Alert archive / Texas / Mesoscale Discussions in 2010
Mesoscale Discussion 340
The Storm Prediction Center issued this mesoscale discussion at Apr 22, 2010, 5:57 PM CDT for 10 counties in Oklahoma; 49 counties in Texas. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Apr 22, 2010, 5:57 PM CDT (22:57 UTC)
- Expired
- Apr 22, 2010, 7:00 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 59 counties
Beaver County, OK, Beckham County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Roger Mills County, OK, Texas County, OK, Woodward County, OK, Armstrong County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Coke 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, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hemphill County, TX, Howard County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Knox County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Moore County, TX, Motley County, TX, Nolan County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Reagan County, TX, Roberts County, TX, Scurry County, TX, Sherman County, TX, Sterling County, TX, Stonewall County, TX, Swisher County, TX, Upton County, TX, Wheeler County, TX
The radar
The Lubbock radar (KLBB), 59 km from the middle of the area, began a volume at 22:57 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.0 hours before the alert went out and 149 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
- 33 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1875 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 284 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 |
|---|---|---|---|---|
| Apr 21, 9:06 PM CDT | Mesoscale Discussion | SPC | Cimarron, Texas | 54 min |
| Apr 22, 2:21 AM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Ellis, Harmon, Harper and 3 more | 84 min |
| Apr 22, 2:01 PM CDT | Mesoscale Discussion | SPC | Beaver, Texas | 59 min |
| Apr 22, 2:30 PM CDT | Tornado Watch | SPC | Beaver, Beckham, Ellis, Greer, Harmon, Harper and 3 more | 6 hr |
| Apr 22, 4:56 PM CDT | Mesoscale Discussion | SPC | Craig, Nowata, Ottawa | 34 min |
| Apr 21, 7:41 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 28 more | 64 min |
| Apr 21, 10:31 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Castro, Cochran, Dawson, Deaf Smith and 13 more | 59 min |
Nearby
Mesoscale Discussions in Texas, 2010Mesoscale Discussions in Oklahoma, 2010Every mesoscale discussion in 2010
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.