Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 1049, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 28, 2025, 1:36 AM CDT for Harper County, Woods County, Oklahoma. It was in force for 39 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 28, 2025, 1:36 AM CDT (06:36 UTC)
- Expired
- Aug 28, 2025, 2:15 AM CDT
- In force
- 39 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Harper County, OK, Woods County, OK
The radar
The Vance AFB radar (KVNX), 102 km from the middle of the area, began a volume at 06:36 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
Dodge City, (KDDC), launched 00:00Z, 6.6 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 1155 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 5.4
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 8:36 PM CDT | River Flood Advisory | OUN | Major, Woods, Woodward | 6 hr |
| Aug 27, 11:34 PM CDT | Flood Watch | OUN | Alfalfa, Garfield, Grant, Harper, Kay, Major and 4 more | 12 hr |
| Aug 27, 11:38 PM CDT | Special Weather Statement | OUN | Harper | 37 min |
| Aug 28, 1:18 AM CDT | Special Weather Statement | OUN | Harper | 27 min |
| Aug 28, 2:19 AM CDT | Areal Flood Advisory | OUN | Harper | 3 hr |
| Aug 28, 2:28 AM CDT | River Flood Watch | OUN | Grant, Kay, Noble | 6 hr |
| Aug 28, 2:28 AM CDT | River Flood Warning | OUN | Major, Woods, Woodward | 25 hr |
| Aug 28, 2:28 AM CDT | River Flood Advisory | OUN | Kingfisher, Logan | 6 hr |
| Aug 28, 2:28 AM CDT | River Flood Advisory | OUN | Alfalfa, Woods | 25 hr |
| Aug 28, 2:28 AM CDT | River Flood Advisory | OUN | Grant, Kay | 6 hr |
| Aug 28, 2:39 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 51 min |
| Aug 28, 5:24 AM CDT | Special Weather Statement | OUN | Woods | 36 min |
| Aug 28, 5:43 AM CDT | Areal Flood Advisory | OUN | Woods | 3 hr |
| Aug 28, 6:08 AM CDT | Areal Flood Advisory | OUN | Kay | 3 hr |
| Aug 28, 6:11 AM CDT | Areal Flood Advisory | OUN | Alfalfa, Grant | 3 hr |
| Aug 28, 6:21 AM CDT | Areal Flood Advisory | OUN | Harper, Woodward | 3 hr |
| Aug 28, 7:20 AM CDT | Areal Flood Advisory | OUN | Major | 3 hr |
| Aug 28, 11:59 AM CDT | Areal Flood Advisory | OUN | Lincoln, Oklahoma | 3 hr |
| Aug 28, 2:57 PM CDT | Special Weather Statement | OUN | Clay | 33 min |
| Aug 28, 3:12 PM CDT | Special Weather Statement | OUN | Wichita | 33 min |
| Aug 28, 3:46 PM CDT | Special Weather Statement | OUN | Wichita | 29 min |
| Aug 28, 5:21 PM CDT | Special Weather Statement | OUN | Hardeman | 24 min |
| Aug 28, 5:56 PM CDT | Special Weather Statement | OUN | Knox | 34 min |
| Aug 28, 6:26 PM CDT | Special Weather Statement | OUN | Knox | 34 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2025Every severe thunderstorm warning in 2025
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.