Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 334
The Storm Prediction Center issued this mesoscale discussion at Apr 11, 2020, 12:47 PM CDT for 24 counties in Texas. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- Apr 11, 2020, 12:47 PM CDT (17:47 UTC)
- Expired
- Apr 11, 2020, 2:45 PM CDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 24 counties
Borden County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX
The radar
The Lubbock radar (KLBB), 100 km from the middle of the area, began a volume at 17:49 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
Midland Regional, TX (KMAF), launched 12:00Z, 5.8 hours before the alert went out and 131 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
- 1161 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
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 | Archer, Bosque, Clay, Collin, Cooke, Dallas and 26 more | 2 hr |
| Apr 11, 2:02 PM CDT | Tornado Watch | SPC | Archer, Baylor, Borden, Briscoe, Callahan, Childress and 37 more | 8 hr |
| Apr 11, 3:29 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Borden, Briscoe, Callahan, Childress and 39 more | 61 min |
| Apr 11, 5:35 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bell, Brazos, Burleson, Falls and 14 more | 115 min |
| Apr 11, 5:37 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Bell, Borden, Bosque, Brown and 62 more | 113 min |
Nearby
Mesoscale Discussions in Texas, 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.