Thunderstorm Wind, Grant
- When
- July 1, 6:00 AM CST
- Where
- Grant County, 1 mi SW of Medford
- Measured
- 50 kt (58 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 36.800, -97.750
Damaging Winds in Oklahoma, July 1, 1999
Severe thunderstorms formed over portions of Kay and Grant Counties during the early morning of the 1st. Several large trees were blown down and a barn was destroyed at a farm just to the southwest of Tonkawa in Kay County, while in Ponca City, also in Kay County, a large tree limb was blown down, falling onto a nearby building, causing extensive damage, and another large tree limb fell onto…
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
- $20,000
- Crop damage
- None recorded
- Events
- 6
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.
Severe thunderstorms formed over portions of Kay and Grant Counties during the early morning of the 1st. Several large trees were blown down and a barn was destroyed at a farm just to the southwest of Tonkawa in Kay County, while in Ponca City, also in Kay County, a large tree limb was blown down, falling onto a nearby building, causing extensive damage, and another large tree limb fell onto power lines and an automobile.
The radar
The national radar mosaic for the moment the first event began.
Event by event
6 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Grant
- When
- July 1, 6:05 AM CST
- Where
- Grant County, 1 mi SW of Medford
- Measured
- 61 kt (70 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 36.800, -97.750
Thunderstorm Wind, Kay
- When
- July 1, 6:20 AM CST
- Where
- Kay County, Braman
- Measured
- 61 kt (70 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.930, -97.330
Thunderstorm Wind, Kay
- When
- July 1, 6:30 AM CST
- Where
- Kay County, 2 mi W of Blackwell
- Measured
- 69 kt (79 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 36.800, -97.320
Thunderstorm Wind, Kay
- When
- July 1, 6:30 AM CST
- Where
- Kay County, Tonkawa
- Property damage
- $5,000
- Reported by
- NEWSPAPER
- Coordinates
- 36.680, -97.300
Thunderstorm Wind, Kay
- When
- July 1, 6:50 AM CST
- Where
- Kay County, Ponca City
- Property damage
- $15,000
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 36.700, -97.080
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
- Tornadoes and Hail in Pennsylvania, July 1 to 31, 1999
- Drought in Pennsylvania, July 1 to 31, 1999
- Flash Flooding and Hail in Kansas, July 1, 1999
- Drought in Virginia, July 1 to 31, 1999
- Tornado and Damaging Winds in Ohio, July 1, 1999
- Flash Flood and Damaging Winds in Tennessee, July 1 to 29, 1999
- Tornado in Kentucky, July 1, 1999
- Flooding in Florida, July 1, 1999
- Hail and Damaging Winds in Oklahoma, July 1, 1999
- Lightning Strike in Florida, July 1, 1999
- Hail and Damaging Winds in South Dakota, July 1 to 27, 1999
- Flash Flooding and Damaging Winds in Tennessee, July 1 to 2, 1999
More
Every storm in Oklahoma in 1999Every state in 1999This day in weather historyWarnings in Oklahoma, July 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: 5715061, 5715060, 5715062, 5715064, 5715065, 5715063.