Alert archive / Texas / Mesoscale Discussions in 2019
Mesoscale Discussion 433
The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2019, 2:31 PM CDT for 45 counties in Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Apr 24, 2019, 2:31 PM CDT (19:31 UTC)
- Expired
- Apr 24, 2019, 4:00 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 45 counties
Atascosa County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Falls County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, La Salle County, TX, Lampasas County, TX, Lavaca County, TX, Lee County, TX, Live Oak County, TX, Llano County, TX, McMullen County, TX, Medina County, TX, Milam County, TX, Robertson County, TX, Travis County, TX, Uvalde County, TX, Victoria County, TX, Washington County, TX, Webb County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 9 km from the middle of the area, began a volume at 19:32 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
Corpus Christi, TX (KCRP), launched 12:00Z, 7.5 hours before the alert went out and 238 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
- 1393 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 4.6
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 23, 7:58 PM CDT | Mesoscale Discussion | SPC | Brewster, Culberson, Jeff Davis, Loving, Presidio, Reeves and 2 more | 47 min |
| Apr 23, 8:35 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Crane and 23 more | 55 min |
| Apr 23, 10:06 PM CDT | Mesoscale Discussion | SPC | Bandera, Blanco, Bosque, Brewster, Brown, Burnet and 49 more | 54 min |
| Apr 23, 10:42 PM CDT | Severe Thunderstorm Watch | SPC | Bosque, Brewster, Brown, Coleman, Collin, Comanche and 32 more | 6 hr |
| Apr 23, 11:50 PM CDT | Mesoscale Discussion | SPC | Irion, Reagan, Tom Green | 85 min |
| Apr 24, 2:16 AM CDT | Mesoscale Discussion | SPC | Bosque, Brewster, Brown, Callahan, Coke, Coleman and 27 more | 89 min |
| Apr 24, 10:11 AM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bandera, Bastrop, Bee, Bell and 60 more | 2 hr |
| Apr 24, 11:51 AM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 25 more | 7 hr |
| Apr 24, 3:47 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bastrop, Brazos, Burleson, Cherokee and 19 more | 43 min |
| Apr 24, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | Austin, Brazos, Burleson, Colorado, Grimes, Houston and 10 more | 5 hr |
| Apr 24, 5:23 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Calhoun, Duval, Goliad, Jackson and 9 more | 67 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.