Alert archive / Texas / Mesoscale Discussions in 2019
Mesoscale Discussion 263
The Storm Prediction Center issued this mesoscale discussion at Apr 6, 2019, 9:08 AM CDT for 52 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2019, 9:08 AM CDT (14:08 UTC)
- Expired
- Apr 6, 2019, 12:15 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 52 counties
Anderson County, TX, Angelina County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Cherokee County, TX, Colorado County, TX, Comal County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gillespie County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hardin County, TX, Harris County, TX, Hays County, TX, Houston County, TX, Kendall County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Liberty County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Montgomery County, TX, Nacogdoches County, TX, Polk County, TX, Robertson County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Travis County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 51 km from the middle of the area, began a volume at 14:09 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
Fort Worth, TX (KFWD), launched 12:00Z, 2.1 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
- 1268 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.6
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 5, 7:10 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Borden, Briscoe, Castro, Cochran and 42 more | 2 hr |
| Apr 6, 1:41 AM CDT | Mesoscale Discussion | SPC | Andrews, Borden, Childress, Coke, Cottle, Crane and 25 more | 94 min |
| Apr 6, 7:58 AM CDT | Mesoscale Discussion | SPC | Archer, Brown, Clay, Coleman, Comanche, Cooke and 11 more | 92 min |
| Apr 6, 10:35 AM CDT | Tornado Watch | SPC | Anderson, Angelina, Bastrop, Bell, Blanco, Brazos and 47 more | 7 hr |
| Apr 6, 1:09 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bastrop, Bell, Blanco, Bosque and 44 more | 96 min |
| Apr 6, 3:03 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bastrop, Bell, Blanco, Bosque and 44 more | 87 min |
| Apr 6, 4:48 PM CDT | Mesoscale Discussion | SPC | Angelina, Brazos, Burleson, Cherokee, Grimes, Houston and 17 more | 117 min |
| Apr 6, 5:54 PM CDT | Tornado Watch | SPC | Angelina, Brazos, Burleson, Cherokee, Grimes, Houston and 12 more | 4 hr |
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.