Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 486, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 27, 2023, 8:53 PM CDT for 4 counties in Oklahoma. It was in force for 52 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
- Jun 27, 2023, 8:53 PM CDT (01:53 UTC)
- Expired
- Jun 27, 2023, 9:45 PM CDT
- In force
- 52 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Ellis County, OK, Harper County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 114 km from the middle of the area, began a volume at 01:53 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 |
|---|---|---|---|
| Jun 27, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 1.9 hours before the alert went out and 143 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
- 2616 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1067 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 2.6
- Supercell composite
- 6.5
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 8:13 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 47 min |
| Jun 27, 8:57 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods | 33 min |
| Jun 27, 9:26 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Harper, Woods, Woodward | 34 min |
| Jun 27, 9:40 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods, Woodward | 20 min |
| Jun 27, 9:58 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Grant, Woods | 32 min |
| Jun 27, 10:25 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Garfield, Grant | 50 min |
| Jun 27, 10:50 PM CDT | Special Weather Statement | OUN | Blaine, Canadian, Custer, Dewey, Garfield, Kingfisher and 1 more | 25 min |
| Jun 27, 11:10 PM CDT | Special Weather Statement | OUN | Grant, Kay, Noble | 35 min |
| Jun 27, 11:32 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 43 min |
| Jun 28, 12:12 AM CDT | Special Weather Statement | OUN | Noble | 33 min |
| Jun 28, 2:33 PM CDT | Excessive Heat Warning | OUN | Atoka, Bryan, Carter, Coal, Garvin, Hughes and 6 more | 6 hr |
| Jun 28, 3:32 PM CDT | Heat Advisory | OUN | Atoka, Bryan, Carter, Cleveland, Coal, Garfield and 17 more | 29 hr |
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.