Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 2054
The Storm Prediction Center issued this mesoscale discussion at Oct 13, 2012, 8:02 PM CDT for 39 counties in Texas. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Oct 13, 2012, 8:02 PM CDT (01:02 UTC)
- Expired
- Oct 13, 2012, 9:30 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 39 counties
Bandera County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Dimmit County, TX, Edwards County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Hill County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, Maverick County, TX, McCulloch County, TX, McLennan County, TX, Medina County, TX, Menard County, TX, Mills County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Sutton County, TX, Tom Green County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 66 km from the middle of the area, began a volume at 01:04 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
Del Rio, TX (KDRT), launched 00:00Z, 1.0 hours before the alert went out and 101 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
- 2651 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1277 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.3
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 |
|---|---|---|---|---|
| Oct 13, 9:37 PM CDT | Mesoscale Discussion | SPC | Bowie, Delta, Fannin, Grayson, Lamar, Red River | 113 min |
| Oct 13, 10:15 PM CDT | Severe Thunderstorm Watch | SPC | Bowie, Fannin, Lamar, Red River | 6 hr |
| Oct 14, 1:16 AM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Coryell, Dallas, Ellis and 16 more | 89 min |
Nearby
Mesoscale Discussions in Texas, 2012Every mesoscale discussion in 2012
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.