Alert archive / Oklahoma / Mesoscale Discussions in 2007
Mesoscale Discussion 1465
The Storm Prediction Center issued this mesoscale discussion at Jul 12, 2007, 10:29 PM CDT for 34 counties in Oklahoma; 6 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2007, 10:29 PM CDT (03:29 UTC)
- Expired
- Jul 13, 2007, 1:30 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Roger Mills County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Childress County, TX, Collingsworth County, TX, Donley County, TX, Hall County, TX, Hemphill County, TX, Wheeler County, TX
The radar
The Altus AFB radar (KFDR), 131 km from the middle of the area, began a volume at 03:32 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 00:00Z, 3.5 hours before the alert went out and 126 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
- 2507 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 9.5
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 |
|---|---|---|---|---|
| Jul 12, 8:29 PM CDT | Mesoscale Discussion | SPC | Beaver, Cimarron, Ellis, Harper, Texas | 91 min |
Nearby
Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
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.