Oklahoma, 1999

Damaging Wind and Lightning Strikes in Oklahoma, August 10, 1999

August 10, 1999 · NWS OUN · 3 events in 3 counties and zones

Thunderstorms which formed over portions of central Oklahoma during the afternoon of the 10th, produced severe winds which downed several trees and power lines in Duncan in Stephens County. Lightning also struck a transformer at the Okeene Nursing Center in Okeene in Blaine County, burning an electrical meter and inflicting minor damage to an interior wall, and a 34-year-old man was injured when…

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
1
Property damage
$6,000
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.

Thunderstorms which formed over portions of central Oklahoma during the afternoon of the 10th, produced severe winds which downed several trees and power lines in Duncan in Stephens County. Lightning also struck a transformer at the Okeene Nursing Center in Okeene in Blaine County, burning an electrical meter and inflicting minor damage to an interior wall, and a 34-year-old man was injured when he was struck by lightning in a field on the campus of the University of Central Oklahoma in Edmond in Oklahoma County.

The radar

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

Open the radar archive at this moment

Event by event

2 lightning, 1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Stephens

When
August 10, 5:00 PM CST
Where
Stephens County, Duncan
Property damage
$500
Reported by
NEWSPAPER
Coordinates
34.520, -97.950

Lightning, Blaine

When
August 10, 5:30 PM CST
Where
Blaine County, Okeene
Property damage
$5,000
Reported by
NEWSPAPER
Coordinates
35.875, -98.433 (the zone’s center; the record gives no point)

Lightning, Oklahoma

When
August 10, 5:45 PM CST
Where
Oklahoma County, Edmond
Injuries
1 direct, 0 indirect
Reported by
NEWSPAPER
Coordinates
35.552, -97.407 (the zone’s center; the record gives no point)

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.
Lightning
A lightning strike that killed, injured or caused damage.

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: 5716504, 5716505, 5716503.