Damaging Winds in Oklahoma, August 11, 2001

Name: Damaging Winds in Oklahoma, August 11, 2001
Start: 2001-08-11T01:35
End: 2001-08-11T23:51
Location: Oklahoma

August 11, 2001 · NWS TSA · 2 events in 2 counties and zones

2 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: 2

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 forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before the first event at Aug 10, 7:55 PM CST, 5 hours 40 minutes earlier.

Area forecast discussion, Aug 10, 7:55 PM CST, 5 hours 40 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
855 PM CDT FRI AUG 10 2001

CONVECTION BECAME WIDESPREAD LATE THIS AFTERNOON WITH MAIN
AREA NOW IN A BAND ALONG SFC FRONT FROM NC ARK INTO FAR SE OK.
OTHER ISOLATED TO SCATTERED STORMS ARE TRYING TO DEVELOP
OVER NE OK AND NW CORNER OF ARKANSAS BEHIND SFC FRONT...
IN AREA OF BEST 850 MB MOISTURE CONVERGENCE. 00Z RUC SHOWS
MOST UNSTABLE ELEVATED INSTABILITIES IN THIS AREA AS WELL
OVERNIGHT. WILL COUNT ON LEAVING CHANCE POPS AREAWIDE
OVERNIGHT IN ALL BUT FAR NE OK NEAR THE KS BORDER WHERE
SOME DRIER LOW LEVEL AIR IS EXPECTED. WHERE PCP FELL
TEMPS ARE IN THE LOW/MID 70S WITH READINGS STILL IN THE
MID/UPPER 80S ELSEWHERE. MAY TWEAK MINS UP A FEW DEGS IN
UPDATE WITH DRY AIR NOT EXPECTED TO MAKE MUCH HEADWAY INTO
THE AREA. LOOKS LIKE THINGS WILL REMAIN UNSETTLED ON SATURDAY
AS WELL WITH FRONT EXPECTED TO DRIFT SLIGHTLY SOUTHWARD THEN
LINGER AROUND INTO SUNDAY. /13

.TSA...
AR...NONE.
OK...NONE.

The radar

The Western Arkansas radar (KSRX), 48 km away, was scanning. The volume nearest the first event began at 07:33 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Le Flore

When: August 11, 1:35 AM CST
Where: Le Flore County, Wister
Measured: 52 kt (60 mph)
Reported by: GENERAL PUBLIC
Coordinates: 34.967, -94.717

Thunderstorm Wind, Pittsburg

When: August 11, 11:51 PM CST
Where: Pittsburg County, 3 mi E of Canadian
Measured: 52 kt (60 mph)
Reported by: GENERAL PUBLIC
Coordinates: 35.167, -95.600

Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs at Arrowhead State Park.

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

Every storm in Oklahoma in 2001 Every state in 2001 This day in weather history Warnings in Oklahoma, August 2001

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: 5264885, 5264884.