Oklahoma, 1999

Flash Flood and Hail in Oklahoma, April 3, 1999

April 3, 1999 · NWS OUN · 7 events in 2 counties and zones

Numerous thunderstorms occurred across portions of Bryan and Atoka Counties during the early morning of the 3rd. In addition to large hail, between 4 and 5 inches of rain fell across western Bryan County.

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

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The toll

Deaths
0
Injuries
0
Property damage
$50,000
Crop damage
None recorded
Events
7

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.

Numerous thunderstorms occurred across portions of Bryan and Atoka Counties during the early morning of the 3rd. In addition to large hail, between 4 and 5 inches of rain fell across western Bryan County. Two homes in Durant and a nursing home in Colbert were flooded. The southbound lane of Highway 69/75 between the Choctaw Travel Plaza and Calera was also closed due to high water.

The radar

The Norman radar (KTLX), 166 km away, was scanning. The volume nearest the first event began at 11:48 UTC.

Open the radar archive at this moment

Event by event

6 hail, 1 flash flood. Local standard time, as filed.

Hail, Bryan

When
April 3, 6:00 AM CST
Where
Bryan County, 4 mi W of Durant
Measured
0.88 in hail
Reported by
STORM CHASER
Coordinates
34.000, -96.450

Hail, Bryan

When
April 3, 6:50 AM CST
Where
Bryan County, Calera
Measured
1 in hail
Reported by
STORM CHASER
Coordinates
33.930, -96.430

Hail, Bryan

When
April 3, 7:05 AM CST
Where
Bryan County, Colbert
Measured
1.25 in hail
Reported by
STORM CHASER
Coordinates
33.850, -96.500

Hail, Bryan

When
April 3, 7:13 AM CST
Where
Bryan County, Durant
Measured
1.75 in hail
Reported by
STORM CHASER
Coordinates
34.000, -96.380

Hail, Bryan

When
April 3, 7:13 AM CST
Where
Bryan County, Calera
Measured
1.75 in hail
Reported by
STORM CHASER
Coordinates
33.930, -96.430

Hail, Atoka

When
April 3, 9:10 AM CST
Where
Atoka County, Caney
Measured
0.75 in hail
Reported by
STORM CHASER
Coordinates
34.230, -96.220

Flash Flood, Bryan

When
April 3, 10:00 AM CST to 12:00 PM CST
Where
Bryan County, West Portion
Property damage
$50,000
Reported by
LAW ENFORCEMENT
Coordinates
33.962, -96.260 (the zone’s center; the record gives no point)

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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

More

Every storm in Oklahoma in 1999Every state in 1999This day in weather historyWarnings in Oklahoma, April 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: 5695535, 5695536, 5695537, 5695538, 5695539, 5695534, 5695540.