Hail, Alfalfa
- When
- May 22, 11:53 AM CST
- Where
- Alfalfa County, 1 mi N of Carmen
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 36.600, -98.450
Flash Flood and Hail in Oklahoma, May 22, 1999
Severe thunderstorms affected portions of northern Oklahoma during the afternoon and early evening of the 22nd, resulting in many reports of large hail and flooding across portions of eastern Kay County, where many roads were reported to be flooded.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
- 11
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.
What happened
The episode as NWS OUN wrote it up.
Severe thunderstorms affected portions of northern Oklahoma during the afternoon and early evening of the 22nd, resulting in many reports of large hail and flooding across portions of eastern Kay County, where many roads were reported to be flooded.
The radar
The Vance AFB radar (KVNX), 33 km away, was scanning. The volume nearest the first event began at 17:55 UTC.
Event by event
9 hail, 1 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Hail, Kay
- When
- May 22, 12:23 PM CST
- Where
- Kay County, 8 mi NE of Newkirk
- Measured
- 0.88 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 36.970, -96.950
Hail, Noble
- When
- May 22, 2:37 PM CST
- Where
- Noble County, 7 mi W of Red Rock
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 36.470, -97.300
Hail, Noble
- When
- May 22, 3:02 PM CST
- Where
- Noble County, Red Rock
- Measured
- 0.88 in hail
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.470, -97.170
Hail, Noble
- When
- May 22, 3:15 PM CST
- Where
- Noble County, Red Rock
- Measured
- 1 in hail
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.470, -97.170
Hail, Kay
- When
- May 22, 3:42 PM CST
- Where
- Kay County, Ponca City
- Measured
- 1.75 in hail
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.700, -97.080
Thunderstorm Wind, Kay
- When
- May 22, 3:50 PM CST
- Where
- Kay County, Ponca City
- Measured
- 52 kt (60 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.700, -97.080
Flash Flood, Kay
- When
- May 22, 4:10 PM CST
- Where
- Kay County, East Portion
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 36.818, -97.144 (the zone’s center; the record gives no point)
Hail, Payne
- When
- May 22, 4:55 PM CST
- Where
- Payne County, 3 mi SE of Glencoe
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 36.200, -96.900
Hail, Payne
- When
- May 22, 5:25 PM CST
- Where
- Payne County, Yale
- Measured
- 1.25 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 36.120, -96.700
Hail, Payne
- When
- May 22, 5:28 PM CST
- Where
- Payne County, 6 mi N of Cushing
- Measured
- 1 in hail
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.070, -96.770
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.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Kansas, May 22, 1999
- Flooding and Hail in Oklahoma, May 22, 1999
- Hail and Damaging Winds in Nebraska, May 22, 1999
- Hail in Kansas, May 22, 1999
- Flash Flood and Hail in Kansas, May 22, 1999
- Hail and Damaging Wind in Mississippi, May 22, 1999
- Hail and Damaging Winds in Kansas, May 22, 1999
- Damaging Winds in Virginia, May 22, 1999
- Hail in Nebraska, May 22, 1999
- Lightning Strike in Florida, May 22, 1999
- Hail in Georgia, May 22, 1999
- Hail and Damaging Winds in Kansas, May 22, 1999
More
Every storm in Oklahoma in 1999Every state in 1999This day in weather historyWarnings in Oklahoma, May 1999
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: 5706100, 5706099, 5706101, 5706102, 5706103, 5706104, 5706105, 5706106, 5706107, 5706108, 5706109.