Hail, Clay
- When
- May 21, 3:40 PM CST
- Where
- Clay County
- Measured
- 1.75 in hail
- Coordinates
- 39.400, -94.580
Tornadoes and Hail in Missouri, May 21, 1977
2 hail, 2 thunderstorm wind, 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
- $50,000
- 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 thunderstorm wind, 2 tornado. Local standard time, as filed.
Thunderstorm Wind, Jackson
- When
- May 21, 4:25 PM CST
- Where
- Jackson County
- Measured
- 56 kt (64 mph)
- Coordinates
- 39.120, -94.600
Tornado, Harrison
- When
- May 21, 4:45 PM CST
- Where
- Harrison County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 40.270, -94.170
Hail, Taney
- When
- May 21, 5:10 PM CST
- Where
- Taney County
- Measured
- 1.5 in hail
- Coordinates
- 36.650, -93.220
Tornado, Grundy
- When
- May 21, 7:00 PM CST
- Where
- Grundy County
- Rating
- F1
- Path length
- 3.8 mi
- Path width
- 150 yd
- Property damage
- $25,000
- Coordinates
- 40.120, -93.620
Thunderstorm Wind, Greene
- When
- May 21, 8:30 PM CST
- Where
- Greene County
- Coordinates
- 37.200, -93.300
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
- Tornadoes and Damaging Wind in Minnesota, May 21, 1977
- Tornadoes and Damaging Winds in Oklahoma, May 21, 1977
- Tornadoes in South Dakota, May 21, 1977
- Hail and Damaging Winds in Iowa, May 21, 1977
- Tornadoes and Damaging Wind in Nebraska, May 21, 1977
- Hail and Damaging Wind in Kansas, May 21, 1977
- Tornado and Hail in Indiana, May 21, 1977
- Damaging Winds in Illinois, May 21, 1977
- Hail and Damaging Wind in Wisconsin, May 21, 1977
- Hail in Kentucky, May 21, 1977
More
Every storm in Missouri in 1977Every state in 1977This day in weather historyThe tornado archive for Missouri, 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: 10055919, 10059570, 10059571, 10059572, 10059573, 10059574.