Oklahoma, 1999

Hail and Damaging Winds in Oklahoma, May 20 to 21, 1999

May 20 to 21, 1999 · NWS OUN · 23 events in 13 counties and zones

16 hail, 7 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
23

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.

The radar

The Norman radar (KTLX), 28 km away, was scanning. The volume nearest the first event began at 20:20 UTC.

Open the radar archive at this moment

Event by event

16 hail, 7 thunderstorm wind. Local standard time, as filed.

Hail, Oklahoma

When
May 20, 2:22 PM CST
Where
Oklahoma County, Oklahoma City
Measured
0.75 in hail
Reported by
BROADCAST MEDIA
Coordinates
35.480, -97.530

Hail was reported at a north Oklahoma City television station.

Hail, Harper

When
May 20, 5:55 PM CST to 6:00 PM CST
Where
Harper County, 7 mi WNW of Laverne
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
36.750, -100.020

Thunderstorm Wind, Ellis

When
May 20, 6:35 PM CST
Where
Ellis County, 3 mi N of Catesby
Measured
61 kt (70 mph)
Reported by
GENERAL PUBLIC
Coordinates
36.550, -99.970

Thunderstorm Wind, Ellis

When
May 20, 6:47 PM CST
Where
Ellis County, 9 mi NE of Catesby
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
36.600, -99.850

Thunderstorm Wind, Ellis

When
May 20, 7:10 PM CST
Where
Ellis County, 10 mi N of Gage
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
36.470, -99.750

Hail, Ellis

When
May 20, 7:14 PM CST
Where
Ellis County, 9 mi N of Gage
Measured
0.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
36.450, -99.750

Thunderstorm Wind, Woodward

When
May 20, 7:20 PM CST
Where
Woodward County, 4 mi NW of Tangier
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
36.450, -99.580

Hail, Jackson

When
May 20, 8:55 PM CST
Where
Jackson County, 9 mi W of Eldorado
Measured
0.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
34.470, -99.800

Hail, Jackson

When
May 20, 9:10 PM CST
Where
Jackson County, Eldorado
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
34.470, -99.650

Hail, Greer

When
May 20, 9:20 PM CST
Where
Greer County, Granite
Measured
0.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
34.970, -99.380

Hail, Alfalfa

When
May 20, 9:30 PM CST
Where
Alfalfa County, 9 mi NE of Amorita
Measured
1.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
37.020, -98.170

Hail, Kiowa

When
May 20, 9:35 PM CST
Where
Kiowa County, 2 mi S of Lone Wolf
Measured
0.88 in hail
Reported by
LAW ENFORCEMENT
Coordinates
34.950, -99.250

Hail, Grant

When
May 20, 9:45 PM CST to 9:55 PM CST
Where
Grant County, 10 mi W of Wakita
Measured
1 in hail
Reported by
GENERAL PUBLIC
Coordinates
36.880, -98.100

Hail, Alfalfa

When
May 20, 9:45 PM CST to 9:55 PM CST
Where
Alfalfa County, 10 mi E of Byron
Measured
1 in hail
Reported by
GENERAL PUBLIC
Coordinates
36.900, -98.100

Hail, Grant

When
May 20, 10:15 PM CST
Where
Grant County, 9 mi W of Wakita
Measured
0.88 in hail
Reported by
GENERAL PUBLIC
Coordinates
36.880, -98.080

Hail, Major

When
May 20, 10:43 PM CST
Where
Major County, Fairview
Measured
0.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
36.270, -98.480

Hail, Garfield

When
May 20, 11:30 PM CST
Where
Garfield County, 5 mi W of Bison
Measured
1 in hail
Reported by
GENERAL PUBLIC
Coordinates
36.200, -97.970

Thunderstorm Wind, Garfield

When
May 20, 11:30 PM CST
Where
Garfield County, 5 mi W of Bison
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
36.200, -97.970

Thunderstorm Wind, Payne

When
May 21, 12:45 AM CST
Where
Payne County, Stillwater
Measured
52 kt (60 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
36.120, -97.070

Hail, Payne

When
May 21, 12:47 AM CST
Where
Payne County, 4 mi W of Stillwater
Measured
0.88 in hail
Reported by
TRAINED SPOTTER
Coordinates
36.120, -97.130

Hail, Payne

When
May 21, 1:00 AM CST
Where
Payne County, 1 mi NE of Perkins
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
35.980, -97.020

Hail, Carter

When
May 21, 3:15 AM CST
Where
Carter County, Wilson
Measured
0.75 in hail
Reported by
GENERAL PUBLIC
Coordinates
34.170, -97.420

Thunderstorm Wind, Carter

When
May 21, 3:15 AM CST
Where
Carter County, Wilson
Measured
52 kt (60 mph)
Reported by
GENERAL PUBLIC
Coordinates
34.170, -97.420

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

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: 5706073, 5706074, 5706075, 5706076, 5706077, 5706078, 5706079, 5706080, 5706081, 5706093, 5706087, 5706082, 5706089, 5706090, 5706088, 5706083, 5706091, 5706092, 5706084, 5706085, 5706086, 5706094, 5706095.