Alert archive / Texas / Mesoscale Discussions in 2025
Mesoscale Discussion 2124
The Storm Prediction Center issued this mesoscale discussion at Sep 23, 2025, 3:40 PM CDT for 15 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 23, 2025, 3:40 PM CDT (20:40 UTC)
- Expired
- Sep 23, 2025, 5:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 40%
Counties Callahan County, TX, Comanche County, TX, Denton County, TX, Eastland County, TX, Erath County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Palo Pinto County, TX, Parker County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 70 km from the middle of the area, began a volume at 20:42 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
Norman, OK (KOUN), launched 12:00Z, 8.7 hours before the alert went out and 287 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
- 1228 J/kg
- Mixed-layer CIN
- -270 J/kg
- Mixed-layer LCL
- 1413 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 268 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Sep 23, 1:31 PM CDT | Mesoscale Discussion | SPC | Fannin, Grayson | 119 min |
| Sep 23, 3:23 PM CDT | Severe Thunderstorm Watch | SPC | Bowie, Cooke, Fannin, Grayson, Lamar, Montague and 1 more | 9 hr |
Nearby
Mesoscale Discussions in Texas, 2025Every mesoscale discussion in 2025
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.