Hail, Delaware
- When
- May 5, 4:00 PM CST
- Where
- Delaware County, Grove
- Measured
- 0.75 in hail
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.580, -94.770
Hail and Damaging Wind in Oklahoma, May 5, 1999
Summary of events for May 5 1999:The center of an upper-level disturbance, and its associated cold pool aloft, passed across southeast Oklahoma on the evening of May 5. The resulting instability caused isolated storms to develop over central Oklahoma that then moved mostly into southeast Oklahoma.
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
- $100
- Crop damage
- None recorded
- Events
- 3
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 TSA wrote it up.
Summary of events for May 5 1999:The center of an upper-level disturbance, and its associated cold pool aloft, passed across southeast Oklahoma on the evening of May 5. The resulting instability caused isolated storms to develop over central Oklahoma that then moved mostly into southeast Oklahoma. While these storms showed strong rotation on radar, there were only reports of marginally severe wind and hail.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 hail, 1 thunderstorm wind. Local standard time, as filed.
Hail, Haskell
- When
- May 5, 6:30 PM CST
- Where
- Haskell County, Kinta
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 35.120, -95.230
Thunderstorm Wind, Choctaw
- When
- May 5, 6:30 PM CST
- Where
- Choctaw County, Boswell
- Property damage
- $100
- Reported by
- GENERAL PUBLIC
- Coordinates
- 34.030, -95.870
Four-inch tree limbs were blown down in Boswell.
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes in Tennessee, May 5, 1999
- Flash Flooding and Flood in Tennessee, May 5 to 9, 1999
- Flash Flooding and Flooding in Tennessee, May 5, 1999
- Tornado in Indiana, May 5, 1999
- Tornadoes and Flash Flooding in Mississippi, May 5, 1999
- Tornado and Hail in North Carolina, May 5 to 6, 1999
- Flooding and Hail in Mississippi, May 5, 1999
- Tornado in Indiana, May 5, 1999
- Tornado and Hail in Georgia, May 5 to 6, 1999
- Tornado in Illinois, May 5, 1999
- Flash Flood and Hail in Louisiana, May 5, 1999
- Damaging Winds in Arkansas, May 5, 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: 5700518, 5700519, 5700520.