Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 813, NWS Norman, OK

July 31, 2026Harmon County, Jackson County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 31, 2026, 4:42 PM CDT for Harmon County, Jackson County, Oklahoma. It was in force for 48 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
Jul 31, 2026, 4:42 PM CDT (21:42 UTC)
Expired
Jul 31, 2026, 5:30 PM CDT
In force
48 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Harmon County, OK, Jackson County, OK

The radar

The Altus AFB radar (KFDR), 69 km from the middle of the area, began a volume at 21:47 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 office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 12:35 AM CDTSpecial Weather StatementOUNWoods25 min
Jul 31, 2:08 AM CDTExtreme Heat WarningOUNAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 31 more19 hr
Jul 31, 3:59 PM CDTSpecial Weather StatementOUNJackson31 min
Jul 31, 4:06 PM CDTSevere Thunderstorm WarningOUNJackson39 min
Jul 31, 4:13 PM CDTSevere Thunderstorm WarningOUNGreer, Harmon, Jackson47 min
Jul 31, 5:18 PM CDTSevere Thunderstorm Warning Considerable damage threatOUNJackson, Tillman42 min
Jul 31, 5:25 PM CDTSevere Thunderstorm WarningOUNHarmon, Jackson50 min
Jul 31, 5:26 PM CDTSpecial Weather StatementOUNKiowa34 min
Jul 31, 5:58 PM CDTSpecial Weather StatementOUNComanche32 min
Jul 31, 6:15 PM CDTSpecial Weather StatementOUNMcClain30 min
Jul 31, 6:18 PM CDTSevere Thunderstorm WarningOUNGarvin, Grady, McClain42 min
Jul 31, 6:21 PM CDTSevere Thunderstorm WarningOUNComanche, Kiowa, Tillman39 min
Jul 31, 6:46 PM CDTSpecial Weather StatementOUNComanche29 min
Jul 31, 6:56 PM CDTSpecial Weather StatementOUNGarvin34 min
Jul 31, 5:14 PM CDTSpecial Weather StatementOUNWilbarger31 min
Jul 31, 5:51 PM CDTSpecial Weather StatementOUNHardeman24 min
Jul 31, 6:13 PM CDTSevere Thunderstorm WarningOUNHardeman47 min
Jul 31, 6:57 PM CDTSpecial Weather StatementOUNHardeman33 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; radar from the NEXRAD Level II archive.