Alert archive / Oklahoma / Mesoscale Discussions in 2022
Mesoscale Discussion 583
The Storm Prediction Center issued this mesoscale discussion at Apr 29, 2022, 4:46 PM CDT for 23 counties in Oklahoma; Wichita County, Wilbarger County, Texas. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2022, 4:46 PM CDT (21:46 UTC)
- Expired
- Apr 29, 2022, 5:45 PM CDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...tornado watch likely
- Chance of a watch
- 95%
All 25 counties
Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Wichita County, TX, Wilbarger County, TX
The radar
The Norman radar (KTLX), 89 km from the middle of the area, began a volume at 21:48 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 9.8 hours before the alert went out and 322 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3996 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:23 PM CDT | Mesoscale Discussion | SPC | Cleveland, Creek, Garfield, Grant, Kay, Lincoln and 10 more | 3 hr |
| Apr 29, 5:00 PM CDT | Tornado Watch | SPC | Caddo, Canadian, Cleveland, Comanche, Cotton, Creek and 22 more | 3 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2022Mesoscale Discussions in Texas, 2022Every mesoscale discussion in 2022
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.