Alert archive / Texas / Mesoscale Discussions in 2025

Mesoscale Discussion 488

April 19, 202522 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2025, 7:11 PM CDT for 22 counties in Texas. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Apr 19, 2025, 7:11 PM CDT (00:11 UTC)
Expired
Apr 19, 2025, 8:45 PM CDT
In force
94 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 147
All 22 counties

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, McCulloch County, TX, Mills County, TX, Nolan County, TX, Palo Pinto County, TX, Reagan County, TX, Runnels County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Taylor County, TX, Tom Green County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 56 km from the middle of the area, began a volume at 00:11 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

Fort Worth, TX (KFWD), launched 00:00Z, 0.2 hours before the alert went out and 227 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.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2025-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1192 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2025-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 267 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1192 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
267 m²/s²
0-3 km storm-relative helicity
382 m²/s²
Significant tornado parameter
3.4
Supercell composite
17.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 7:35 PM CDTMesoscale DiscussionSPCCooke, Montague55 min
Apr 19, 8:27 PM CDTMesoscale DiscussionSPCComanche, Denton, Erath, Hood, Palo Pinto, Parker and 3 more93 min
Apr 19, 9:01 PM CDTMesoscale DiscussionSPCCooke, Montague89 min
Apr 19, 9:20 PM CDTMesoscale DiscussionSPCConcho, Irion, Runnels, Tom Green55 min
Apr 19, 9:50 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Borden, Callahan, Coke, Crosby and 28 more5 hr
Apr 19, 10:01 PM CDTTornado WatchSPCBrown, Coleman, Concho, Crockett, Edwards, Gillespie and 12 more7 hr
Apr 19, 10:10 PM CDTMesoscale DiscussionSPCHood, Parker, Wise65 min
Apr 19, 11:33 PM CDTTornado WatchSPCBosque, Collin, Comanche, Cooke, Dallas, Denton and 15 more6 hr
Apr 19, 11:58 PM CDTMesoscale DiscussionSPCConcho, Kimble, McCulloch, Mason, Menard, San Saba and 3 more92 min
Apr 20, 2:01 AM CDTMesoscale DiscussionSPCBrown, Coleman, Comanche, Eastland, Erath, Hamilton and 9 more119 min
Apr 20, 12:03 PM CDTTornado WatchSPCBowie, Cass, Harrison, Marion, Red River9 hr
Apr 20, 12:17 PM CDTMesoscale DiscussionSPCBowie, Cass, Harrison, Marion, Morris, Titus118 min

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.