Alert archive / Texas / Mesoscale Discussions in 2007
Mesoscale Discussion 308
The Storm Prediction Center issued this mesoscale discussion at Mar 21, 2007, 7:56 PM CDT for 5 counties in Oklahoma; 33 counties in Texas. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Mar 21, 2007, 7:56 PM CDT (00:56 UTC)
- Expired
- Mar 21, 2007, 9:00 PM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 38 counties
Beckham County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Roger Mills County, OK, Borden County, TX, Briscoe County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hall County, TX, Hardeman County, TX, Howard County, TX, Kent County, TX, King County, TX, Knox County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Terry County, TX, Upton County, TX, Wheeler County, TX
The radar
The Lubbock radar (KLBB), 74 km from the middle of the area, began a volume at 00:59 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.9 hours before the alert went out and 200 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
- 90 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 2932 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 103 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 |
|---|---|---|---|---|
| Mar 22, 1:59 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Craig, Custer, Dewey and 10 more | 2 hr |
| 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 Texas, 2007Mesoscale Discussions in Oklahoma, 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.