Alert archive / Texas / Mesoscale Discussions in 2010
Mesoscale Discussion 331
The Storm Prediction Center issued this mesoscale discussion at Apr 21, 2010, 7:41 PM CDT for 34 counties in Texas. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Apr 21, 2010, 7:41 PM CDT (00:41 UTC)
- Expired
- Apr 21, 2010, 8:45 PM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 34 counties
Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX, Yoakum County, TX
The radar
The Amarillo radar (KAMA), 77 km from the middle of the area, began a volume at 00:42 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, 0.7 hours before the alert went out and 77 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
- 546 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1120 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.6
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 | Dallam, Hansford, Hartley, Hutchinson, Moore, Sherman | 54 min |
| Apr 21, 10:31 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Castro, Cochran, Dawson, Deaf Smith and 13 more | 59 min |
| Apr 22, 2:21 AM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 20 more | 84 min |
| Apr 22, 2:01 PM CDT | Mesoscale Discussion | SPC | Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more | 59 min |
| Apr 22, 2:30 PM CDT | Tornado Watch | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Cottle and 29 more | 6 hr |
| Apr 22, 5:57 PM CDT | Mesoscale Discussion | SPC | Armstrong, Borden, Briscoe, Carson, Childress, Coke and 43 more | 63 min |
Nearby
Mesoscale Discussions in Texas, 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.