Iowa, 1977Tornado and Hail in Iowa, July 16, 1977
July 16, 1977 · NWS NG · 4 events in 3 counties and zones
2 thunderstorm wind, 1 tornado, 1 hail, as filed by the National Weather Service.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- $250,000
- Crop damage
- None recorded
- Events
- 4
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
2 thunderstorm wind, 1 tornado, 1 hail. Local standard time, as filed.
Tornado, Bremer
- When
- July 16, 8:35 PM CST
- Where
- Bremer County
- Rating
- F2
- Path length
- 1.9 mi
- Path width
- 20 yd
- Property damage
- $250,000
- Coordinates
- 42.800, -92.480
Thunderstorm Wind, Bremer
- When
- July 16, 9:40 PM CST
- Where
- Bremer County
- Coordinates
- 42.670, -92.350
Thunderstorm Wind, Clayton
- When
- July 16, 9:55 PM CST
- Where
- Clayton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.670, -91.430
Hail, Jones
- When
- July 16, 10:45 PM CST
- Where
- Jones County
- Measured
- 1.75 in hail
- Coordinates
- 42.230, -91.200
- 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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Hail and Damaging Winds in Wisconsin, July 16, 197761 kt wind · 11 events
- Damaging Winds in Indiana, July 16, 197750 kt wind · 5 events
- Hail and Damaging Winds in Ohio, July 16, 19771.75 in hail · 5 events
- Hail and Damaging Wind in Minnesota, July 16, 19772.5 in hail · 5 events
- Damaging Winds in Illinois, July 16, 197752 kt wind · 3 events
- Hail in North Dakota, July 16, 19771.75 in hail · 2 events
- Damaging Winds in South Dakota, July 16, 197755 kt wind · 2 events
- Damaging Winds in Pennsylvania, July 16, 19772 events
- Damaging Wind in Alabama, July 16, 19771 event
- Damaging Wind in Tennessee, July 16, 19771 event
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: 10011556, 10011557, 10011558, 10011559.