Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 482, NWS Norman, OK

May 29, 2026Grant County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 29, 2026, 5:58 PM CDT for Grant County, Oklahoma. It was in force for 31 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
May 29, 2026, 5:58 PM CDT (22:58 UTC)
Expired
May 29, 2026, 6:29 PM CDT
In force
31 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Grant County, OK

The radar

The Vance AFB radar (KVNX), 31 km from the middle of the area, began a volume at 22:57 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.

IssuedProductOfficeLasted
May 29, 3:42 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.0 hours before the alert went out and 179 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-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2026-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 823 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 2026-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
823 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1007 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 10:40 AM CDTSpecial Weather StatementOUNCleveland35 min
May 29, 3:25 PM CDTSpecial Weather StatementOUNBlaine35 min
May 29, 3:30 PM CDTSpecial Weather StatementOUNBlaine30 min
May 29, 3:47 PM CDTSevere Thunderstorm WarningOUNBlaine, Kingfisher43 min
May 29, 3:50 PM CDTSpecial Weather StatementOUNMajor25 min
May 29, 4:09 PM CDTSpecial Weather StatementOUNKingfisher21 min
May 29, 4:15 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Major30 min
May 29, 4:16 PM CDTSpecial Weather StatementOUNMajor29 min
May 29, 4:31 PM CDTSevere Thunderstorm WarningOUNGarfield, Major29 min
May 29, 4:39 PM CDTSpecial Weather StatementOUNMajor36 min
May 29, 4:46 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAlfalfa, Garfield, Major29 min
May 29, 4:59 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAlfalfa, Garfield, Grant, Major46 min
May 29, 5:03 PM CDTSpecial Weather StatementOUNKingfisher27 min
May 29, 5:13 PM CDTSpecial Weather StatementOUNAlfalfa32 min
May 29, 5:22 PM CDTAreal Flood AdvisoryOUNGarfield3 hr
May 29, 5:28 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNAlfalfa, Garfield, Grant47 min
May 29, 5:36 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Woods39 min
May 29, 6:03 PM CDTSevere Thunderstorm WarningOUNGrant, Kay42 min
May 29, 6:14 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Grant31 min
May 29, 6:31 PM CDTSevere Thunderstorm WarningOUNKingfisher, Logan29 min
May 29, 6:39 PM CDTSevere Thunderstorm WarningOUNKay27 min
May 29, 6:41 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Grant18 min
May 29, 6:54 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Logan, Noble36 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2026Every 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.