Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 338
The Storm Prediction Center issued this mesoscale discussion at Apr 11, 2020, 5:37 PM CDT for 10 counties in Oklahoma; 68 counties in Texas. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Apr 11, 2020, 5:37 PM CDT (22:37 UTC)
- Expired
- Apr 11, 2020, 7:30 PM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
All 78 counties
Comanche County, OK, Cotton County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Love County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Bell County, TX, Borden County, TX, Bosque County, TX, Brown County, TX, Callahan County, TX, Childress County, TX, Clay County, TX, Coke County, TX, Coleman County, TX, Collingsworth County, TX, Comanche County, TX, Concho County, TX, Cooke County, TX, Coryell County, TX, Cottle County, TX, Crosby County, TX, Dallas County, TX, Denton County, TX, Dickens County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hall County, TX, Hamilton County, TX, Hardeman County, TX, Haskell County, TX, Hill County, TX, Hood County, TX, Howard County, TX, Irion County, TX, Jack County, TX, Johnson County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lampasas County, TX, McCulloch County, TX, McLennan County, TX, Mills County, TX, Mitchell County, TX, Montague County, TX, Motley County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Runnels County, TX, San Saba County, TX, Scurry County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Tarrant County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 61 km from the middle of the area, began a volume at 22:41 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, 10.6 hours before the alert went out and 211 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 976 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 271 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 11, 10:10 AM CDT | Mesoscale Discussion | SPC | Love | 2 hr |
| Apr 11, 2:02 PM CDT | Tornado Watch | SPC | Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more | 8 hr |
| Apr 11, 3:29 PM CDT | Mesoscale Discussion | SPC | Carter, Comanche, Cotton, Garvin, Grady, Greer and 8 more | 61 min |
| Apr 11, 3:43 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Garfield, Grant, Kay, Kingfisher and 5 more | 2 hr |
| Apr 11, 12:47 PM CDT | Mesoscale Discussion | SPC | Borden, Cottle, Crosby, Dawson, Dickens, Fisher and 18 more | 118 min |
| Apr 11, 5:35 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bell, Brazos, Burleson, Falls and 14 more | 115 min |
Nearby
Mesoscale Discussions in Texas, 2020Mesoscale Discussions in Oklahoma, 2020Every mesoscale discussion in 2020
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.