3:22 PM CST
- Where
- Warren County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.200, -93.380
Thunderstorm Wind, Warren
- When
- May 8, 3:35 PM CST
- Where
- Warren County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.500, -93.500
Thunderstorm Wind, Marion
- When
- May 8, 3:35 PM CST
- Where
- Marion County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.320, -93.100
Tornado, Polk
- When
- May 8, 3:38 PM CST
- Where
- Polk County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 10 yd
- Coordinates
- 41.630, -93.430
Thunderstorm Wind, Marion
- When
- May 8, 3:40 PM CST
- Where
- Marion County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.420, -92.930
Tornado, Jasper
- When
- May 8, 4:00 PM CST
- Where
- Jasper County
- Rating
- F1
- Path length
- 0.1 mi
- Path width
- 20 yd
- Property damage
- $25,000
- Coordinates
- 41.580, -93.020
Thunderstorm Wind, Polk
- When
- May 8, 4:00 PM CST
- Where
- Polk County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.600, -93.620
Tornado, Plymouth
- When
- May 8, 4:05 PM CST
- Where
- Plymouth County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 10 yd
- Property damage
- $25,000
- Coordinates
- 42.920, -96.050
Thunderstorm Wind, Story
- When
- May 8, 4:15 PM CST
- Where
- Story County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.030, -93.620
Thunderstorm Wind, Polk
- When
- May 8, 4:15 PM CST
- Where
- Polk County
- Measured
- 65 kt (75 mph)
- Coordinates
- 41.600, -93.620
Thunderstorm Wind, Sioux
- When
- May 8, 4:23 PM CST
- Where
- Sioux County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.080, -96.180
Thunderstorm Wind, Marshall
- When
- May 8, 4:25 PM CST
- Where
- Marshall County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.200, -93.000
Thunderstorm Wind, Hardin
- When
- May 8, 4:35 PM CST
- Where
- Hardin County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.370, -93.100
Thunderstorm Wind, Henry
- When
- May 8, 4:45 PM CST
- Where
- Henry County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.970, -91.550
Thunderstorm Wind, Palo Alto
- When
- May 8, 4:55 PM CST
- Where
- Palo Alto County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.950, -94.870
Thunderstorm Wind, Webster
- When
- May 8, 5:12 PM CST
- Where
- Webster County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.500, -94.180
Thunderstorm Wind, Emmet
- When
- May 8, 6:09 PM CST
- Where
- Emmet County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.420, -94.850
Thunderstorm Wind, Des Moines
- When
- May 8, 6:33 PM CST
- Where
- Des Moines County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.000, -91.150
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 Oklahoma, May 8, 1986
- Tornadoes and Hail in Kansas, May 8, 1986
- Tornado and Hail in Texas, May 8, 1986
- Hail and Damaging Winds in Missouri, May 8, 1986
- Damaging Winds in Nebraska, May 8, 1986
- Tornadoes and Damaging Wind in South Dakota, May 8, 1986
- Damaging Wind in Minnesota, May 8, 1986
- Hail in West Virginia, May 8, 1986
- Hail in Illinois, May 8, 1986
More
Every storm in Iowa in 1986Every state in 1986This day in weather historyThe tornado archive for Iowa, 1986Warnings in Iowa, May 1986
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: 10012857, 10012858, 10012859, 10012860, 10012861, 10012862, 10012863, 10012864, 10012865, 10012866, 10012867, 10012868, 10012869, 10012870, 10012871, 10012872, 10012873, 10012874, 10013731, 10013732, 10013733, 10013947, 10013948, 10013949, 10013950.