Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 191
The Storm Prediction Center issued this mesoscale discussion at Mar 17, 2020, 11:11 PM CDT for 28 counties in Texas. It was in force for 34 min.
The area
The outline as issued.
The facts
- Issued
- Mar 17, 2020, 11:11 PM CDT (04:11 UTC)
- Expired
- Mar 17, 2020, 11:45 PM CDT
- In force
- 34 min
- Issued by
- the Storm Prediction Center
All 28 counties
Archer County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Erath County, TX, Irion County, TX, Jack County, TX, Jones County, TX, Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Palo Pinto County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 49 km from the middle of the area, began a volume at 04:12 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
Fort Worth, TX (KFWD), launched 00:00Z, 4.2 hours before the alert went out and 220 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
- 307 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 659 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 294 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 7.1
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 |
|---|---|---|---|---|
| Mar 17, 7:48 PM CDT | Mesoscale Discussion | SPC | Coke, Concho, Crockett, Fisher, Haskell, Irion and 10 more | 117 min |
| Mar 18, 2:07 AM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Comanche, Dallas, Eastland, Ellis and 13 more | 113 min |
| Mar 18, 2:49 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Clay, Coke and 29 more | 116 min |
| Mar 18, 4:42 PM CDT | Tornado Watch | SPC | Archer, Baylor, Borden, Callahan, Clay, Coke and 39 more | 7 hr |
| Mar 18, 5:37 PM CDT | Mesoscale Discussion | SPC | Jones, Shackelford, Stephens, Throckmorton, Young | 113 min |
| Mar 18, 6:48 PM CDT | Mesoscale Discussion | SPC | Childress, Cottle, Crosby, Dickens, Floyd, Foard and 6 more | 117 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.