Alert archive / Oklahoma / Mesoscale Discussions in 2007
Mesoscale Discussion 41
The Storm Prediction Center issued this mesoscale discussion at Jan 12, 2007, 6:46 AM CST for 5 counties in Kansas; 28 counties in Oklahoma. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 12, 2007, 6:46 AM CST (12:46 UTC)
- Expired
- Jan 12, 2007, 10:45 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Chautauqua County, KS, Cherokee County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Craig County, OK, Creek County, OK, Custer County, OK, Garfield County, OK, Grady County, OK, Greer County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, Noble County, OK, Nowata County, OK, Oklahoma County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK, Washita County, OK
The radar
The Norman radar (KTLX), 83 km from the middle of the area, began a volume at 12:46 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
Lamont, OK (KLMN), launched 12:00Z, 0.8 hours before the alert went out and 69 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
- 19 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 416 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 328 m²/s²
- 0-3 km storm-relative helicity
- 412 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jan 12, 12:34 PM CST | Mesoscale Discussion | SPC | Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 3 more | 5 hr |
| Jan 12, 12:49 PM CST | Mesoscale Discussion | SPC | Caddo, Canadian, Carter, Cherokee, Cleveland, Coal and 36 more | 5 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Kansas, 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.