Hail, Dallas
- When
- May 16, 11:28 AM CST
- Where
- Dallas County
- Measured
- 1.75 in hail
- Coordinates
- 41.830, -94.120
Tornadoes and Hail in Iowa, May 16, 1977
2 hail, 2 tornado, 2 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
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 6
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 hail, 2 tornado, 2 thunderstorm wind. Local standard time, as filed.
Tornado, Delaware
- When
- May 16, 3:00 PM CST
- Where
- Delaware County
- Path width
- 33 yd
- Coordinates
- 42.430, -91.270
Hail, Delaware
- When
- May 16, 3:30 PM CST
- Where
- Delaware County
- Measured
- 1.75 in hail
- Coordinates
- 42.350, -91.250
Thunderstorm Wind, Cedar
- When
- May 16, 5:00 PM CST
- Where
- Cedar County
- Coordinates
- 41.880, -91.050
Thunderstorm Wind, Clinton
- When
- May 16, 5:55 PM CST
- Where
- Clinton County
- Coordinates
- 41.970, -90.400
Tornado, Clinton
- When
- May 16, 6:15 PM CST
- Where
- Clinton County
- Path width
- 33 yd
- Coordinates
- 42.000, -90.400
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
- Tornadoes and Hail in Oklahoma, May 16, 1977
- Tornadoes and Hail in Texas, May 16, 1977
- Tornadoes and Hail in Nebraska, May 16, 1977
- Tornado and Hail in South Dakota, May 16, 1977
- Tornado and Hail in Missouri, May 16, 1977
- Hail and Damaging Winds in Kansas, May 16, 1977
- Hail in Minnesota, May 16, 1977
- Hail and Damaging Wind in Wisconsin, May 16, 1977
- Hail in New Mexico, May 16, 1977
- Damaging Wind in California, May 16, 1977
- Damaging Wind in Illinois, May 16, 1977
More
Every storm in Iowa in 1977Every state in 1977This day in weather historyThe tornado archive for Iowa, 1977
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: 10011376, 10011377, 10011378, 10011379, 10011380, 10011381.