Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 924
The Storm Prediction Center issued this mesoscale discussion at May 26, 2004, 6:37 PM CDT for 30 counties in Oklahoma. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- May 26, 2004, 6:37 PM CDT (23:37 UTC)
- Expired
- May 26, 2004, 8:00 PM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
All 30 counties
Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Nowata County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Washington County, OK, Washita County, OK
The radar
The Norman radar (KTLX), 48 km from the middle of the area, began a volume at 23:38 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
Norman, OK (KOUN), launched 12:00Z, 11.6 hours before the alert went out and 51 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
- 777 J/kg
- Mixed-layer CIN
- -326 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 292 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 7:07 PM CDT | Mesoscale Discussion | SPC | Carter, Comanche, Cotton, Garvin, Jefferson, Johnston and 5 more | 113 min |
| May 25, 11:28 PM CDT | Mesoscale Discussion | SPC | Harmon, Jackson | 2 hr |
| May 26, 12:12 PM CDT | Mesoscale Discussion | SPC | Beckham, Custer, Dewey, Greer, Harmon, Jackson and 3 more | 3 hr |
| May 26, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | Greer, Harmon, Jackson | 6 hr |
| May 26, 3:55 PM CDT | Tornado Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 16 more | 6 hr |
| May 26, 5:37 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 15 more | 83 min |
| May 26, 6:07 PM CDT | Mesoscale Discussion | SPC | Greer, Harmon, Jackson | 83 min |
| May 26, 6:25 PM CDT | Tornado Watch | SPC | Cleveland, Creek, Grady, Lincoln, Logan, McClain and 7 more | 5 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2004Every mesoscale discussion in 2004
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.