Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 849, NWS Norman, OK

August 14, 2026Ellis County, Harper County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 14, 2026, 3:26 PM CDT for Ellis County, Harper County, Oklahoma. It was in force for 49 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 14, 2026, 3:26 PM CDT (20:26 UTC)
Expired
Aug 14, 2026, 4:15 PM CDT
In force
49 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Ellis County, OK, Harper County, OK

The radar

The Dodge City radar (KDDC), 142 km from the middle of the area, began a volume at 20:29 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, 8.4 hours before the alert went out and 252 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 2026-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 913 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 2026-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 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
913 J/kg
Mixed-layer CIN
-320 J/kg
Mixed-layer LCL
1482 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
360 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 9:00 AM CDTExtreme Heat WarningOUNAlfalfa, Garfield, Grant, Kay, Kingfisher, Logan and 4 more11 hr
Aug 14, 1:28 PM CDTHeat AdvisoryOUNBlaine, Caddo, Comanche, Cotton, Jackson, Tillman54 hr
Aug 14, 2:43 PM CDTSpecial Weather StatementOUNHarper32 min
Aug 14, 2:51 PM CDTSevere Thunderstorm WarningOUNEllis, Harper39 min
Aug 14, 4:13 PM CDTSevere Thunderstorm WarningOUNEllis, Harper, Woods, Woodward47 min
Aug 14, 4:47 PM CDTSevere Thunderstorm WarningOUNEllis, Harper, Woodward43 min
Aug 14, 5:01 PM CDTSpecial Weather StatementOUNEllis29 min
Aug 14, 5:09 PM CDTSpecial Weather StatementOUNHarper36 min
Aug 14, 5:19 PM CDTSevere Thunderstorm WarningOUNEllis, Harper, Woodward26 min
Aug 14, 5:30 PM CDTSpecial Weather StatementOUNEllis30 min
Aug 14, 5:39 PM CDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward51 min
Aug 14, 5:58 PM CDTSpecial Weather StatementOUNEllis32 min
Aug 14, 6:12 PM CDTSpecial Weather StatementOUNWoods33 min
Aug 14, 6:37 PM CDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward38 min
Aug 14, 6:44 PM CDTSpecial Weather StatementOUNEllis31 min
Aug 14, 6:55 PM CDTSpecial Weather StatementOUNHarper35 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.