Alert archive / Texas / Mesoscale Discussions in 2019
Mesoscale Discussion 381
The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2019, 11:52 PM CDT for 38 counties in Texas. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2019, 11:52 PM CDT (04:52 UTC)
- Expired
- Apr 18, 2019, 1:15 AM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 38 counties
Atascosa County, TX, Bastrop County, TX, Bee County, TX, Bell County, TX, Bexar County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Ellis County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Hill County, TX, Karnes County, TX, La Salle County, TX, Lavaca County, TX, Lee County, TX, Limestone County, TX, Live Oak County, TX, McLennan County, TX, McMullen County, TX, Medina County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Travis County, TX, Washington County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 45 km from the middle of the area, began a volume at 04:54 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 00:00Z, 4.9 hours before the alert went out and 271 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
- 2282 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.7
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 7:18 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Brown and 37 more | 7 hr |
| Apr 17, 9:30 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Collin, Comanche, Cooke, Coryell and 27 more | 90 min |
| Apr 18, 12:54 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bowie, Brazoria, Brazos and 53 more | 66 min |
| Apr 18, 1:09 AM CDT | Severe Thunderstorm Watch | SPC | Angelina, Bowie, Brazos, Burleson, Camp, Cass and 29 more | 7 hr |
| Apr 18, 3:51 AM CDT | Mesoscale Discussion | SPC | Angelina, Cass, Gregg, Hardin, Harrison, Jasper and 11 more | 114 min |
| Apr 18, 6:36 AM CDT | Mesoscale Discussion | SPC | Jasper, Newton, Orange, Sabine | 84 min |
Nearby
Mesoscale Discussions in Texas, 2019Every mesoscale discussion in 2019
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.