Alert archive / Texas / Mesoscale Discussions in 2011
Mesoscale Discussion 1350
The Storm Prediction Center issued this mesoscale discussion at Jun 21, 2011, 7:59 PM CDT for 54 counties in Texas. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2011, 7:59 PM CDT (00:59 UTC)
- Expired
- Jun 21, 2011, 9:00 PM CDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 54 counties
Bell County, TX, Blanco County, TX, Bosque County, TX, Brewster County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Crockett County, TX, Dallas County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Gillespie County, TX, Glasscock County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Irion County, TX, Johnson County, TX, Kerr County, TX, Kimble County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Mills County, TX, Palo Pinto County, TX, Parker County, TX, Pecos County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Sutton County, TX, Tarrant County, TX, Taylor County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Williamson County, TX, Wise County, TX
The radar
The San Angelo radar (KSJT), 90 km from the middle of the area, began a volume at 01:01 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
Midland Regional, TX (KMAF), launched 00:00Z, 1.0 hours before the alert went out and 264 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
- 347 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 3073 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 105 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 |
|---|---|---|---|---|
| Jun 21, 10:51 PM CDT | Mesoscale Discussion | SPC | Brazos, Falls, Freestone, Houston, Leon, Limestone and 4 more | 84 min |
| Jun 22, 12:29 AM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bexar, Brazos, Burleson, Caldwell and 29 more | 31 min |
| Jun 22, 12:47 AM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Austin, Bandera, Bastrop, Bexar, Blanco and 35 more | 3 hr |
| Jun 22, 3:54 AM CDT | Mesoscale Discussion | SPC | Austin, Bee, Colorado, Goliad, Grimes, La Salle and 8 more | 66 min |
Nearby
Mesoscale Discussions in Texas, 2011Every mesoscale discussion in 2011
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.