Alert archive / Texas / Mesoscale Discussions in 2023
Mesoscale Discussion 615
The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2023, 4:46 PM CDT for 22 counties in Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2023, 4:46 PM CDT (21:46 UTC)
- Expired
- Apr 25, 2023, 6:15 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 40%
All 22 counties
Atascosa County, TX, Bastrop County, TX, Bee County, TX, Caldwell County, TX, Colorado County, TX, DeWitt County, TX, Duval County, TX, Fayette County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Jackson County, TX, Jim Wells County, TX, Karnes County, TX, Lavaca County, TX, Live Oak County, TX, McMullen County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wilson County, TX
The radar
The Corpus Christi radar (KCRP), 92 km from the middle of the area, began a volume at 21:48 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
Corpus Christi, TX (KCRP), launched 12:00Z, 9.8 hours before the alert went out and 105 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
- 420 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
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 25, 3:01 PM CDT | Mesoscale Discussion | SPC | Dallam, Deaf Smith, Hartley, Oldham, Parmer | 119 min |
| Apr 25, 3:43 PM CDT | Mesoscale Discussion | SPC | Baylor, Briscoe, Childress, Collingsworth, Cottle, Crosby and 18 more | 2 hr |
| Apr 25, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 33 more | 7 hr |
| Apr 25, 6:51 PM CDT | Mesoscale Discussion | SPC | Armstrong, Borden, Briscoe, Callahan, Carson, Castro and 40 more | 84 min |
| Apr 25, 6:54 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Fisher, Haskell and 6 more | 4 hr |
Nearby
Mesoscale Discussions in Texas, 2023Every mesoscale discussion in 2023
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.