Hail, Osage
- When
- May 20, 4:30 PM CST
- Where
- Osage County
- Measured
- 2.5 in hail
- Coordinates
- 38.780, -95.580
Tornadoes and Hail in Kansas, May 20, 1966
13 hail, 4 tornado, 3 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
- $500
- Crop damage
- None recorded
- Events
- 20
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 hail, 4 tornado, 3 thunderstorm wind. Local standard time, as filed.
Hail, Marion
- When
- May 20, 5:00 PM CST
- Where
- Marion County
- Measured
- 1.75 in hail
- Coordinates
- 38.200, -97.080
Hail, Marion
- When
- May 20, 5:00 PM CST
- Where
- Marion County
- Measured
- 1.75 in hail
- Coordinates
- 38.200, -97.280
Hail, Butler
- When
- May 20, 5:00 PM CST
- Where
- Butler County
- Measured
- 1.5 in hail
- Coordinates
- 37.880, -96.780
Thunderstorm Wind, Butler
- When
- May 20, 5:25 PM CST
- Where
- Butler County
- Coordinates
- 37.880, -96.580
Hail, Sedgwick
- When
- May 20, 5:30 PM CST
- Where
- Sedgwick County
- Measured
- 2 in hail
- Coordinates
- 37.880, -97.400
Tornado, Harvey
- When
- May 20, 5:45 PM CST
- Where
- Harvey County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 38.100, -97.400
Tornado, Harvey
- When
- May 20, 5:45 PM CST
- Where
- Harvey County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 38.100, -97.400
Tornado, McPherson
- When
- May 20, 5:45 PM CST
- Where
- McPherson County
- Rating
- F1
- Path width
- 33 yd
- Property damage
- $250
- Coordinates
- 38.200, -97.520
Hail, Harvey
- When
- May 20, 5:45 PM CST
- Where
- Harvey County
- Measured
- 1.5 in hail
- Coordinates
- 38.000, -97.400
Hail, Wyandotte
- When
- May 20, 6:00 PM CST
- Where
- Wyandotte County
- Measured
- 2.5 in hail
- Coordinates
- 39.080, -94.780
Hail, Sedgwick
- When
- May 20, 6:10 PM CST
- Where
- Sedgwick County
- Measured
- 1.75 in hail
- Coordinates
- 37.880, -97.680
Tornado, McPherson
- When
- May 20, 6:45 PM CST
- Where
- McPherson County
- Rating
- F0
- Path width
- 33 yd
- Property damage
- $250
- Coordinates
- 38.180, -97.500
Hail,
- When
- May 20, 7:30 PM CST
- Where
- County
- Measured
- 2.75 in hail
- Coordinates
- 39.080, -94.580
Hail, Johnson
- When
- May 20, 7:40 PM CST
- Where
- Johnson County
- Measured
- 0.75 in hail
- Coordinates
- 38.880, -94.680
Hail,
- When
- May 20, 7:45 PM CST
- Where
- County
- Measured
- 1.75 in hail
- Coordinates
- 39.000, -94.500
Thunderstorm Wind, Labette
- When
- May 20, 9:00 PM CST
- Where
- Labette County
- Coordinates
- 37.200, -95.280
Thunderstorm Wind, Greenwood
- When
- May 20, 9:00 PM CST
- Where
- Greenwood County
- Coordinates
- 37.780, -96.280
Hail, Sumner
- When
- May 20, 9:45 PM CST
- Where
- Sumner County
- Measured
- 2 in hail
- Coordinates
- 37.080, -97.400
Hail, Sumner
- When
- May 20, 9:45 PM CST
- Where
- Sumner County
- Measured
- 2 in hail
- Coordinates
- 37.000, -97.580
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
More
Every storm in Kansas in 1966Every state in 1966This day in weather historyThe tornado archive for Kansas, 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: 10025989, 10025990, 10025991, 10025992, 10025993, 10025994, 10025995, 10025996, 10025997, 10025998, 10025999, 10026000, 10026001, 10026002, 10026003, 10026004, 10026005, 10026006, 10026007, 10026008.