Hail, Palo Alto
- When
- July 8, 4:00 PM CST
- Where
- Palo Alto County
- Measured
- 1.75 in hail
- Coordinates
- 43.000, -94.530
Tornadoes and Hail in Iowa, July 8, 1986
13 thunderstorm wind, 3 hail, 2 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
- None recorded
- Crop damage
- None recorded
- Events
- 18
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
13 thunderstorm wind, 3 hail, 2 tornado. Local standard time, as filed.
Hail, Palo Alto
- When
- July 8, 5:00 PM CST
- Where
- Palo Alto County
- Measured
- 1.75 in hail
- Coordinates
- 43.000, -94.530
Hail, Black Hawk
- When
- July 8, 5:30 PM CST
- Where
- Black Hawk County
- Measured
- 1.75 in hail
- Coordinates
- 42.550, -92.270
Thunderstorm Wind, Shelby
- When
- July 8, 5:45 PM CST
- Where
- Shelby County
- Coordinates
- 41.650, -95.330
Thunderstorm Wind, Black Hawk
- When
- July 8, 5:45 PM CST
- Where
- Black Hawk County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.520, -92.450
Thunderstorm Wind, Clinton
- When
- July 8, 5:55 PM CST
- Where
- Clinton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.830, -90.200
Thunderstorm Wind, Shelby
- When
- July 8, 6:00 PM CST
- Where
- Shelby County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.650, -95.330
Thunderstorm Wind, Audubon
- When
- July 8, 6:15 PM CST
- Where
- Audubon County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.720, -94.930
Thunderstorm Wind, Audubon
- When
- July 8, 6:33 PM CST
- Where
- Audubon County
- Coordinates
- 41.720, -94.930
Thunderstorm Wind, Cedar
- When
- July 8, 7:00 PM CST
- Where
- Cedar County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.730, -91.080
Thunderstorm Wind, Poweshiek
- When
- July 8, 7:20 PM CST
- Where
- Poweshiek County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.780, -92.350
Thunderstorm Wind, Clinton
- When
- July 8, 7:30 PM CST
- Where
- Clinton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.820, -90.550
Thunderstorm Wind, Clinton
- When
- July 8, 7:30 PM CST
- Where
- Clinton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.830, -90.200
Thunderstorm Wind, Washington
- When
- July 8, 7:43 PM CST
- Where
- Washington County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.470, -91.830
Thunderstorm Wind, Scott
- When
- July 8, 7:43 PM CST
- Where
- Scott County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.700, -90.600
Tornado, Decatur
- When
- July 8, 8:15 PM CST
- Where
- Decatur County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 40.650, -93.980
Tornado, Decatur
- When
- July 8, 9:45 PM CST
- Where
- Decatur County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 40.800, -93.980
Thunderstorm Wind, Muscatine
- When
- July 8, 9:45 PM CST
- Where
- Muscatine County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.420, -91.050
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
- Hail and Damaging Winds in Pennsylvania, July 8, 1986
- Damaging Winds in North Carolina, July 8, 1986
- Damaging Winds in Ohio, July 8, 1986
- Damaging Winds in Indiana, July 8, 1986
- Hail and Damaging Wind in Texas, July 8, 1986
- Hail and Damaging Wind in South Carolina, July 8, 1986
- Damaging Winds in Illinois, July 8, 1986
- Damaging Wind in Minnesota, July 8, 1986
- Damaging Wind in Michigan, July 8, 1986
- Hail in Kansas, July 8, 1986
- Damaging Wind in Idaho, July 8, 1986
- Damaging Wind in Nebraska, July 8, 1986
More
Every storm in Iowa in 1986Every state in 1986This day in weather historyThe tornado archive for Iowa, 1986Warnings in Iowa, July 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: 10015105, 10015106, 10015107, 10015108, 10015109, 10015110, 10015111, 10015112, 10015113, 10015114, 10015115, 10015116, 10015117, 10015118, 10015119, 10015120, 10015121, 10015122.