Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 604
The Storm Prediction Center issued this mesoscale discussion at May 15, 2020, 5:29 PM CDT for 43 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 15, 2020, 5:29 PM CDT (22:29 UTC)
- Expired
- May 15, 2020, 7:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 43 counties
Archer County, TX, Baylor County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Crockett County, TX, Eastland County, TX, Edwards County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jack County, TX, Jones County, TX, Kent County, TX, Kimble County, TX, Knox County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Wichita County, TX, Young County, TX
The radar
The San Angelo radar (KSJT), 58 km from the middle of the area, began a volume at 22:29 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, 10.5 hours before the alert went out and 181 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
- 2781 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 151 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 15, 1:08 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Fannin, Foard and 7 more | 2 hr |
| May 15, 1:39 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Cooke, Fannin, Foard and 8 more | 8 hr |
| May 15, 2:30 PM CDT | Mesoscale Discussion | SPC | Andrews, Borden, Brewster, Brown, Callahan, Childress and 54 more | 2 hr |
| May 15, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Bandera, Borden, Brewster, Brown, Callahan and 66 more | 7 hr |
| May 15, 3:36 PM CDT | Mesoscale Discussion | SPC | Wichita | 84 min |
| May 15, 6:59 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Grayson, Hardeman and 4 more | 2 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.