Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 59, NWS Norman, OK

March 10, 2026Cotton County, Tillman County, Oklahoma; Wichita County, Texas

NWS Norman, OK issued this severe thunderstorm warning at Mar 10, 2026, 5:09 PM CDT for Cotton County, Tillman County, Oklahoma; Wichita County, Texas. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 10, 2026, 5:09 PM CDT (22:09 UTC)
Expired: Mar 10, 2026, 6:00 PM CDT
In force: 51 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Cotton County, OK, Tillman County, OK, Wichita County, TX

The radar

The Altus AFB radar (KFDR), 33 km from the middle of the area, began a volume at 22:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 10, 5:01 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.2 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 741 J/kg
Mixed-layer CIN: -252 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 261 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 10, 1:30 PM CDT, 3 hours 39 minutes earlier.

Area forecast discussion, Mar 10, 1:30 PM CDT, 3 hours 39 minutes before

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In the hours before

Special weather statement, Mar 10, 3:35 PM CDT, 1 hour 34 minutes before

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Special weather statement, Mar 10, 3:56 PM CDT, 1 hour 13 minutes before

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Special weather statement, Mar 10, 4:56 PM CDT, 13 minutes before

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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 10, 1:26 PM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 31 more	30 hr
Mar 10, 3:35 PM CDT	Special Weather Statement	OUN	Ellis	25 min
Mar 10, 3:56 PM CDT	Special Weather Statement	OUN	Ellis	49 min
Mar 10, 4:09 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	51 min
Mar 10, 4:34 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	41 min
Mar 10, 5:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Harper, Woods, Woodward	58 min
Mar 10, 5:19 PM CDT	Special Weather Statement	OUN	Caddo	26 min
Mar 10, 5:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Woods	32 min
Mar 10, 5:32 PM CDT	Special Weather Statement	OUN	Harper	28 min
Mar 10, 5:39 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady	51 min
Mar 10, 5:55 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian	50 min
Mar 10, 5:57 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton	48 min
Mar 10, 6:06 PM CDT	Special Weather Statement	OUN	Harper	24 min
Mar 10, 6:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	46 min
Mar 10, 6:21 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	39 min
Mar 10, 6:27 PM CDT	Tornado Warning	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	48 min
Mar 10, 6:36 PM CDT	Special Weather Statement	OUN	Harper	24 min
Mar 10, 6:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Comanche, Cotton, Stephens	53 min
Mar 10, 6:47 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Tillman	43 min
Mar 10, 6:50 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kingfisher	55 min
Mar 10, 6:55 PM CDT	Tornado Warning	OUN	Cleveland, Oklahoma	50 min
Mar 10, 4:56 PM CDT	Special Weather Statement	OUN	Wichita	34 min
Mar 10, 5:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Baylor, Knox	38 min
Mar 10, 6:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Baylor, Wilbarger	52 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2026 Severe Thunderstorm Warnings in Texas, 2026 Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.