Alert archive / Texas / Mesoscale Discussions in 2022
Mesoscale Discussion 596
The Storm Prediction Center issued this mesoscale discussion at Apr 30, 2022, 3:10 PM CDT for 40 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2022, 3:10 PM CDT (20:10 UTC)
- Expired
- Apr 30, 2022, 5:45 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
All 40 counties
Anderson County, TX, Angelina 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, Comal County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gillespie County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hays County, TX, Henderson County, TX, Houston County, TX, Kendall County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, Milam County, TX, Nacogdoches County, TX, Polk County, TX, Robertson County, TX, Rusk County, TX, San Augustine County, TX, San Jacinto County, TX, Travis County, TX, Trinity County, TX, Walker County, TX, Washington County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 76 km from the middle of the area, began a volume at 20:11 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, 8.2 hours before the alert went out and 216 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
- 2394 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 330 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.1
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 30, 2:19 PM CDT | Mesoscale Discussion | SPC | Harrison, Marion, Panola, Shelby | 2 hr |
| Apr 30, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Angelina, Cass, Cherokee, Gregg, Harrison, Marion and 8 more | 9 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.