Alert archive / Texas / Mesoscale Discussions in 2013
Mesoscale Discussion 375
The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2013, 7:35 PM CDT for 49 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Apr 2, 2013, 7:35 PM CDT (00:35 UTC)
- Expired
- Apr 2, 2013, 9:00 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 49 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brown County, TX, Burnet County, TX, Caldwell County, TX, Coke County, TX, Comal County, TX, Concho County, TX, Coryell County, TX, Edwards County, TX, Falls County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Irion County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Lee County, TX, Llano County, TX, Mason County, TX, Maverick County, TX, McCulloch County, TX, McLennan County, TX, Medina County, TX, Menard County, TX, Milam County, TX, Mills County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Tom Green County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 124 km from the middle of the area, began a volume at 00:38 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, 0.6 hours before the alert went out and 159 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
- 1788 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 5.7
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 2, 8:15 PM CDT | Mesoscale Discussion | SPC | Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 13 more | 60 min |
| Apr 2, 10:06 PM CDT | Mesoscale Discussion | SPC | Brazoria, Chambers, Fort Bend, Galveston, Harris | 54 min |
| Apr 2, 10:26 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bexar, Blanco, Comal, Dimmit, Duval and 11 more | 64 min |
| Apr 2, 10:47 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bee, Dimmit, Duval, Frio, Jim Wells and 4 more | 5 hr |
| Apr 3, 1:10 AM CDT | Mesoscale Discussion | SPC | Jasper, Newton, Orange | 3 hr |
| Apr 3, 1:36 AM CDT | Mesoscale Discussion | SPC | Aransas, Austin, Bee, Brazoria, Calhoun, Chambers and 13 more | 114 min |
| Apr 3, 7:59 AM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 20 more | 91 min |
Nearby
Mesoscale Discussions in Texas, 2013Every mesoscale discussion in 2013
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.