Hail, Polk
- When
- April 19, 5:00 PM CST
- Where
- Polk County
- Measured
- 1 in hail
- Coordinates
- 41.500, -93.680
Tornadoes and Hail in Iowa, April 19, 1966
6 tornado, 3 hail, 1 thunderstorm wind, 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
- 4
- Property damage
- $1.1 million
- Crop damage
- None recorded
- Events
- 10
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 tornado, 3 hail, 1 thunderstorm wind. Local standard time, as filed.
Tornado, Grundy
- When
- April 19, 6:00 PM CST
- Where
- Grundy County
- Rating
- F2
- Path length
- 2.3 mi
- Path width
- 200 yd
- Property damage
- $25,000
- Coordinates
- 42.450, -92.600
Tornado, Poweshiek
- When
- April 19, 6:00 PM CST
- Where
- Poweshiek County
- Rating
- F3
- Path width
- 400 yd
- Property damage
- $250,000
- Coordinates
- 41.850, -92.720
Tornado, Tama
- When
- April 19, 6:03 PM CST
- Where
- Tama County
- Rating
- F3
- Path length
- 24.1 mi
- Path width
- 400 yd
- Injuries
- 4 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 41.870, -92.700
Hail, Wapello
- When
- April 19, 6:14 PM CST
- Where
- Wapello County
- Measured
- 0.75 in hail
- Coordinates
- 41.080, -92.400
Hail, Tama
- When
- April 19, 6:15 PM CST
- Where
- Tama County
- Measured
- 1.5 in hail
- Coordinates
- 42.000, -92.580
Tornado, Benton
- When
- April 19, 6:42 PM CST
- Where
- Benton County
- Rating
- F3
- Path length
- 3 mi
- Path width
- 400 yd
- Property damage
- $250,000
- Coordinates
- 42.030, -92.280
Tornado, Bremer
- When
- April 19, 7:20 PM CST
- Where
- Bremer County
- Rating
- F2
- Path length
- 4.6 mi
- Path width
- 250 yd
- Property damage
- $25,000
- Coordinates
- 42.850, -92.120
Thunderstorm Wind, Fayette
- When
- April 19, 8:00 PM CST
- Where
- Fayette County
- Coordinates
- 42.700, -91.900
Tornado, Scott
- When
- April 19, 9:30 PM CST
- Where
- Scott County
- Rating
- F3
- Path length
- 2 mi
- Path width
- 100 yd
- Property damage
- $250,000
- Coordinates
- 41.500, -90.500
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Kansas, April 19, 1966
- Tornado and Hail in Wisconsin, April 19, 1966
- Tornadoes and Damaging Wind in Illinois, April 19, 1966
- Tornadoes and Hail in Texas, April 19, 1966
- Tornadoes and Hail in Missouri, April 19, 1966
- Hail and Damaging Winds in Oklahoma, April 19, 1966
- Hail in Arkansas, April 19, 1966
More
Every storm in Iowa in 1966Every state in 1966This day in weather historyThe tornado archive for Iowa, 1966
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: 10015336, 10015337, 10015338, 10015339, 10015340, 10015341, 10015342, 10015343, 10015344, 10015345.