Alert archive / Texas / Mesoscale Discussions in 2011
Mesoscale Discussion 2322
The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2011, 5:35 AM CST for 16 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Nov 15, 2011, 5:35 AM CST (11:35 UTC)
- Expired
- Nov 15, 2011, 7:00 AM CST
- In force
- 85 min
- Issued by
- the Storm Prediction Center
Counties Atascosa County, TX, Bexar County, TX, Blanco County, TX, Comal County, TX, Duval County, TX, Frio County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, La Salle County, TX, Live Oak County, TX, McMullen County, TX, Medina County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 130 km from the middle of the area, began a volume at 11:38 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
Del Rio, TX (KDRT), launched 00:00Z, 11.6 hours before the alert went out and 211 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
- 460 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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 |
|---|---|---|---|---|
| Nov 15, 12:02 AM CST | Mesoscale Discussion | SPC | Bandera, Bexar, Dimmit, Edwards, Frio, Kerr and 8 more | 2 hr |
| Nov 15, 2:14 AM CST | Severe Thunderstorm Watch | SPC | Bandera, Dimmit, Edwards, Frio, Gillespie, Kendall and 10 more | 7 hr |
| Nov 15, 6:38 AM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bastrop, Bexar, Blanco, Caldwell, Comal and 10 more | 6 hr |
| Nov 15, 8:57 AM CST | Severe Thunderstorm Watch | SPC | Anderson, Angelina, Austin, Brazoria, Brazos, Burleson and 38 more | 9 hr |
| Nov 15, 10:35 AM CST | Mesoscale Discussion | SPC | Atascosa, Bexar, Blanco, Comal, Duval, Frio and 10 more | 115 min |
| Nov 15, 2:30 PM CST | Mesoscale Discussion | SPC | Angelina, Chambers, Galveston, Hardin, Houston, Jasper and 15 more | 2 hr |
| Nov 15, 3:49 PM CST | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Delta, Fannin, Franklin and 6 more | 116 min |
| Nov 15, 5:44 PM CST | Mesoscale Discussion | SPC | Newton, Orange, Sabine | 61 min |
| Nov 15, 5:56 PM CST | Tornado Watch | SPC | Newton, Orange, Sabine | 7 hr |
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.