Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 39, NWS Norman, OK

March 6, 2026Grady County, McClain County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 6, 2026, 4:09 PM CST for Grady County, McClain County, Oklahoma. It was in force for 36 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 6, 2026, 4:09 PM CST (22:09 UTC)
Expired: Mar 6, 2026, 4:45 PM CST
In force: 36 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Grady County, OK, McClain County, OK

The radar

The Norman radar (KTLX), 50 km from the middle of the area, began a volume at 22:10 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 6, 2:44 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.2 hours before the alert went out and 33 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: 269 J/kg
Mixed-layer CIN: -242 J/kg
Mixed-layer LCL: 681 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 378 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.9

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 6, 4:07 PM CST, 2 minutes earlier.

Area forecast discussion, Mar 6, 4:07 PM CST, 2 minutes before

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In the hours before

Special weather statement, Mar 6, 10:49 AM CST, 5 hours 20 minutes before

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Special weather statement, Mar 6, 2:43 PM CST, 1 hour 26 minutes before

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Special weather statement, Mar 6, 3:07 PM CST, 1 hour 2 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 5, 6:54 PM CST	Special Weather Statement	OUN	Dewey	36 min
Mar 5, 7:01 PM CST	Severe Thunderstorm Warning	OUN	Custer, Dewey	44 min
Mar 5, 7:21 PM CST	Special Weather Statement	OUN	Beckham	24 min
Mar 5, 7:32 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	43 min
Mar 5, 7:44 PM CST	Severe Thunderstorm Warning	OUN	Dewey, Major	46 min
Mar 5, 7:50 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	40 min
Mar 5, 8:05 PM CST	Tornado Warning	OUN	Major, Woods	40 min
Mar 5, 8:06 PM CST	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	39 min
Mar 5, 8:09 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	51 min
Mar 5, 8:38 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	67 min
Mar 5, 8:40 PM CST	Tornado Warning	OUN	Alfalfa, Major	50 min
Mar 5, 8:42 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills	48 min
Mar 5, 9:23 PM CST	Tornado Warning Tornado observedConsiderable damage threat	OUN	Alfalfa	28 min
Mar 5, 9:41 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	49 min
Mar 5, 9:45 PM CST	Tornado Warning Tornado observed	OUN	Grant	45 min
Mar 5, 9:54 PM CST	Tornado Warning Tornado observedConsiderable damage threat	OUN	Grant	51 min
Mar 5, 9:56 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa	49 min
Mar 5, 9:57 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	48 min
Mar 5, 10:15 PM CST	Tornado Warning	OUN	Beckham	30 min
Mar 5, 10:29 PM CST	Tornado Warning Tornado observedConsiderable damage threat	OUN	Grant	35 min
Mar 5, 10:32 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	43 min
Mar 5, 10:39 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	51 min
Mar 5, 10:41 PM CST	Tornado Warning	OUN	Beckham, Roger Mills	34 min
Mar 5, 11:23 PM CST	Severe Thunderstorm Warning	OUN	Roger Mills	52 min
Mar 5, 11:44 PM CST	Severe Thunderstorm Warning	OUN	Custer, Dewey	46 min
Mar 6, 12:10 AM CST	Severe Thunderstorm Warning Considerable damage threat	OUN	Dewey, Major, Woodward	50 min
Mar 6, 12:21 AM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	39 min
Mar 6, 12:54 AM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major, Woods	51 min
Mar 6, 1:37 AM CST	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Kay	38 min
Mar 6, 2:12 AM CST	Special Weather Statement	OUN	Grant, Kay	48 min
Mar 6, 8:37 AM CST	Special Weather Statement	OUN	Logan	38 min
Mar 6, 8:48 AM CST	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	25 min
Mar 6, 8:52 AM CST	Special Weather Statement	OUN	Grady	23 min
Mar 6, 9:03 AM CST	Special Weather Statement	OUN	Oklahoma	27 min
Mar 6, 9:17 AM CST	Special Weather Statement	OUN	Logan, Noble	43 min
Mar 6, 9:47 AM CST	Special Weather Statement	OUN	Lincoln	28 min
Mar 6, 10:06 AM CST	Special Weather Statement	OUN	Payne	39 min
Mar 6, 10:49 AM CST	Special Weather Statement	OUN	Payne	26 min
Mar 6, 2:43 PM CST	Special Weather Statement	OUN	Johnston	32 min
Mar 6, 2:59 PM CST	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	46 min
Mar 6, 3:07 PM CST	Special Weather Statement	OUN	Murray	38 min
Mar 6, 3:16 PM CST	Severe Thunderstorm Warning	OUN	Garvin, Murray	44 min
Mar 6, 3:38 PM CST	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Pottawatomie	52 min
Mar 6, 4:05 PM CST	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	40 min
Mar 6, 4:12 PM CST	Severe Thunderstorm Warning	OUN	Lincoln	48 min
Mar 6, 4:13 PM CST	Severe Thunderstorm Warning	OUN	Carter, Garvin	47 min
Mar 6, 4:18 PM CST	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	42 min
Mar 6, 4:33 PM CST	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Pottawatomie, Seminole	42 min
Mar 6, 4:44 PM CST	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	46 min
Mar 6, 4:48 PM CST	Severe Thunderstorm Warning	OUN	Payne	27 min
Mar 6, 5:11 PM CST	Severe Thunderstorm Warning	OUN	Cleveland, Pottawatomie, Seminole	49 min
Mar 6, 5:27 PM CST	Severe Thunderstorm Warning	OUN	Lincoln	36 min
Mar 6, 5:57 PM CST	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	48 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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.