Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 404, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 9, 2024, 12:09 PM CDT for Cotton County, Jefferson County, Oklahoma; Clay County, Wichita County, Texas. It was in force for 51 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 9, 2024, 12:09 PM CDT (17:09 UTC)
- Expired
- May 9, 2024, 1:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
Counties Cotton County, OK, Jefferson County, OK, Clay County, TX, Wichita County, TX
The radar
The Altus AFB radar (KFDR), 73 km from the middle of the area, began a volume at 17:12 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
Fort Worth, TX (KFWD), launched 12:00Z, 5.2 hours before the alert went out and 163 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
- 3117 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 608 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:31 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 29 min |
| May 9, 12:51 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Jefferson, Stephens | 54 min |
| May 9, 1:12 PM CDT | Special Weather Statement | OUN | Johnston | 33 min |
| May 9, 1:36 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, McClain, Stephens | 54 min |
| May 9, 2:14 PM CDT | Special Weather Statement | OUN | Cleveland, McClain | 46 min |
| May 9, 2:23 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland, McClain, Oklahoma | 52 min |
| May 9, 2:48 PM CDT | Special Weather Statement | OUN | Marshall | 27 min |
| May 9, 3:09 PM CDT | Special Weather Statement | OUN | Bryan | 36 min |
| May 9, 3:12 PM CDT | Special Weather Statement | OUN | Pottawatomie | 33 min |
| May 9, 4:00 PM CDT | Severe Thunderstorm Warning | OUN | Love | 24 min |
| May 9, 4:52 PM CDT | Special Weather Statement | OUN | Bryan | 23 min |
| May 9, 11:20 AM CDT | Special Weather Statement | OUN | Archer | 25 min |
| May 9, 11:34 AM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay, Wichita | 41 min |
| May 9, 1:08 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 67 min |
| May 9, 1:25 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 65 min |
| May 9, 3:00 PM CDT | Special Weather Statement | OUN | Clay | 30 min |
| May 9, 3:14 PM CDT | Special Weather Statement | OUN | Clay | 31 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2024Severe Thunderstorm Warnings in Texas, 2024Every severe thunderstorm warning in 2024
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.