Alert archive / Texas / Mesoscale Discussions in 2014
Mesoscale Discussion 978
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2014, 9:46 PM CDT for 39 counties in Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2014, 9:46 PM CDT (02:46 UTC)
- Expired
- Jun 12, 2014, 11:15 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 39 counties
Atascosa County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Jackson County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Lampasas County, TX, Lavaca County, TX, Lee County, TX, Live Oak County, TX, Llano County, TX, Mason County, TX, Medina County, TX, Menard County, TX, Real County, TX, San Saba County, TX, Travis County, TX, Uvalde County, TX, Victoria County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 45 km from the middle of the area, began a volume at 02:46 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 (KDLF), launched 00:00Z, 2.8 hours before the alert went out and 243 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
- 2147 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 2906 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.1
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 12, 11:44 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bee, DeWitt, Dimmit, Frio, Goliad and 10 more | 3 hr |
| Jun 13, 1:41 AM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Calhoun, Duval, Goliad, Jackson and 9 more | 94 min |
| Jun 13, 1:48 PM CDT | Mesoscale Discussion | SPC | Culberson, Jeff Davis, Loving, Reeves | 57 min |
| Jun 13, 5:09 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bee, Frio, La Salle, Live Oak and 5 more | 66 min |
| Jun 13, 6:12 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 38 more | 63 min |
Nearby
Mesoscale Discussions in Texas, 2014Every mesoscale discussion in 2014
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.