Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 652
The Storm Prediction Center issued this mesoscale discussion at May 20, 2020, 9:17 PM CDT for 38 counties in Texas. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- May 20, 2020, 9:17 PM CDT (02:17 UTC)
- Expired
- May 20, 2020, 11:15 PM CDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 196
All 38 counties
Armstrong County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Coke County, TX, Concho County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hall County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, Kimble County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Menard County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Randall County, TX, Runnels County, TX, Schleicher County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Sutton County, TX, Swisher County, TX, Taylor County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 136 km from the middle of the area, began a volume at 02:18 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 nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 2.3 hours before the alert went out and 137 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
- 152 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 3871 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 22 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 |
|---|---|---|---|---|
| May 20, 7:12 PM CDT | Mesoscale Discussion | SPC | Borden, Coke, Crockett, Crosby, Dawson, Dickens and 18 more | 2 hr |
| May 21, 5:13 PM CDT | Mesoscale Discussion | SPC | Borden, Callahan, Coke, Concho, Cottle, Crosby and 23 more | 92 min |
| May 21, 5:47 PM CDT | Severe Thunderstorm Watch | SPC | Callahan, Childress, Coke, Coleman, Concho, Cottle and 21 more | 8 hr |
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.