Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 1292
The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2012, 6:58 PM CDT for 41 counties in Texas. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Jun 26, 2012, 6:58 PM CDT (23:58 UTC)
- Expired
- Jun 26, 2012, 8:00 PM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 41 counties
Atascosa County, TX, Austin County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Harris County, TX, Hays County, TX, Houston County, TX, Jackson County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Liberty County, TX, Live Oak County, TX, Madison County, TX, McMullen County, TX, Medina County, TX, Montgomery County, TX, Polk County, TX, San Jacinto County, TX, Travis County, TX, Trinity County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wilson County, TX
The radar
The Ft Hood radar (KGRK), 137 km from the middle of the area, began a volume at 00:03 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
Corpus Christi, TX (KCRP), launched 12:00Z, 12.0 hours before the alert went out and 240 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
- 1292 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 1814 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 |
|---|---|---|---|---|
| Jun 26, 2:02 PM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bandera, Bastrop, Bee, Bexar and 49 more | 118 min |
| Jun 26, 3:22 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Austin, Bastrop, Bee, Bexar, Brazos and 35 more | 7 hr |
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.