Alert archive / Texas / Mesoscale Discussions in 2022
Mesoscale Discussion 458
The Storm Prediction Center issued this mesoscale discussion at Apr 12, 2022, 3:07 PM CDT for 35 counties in Texas. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Apr 12, 2022, 3:07 PM CDT (20:07 UTC)
- Expired
- Apr 12, 2022, 5:00 PM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch likely
- Chance of a watch
- 80%
All 35 counties
Anderson County, TX, Bastrop County, TX, Bell County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Coryell County, TX, Dallas County, TX, Ellis County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Johnson County, TX, Kaufman County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Rockwall County, TX, Tarrant County, TX, Travis County, TX, Van Zandt County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 43 km from the middle of the area, began a volume at 20:07 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, 8.1 hours before the alert went out and 192 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
- 2188 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 12, 1:01 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coleman, Comanche, Concho and 20 more | 89 min |
| Apr 12, 1:32 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coleman, Comanche, Concho, Eastland and 19 more | 6 hr |
| Apr 12, 2:18 PM CDT | Mesoscale Discussion | SPC | Bandera, Edwards, Frio, Gillespie, Kendall, Kerr and 9 more | 57 min |
| Apr 12, 4:11 PM CDT | Tornado Watch | SPC | Anderson, Bell, Blanco, Bosque, Burnet, Collin and 26 more | 7 hr |
| Apr 12, 5:32 PM CDT | Mesoscale Discussion | SPC | Bastrop, Bell, Bosque, Caldwell, Comal, Coryell and 20 more | 88 min |
| Apr 12, 6:27 PM CDT | Mesoscale Discussion | SPC | Cameron, Hidalgo | 93 min |
| Apr 12, 6:59 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bowie, Camp, Cass, Cherokee and 17 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2022Every mesoscale discussion in 2022
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.