Oklahoma, 1999

Damaging Winds in Oklahoma, August 3, 1999

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

Isolated severe thunderstorms formed over portions of Caddo and Grady Counties during the afternoon of the 3rd. In addition to 2 severe wind gusts in Caddo County, roof damage was reported to several homes in the Southgate community, 4 miles south of Chickasha in Grady County.

Where it happened

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  • 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
$2,000
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 OUN wrote it up.

Isolated severe thunderstorms formed over portions of Caddo and Grady Counties during the afternoon of the 3rd. In addition to 2 severe wind gusts in Caddo County, roof damage was reported to several homes in the Southgate community, 4 miles south of Chickasha in Grady County.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

3 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Caddo

When
August 3, 4:20 PM CST
Where
Caddo County, 7 mi W of Hinton
Measured
53 kt (61 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
35.470, -98.470

Thunderstorm Wind, Caddo

When
August 3, 4:25 PM CST
Where
Caddo County, 7 mi W of Hinton
Measured
58 kt (67 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
35.470, -98.470

Thunderstorm Wind, Grady

When
August 3, 5:20 PM CST
Where
Grady County, 4 mi S of Chickasha
Property damage
$2,000
Reported by
EMERGENCY MANAGER
Coordinates
35.000, -97.950

What these are

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, August 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: 5716495, 5716496, 5716497.