Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 779, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Sep 5, 2023, 9:45 PM CDT for Cleveland County, McClain County, Pottawatomie County, Oklahoma. It was in force for 30 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
- Sep 5, 2023, 9:45 PM CDT (02:45 UTC)
- Expired
- Sep 5, 2023, 10:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cleveland County, OK, McClain County, OK, Pottawatomie County, OK
The radar
The Norman radar (KTLX), 22 km from the middle of the area, began a volume at 02:43 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 5, 4:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.8 hours before the alert went out and 366 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
- 2269 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1568 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 336 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 7:16 PM CDT | Special Weather Statement | OUN | Comanche | 29 min |
| Sep 5, 7:16 PM CDT | Special Weather Statement | OUN | Grady | 29 min |
| Sep 5, 7:23 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Pottawatomie | 52 min |
| Sep 5, 7:31 PM CDT | Special Weather Statement | OUN | Cleveland | 29 min |
| Sep 5, 7:46 PM CDT | Special Weather Statement | OUN | Tillman | 29 min |
| Sep 5, 7:55 PM CDT | Special Weather Statement | OUN | Comanche | 35 min |
| Sep 5, 8:04 PM CDT | Special Weather Statement | OUN | Cotton | 26 min |
| Sep 5, 8:11 PM CDT | Severe Thunderstorm Warning | OUN | Pottawatomie, Seminole | 25 min |
| Sep 5, 8:25 PM CDT | Special Weather Statement | OUN | Stephens | 35 min |
| Sep 5, 8:38 PM CDT | Special Weather Statement | OUN | Pottawatomie | 37 min |
| Sep 5, 9:10 PM CDT | Special Weather Statement | OUN | McClain | 35 min |
| Sep 5, 9:12 PM CDT | Special Weather Statement | OUN | Stephens | 33 min |
| Sep 5, 9:16 PM CDT | Special Weather Statement | OUN | Cleveland | 29 min |
| Sep 5, 9:24 PM CDT | Special Weather Statement | OUN | Garvin | 36 min |
| Sep 5, 9:29 PM CDT | Special Weather Statement | OUN | Cleveland, McClain | 31 min |
| Sep 5, 9:37 PM CDT | Special Weather Statement | OUN | Jefferson | 38 min |
| Sep 5, 9:55 PM CDT | Severe Thunderstorm Warning | OUN | Pottawatomie | 23 min |
| Sep 6, 3:15 AM CDT | Special Weather Statement | OUN | Garvin | 45 min |
| Sep 6, 3:11 PM CDT | Heat Advisory | OUN | Atoka, Bryan, Carter, Coal, Cotton, Garvin and 7 more | 28 hr |
| Sep 5, 7:31 PM CDT | Special Weather Statement | OUN | Wichita | 29 min |
| Sep 5, 10:30 PM CDT | Special Weather Statement | OUN | Knox | 30 min |
| Sep 5, 11:00 PM CDT | Special Weather Statement | OUN | Baylor | 30 min |
| Sep 5, 11:17 PM CDT | Severe Thunderstorm Warning | OUN | Baylor | 43 min |
| Sep 5, 11:46 PM CDT | Special Weather Statement | OUN | Archer | 44 min |
| Sep 5, 11:52 PM CDT | Special Weather Statement | OUN | Archer | 38 min |
| Sep 6, 12:21 AM CDT | Special Weather Statement | OUN | Jack | 24 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2023Every severe thunderstorm warning in 2023
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.