Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 830, NWS Norman, OK

August 7, 2026Grant County, Kay County, Noble County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 7, 2026, 9:54 AM CDT for Grant County, Kay County, Noble County, Oklahoma. It was in force for 17 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: Aug 7, 2026, 9:54 AM CDT (14:54 UTC)
Expired: Aug 7, 2026, 10:11 AM CDT
In force: 17 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Grant County, OK, Kay County, OK, Noble County, OK

The radar

The Vance AFB radar (KVNX), 67 km from the middle of the area, began a volume at 14:54 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 nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 2.9 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: 721 J/kg
Mixed-layer CIN: -264 J/kg
Mixed-layer LCL: 1754 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

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 Aug 6, 6:20 PM CDT, 15 hours 34 minutes earlier.

Area forecast discussion, Aug 6, 6:20 PM CDT, 15 hours 34 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
Aug 6, 8:05 PM CDT	Special Weather Statement	OUN	Harper	40 min
Aug 6, 8:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Harper	46 min
Aug 6, 8:57 PM CDT	Severe Thunderstorm Warning	OUN	Harper	33 min
Aug 7, 4:03 AM CDT	Severe Thunderstorm Warning	OUN	Grant	27 min
Aug 7, 4:57 AM CDT	Severe Thunderstorm Warning	OUN	Grant	33 min
Aug 7, 5:31 AM CDT	Severe Thunderstorm Warning	OUN	Grant	29 min
Aug 7, 5:33 AM CDT	Special Weather Statement	OUN	Grant	42 min
Aug 7, 6:13 AM CDT	Special Weather Statement	OUN	Grant	32 min
Aug 7, 6:34 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	26 min
Aug 7, 6:58 AM CDT	Special Weather Statement	OUN	Grant	32 min
Aug 7, 8:43 AM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay, Noble	47 min
Aug 7, 8:52 AM CDT	Special Weather Statement	OUN	Major	38 min
Aug 7, 9:06 AM CDT	Special Weather Statement	OUN	Grant	24 min
Aug 7, 9:14 AM CDT	Special Weather Statement	OUN	Kay	31 min
Aug 7, 9:29 AM CDT	Special Weather Statement	OUN	Grant	31 min
Aug 7, 9:45 AM CDT	Special Weather Statement	OUN	Major	30 min
Aug 7, 9:53 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Major	39 min
Aug 7, 10:32 AM CDT	Special Weather Statement	OUN	Garfield	28 min
Aug 7, 11:18 AM CDT	Special Weather Statement	OUN	Garfield	27 min
Aug 7, 11:32 AM CDT	Special Weather Statement	OUN	Kingfisher	28 min
Aug 7, 11:44 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	31 min
Aug 7, 11:45 AM CDT	Heat Advisory	OUN	Alfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 42 more	32 hr
Aug 7, 11:52 AM CDT	Special Weather Statement	OUN	Logan	23 min
Aug 7, 12:03 PM CDT	Special Weather Statement	OUN	Logan	27 min
Aug 7, 12:06 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	39 min
Aug 7, 12:42 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	48 min
Aug 7, 12:45 PM CDT	Special Weather Statement	OUN	Logan	30 min
Aug 7, 12:46 PM CDT	Special Weather Statement	OUN	Payne	29 min
Aug 7, 1:03 PM CDT	Severe Thunderstorm Warning	OUN	Canadian	27 min
Aug 7, 1:12 PM CDT	Special Weather Statement	OUN	Lincoln	33 min
Aug 7, 1:28 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, Oklahoma	47 min
Aug 7, 1:29 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	46 min
Aug 7, 1:48 PM CDT	Areal Flood Advisory	OUN	Canadian, Oklahoma	3 hr
Aug 7, 2:15 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	30 min
Aug 7, 2:20 PM CDT	Special Weather Statement	OUN	Garvin	25 min
Aug 7, 2:32 PM CDT	Special Weather Statement	OUN	Seminole	28 min
Aug 7, 2:34 PM CDT	Special Weather Statement	OUN	Grady	26 min
Aug 7, 2:45 PM CDT	Special Weather Statement	OUN	Hughes	30 min
Aug 7, 2:52 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	38 min
Aug 7, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc, Pottawatomie, Seminole	50 min
Aug 7, 2:59 PM CDT	Special Weather Statement	OUN	Cleveland	31 min
Aug 7, 3:04 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	22 min
Aug 7, 3:22 PM CDT	Special Weather Statement	OUN	Hughes	38 min
Aug 7, 3:37 PM CDT	Areal Flood Advisory	OUN	Murray	3 hr
Aug 7, 3:39 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Pontotoc	36 min
Aug 7, 3:42 PM CDT	Special Weather Statement	OUN	Carter, Garvin, Murray, Stephens	33 min
Aug 7, 4:14 PM CDT	Special Weather Statement	OUN	Johnston	31 min
Aug 7, 4:26 PM CDT	Areal Flood Advisory	OUN	Carter, Stephens	3 hr
Aug 7, 4:29 PM CDT	Areal Flood Advisory	OUN	Coal, Hughes, Johnston, Murray, Pontotoc	3 hr
Aug 7, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Johnston	23 min
Aug 7, 4:45 PM CDT	Special Weather Statement	OUN	Carter	30 min
Aug 7, 4:46 PM CDT	Special Weather Statement	OUN	Johnston	29 min
Aug 7, 5:27 PM CDT	Special Weather Statement	OUN	Bryan	33 min
Aug 7, 5:34 PM CDT	Special Weather Statement	OUN	Marshall	26 min
Aug 7, 5:35 PM CDT	Areal Flood Advisory	OUN	Johnston, Marshall	3 hr
Aug 7, 6:53 PM CDT	Special Weather Statement	OUN	Roger Mills	22 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.