Alert archive / Oklahoma / Mesoscale Discussions in 2007
Mesoscale Discussion 320
The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2007, 1:59 PM CDT for 15 counties in Kansas; 16 counties in Oklahoma; Hemphill County, Wheeler County, Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 22, 2007, 1:59 PM CDT (18:59 UTC)
- Expired
- Mar 22, 2007, 4:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Barber County, KS, Butler County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Harper County, KS, Kingman County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Craig County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Major County, OK, Nowata County, OK, Roger Mills County, OK, Washington County, OK, Woods County, OK, Woodward County, OK, Hemphill County, TX, Wheeler County, TX
The radar
The Vance AFB radar (KVNX), 11 km from the middle of the area, began a volume at 19:03 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, 7.0 hours before the alert went out and 63 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
- 744 J/kg
- Mixed-layer CIN
- -242 J/kg
- Mixed-layer LCL
- 681 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 177 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 |
|---|---|---|---|---|
| Mar 21, 9:31 PM CDT | Mesoscale Discussion | SPC | Brown, Doniphan, Nemaha | 59 min |
| Mar 22, 12:52 AM CDT | Mesoscale Discussion | SPC | Atchison, Jefferson, Leavenworth, Wyandotte | 53 min |
| Mar 22, 3:23 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Barber, Bourbon, Butler, Chase and 28 more | 67 min |
| Mar 21, 7:56 PM CDT | Mesoscale Discussion | SPC | Beckham, Greer, Harmon, Jackson, Roger Mills | 64 min |
| Mar 22, 7:55 AM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Briscoe, Castro, Cochran and 19 more | 65 min |
| Mar 22, 12:42 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Castro, Cochran, Crane, Culberson and 16 more | 3 hr |
| Mar 22, 5:57 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Borden, Brewster, Briscoe, Castro, Childress and 32 more | 6 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Kansas, 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.