Alert archive / Texas / Mesoscale Discussions in 2025

Mesoscale Discussion 660

May 2, 2025Beauregard Parish, Vernon Parish, Louisiana; 42 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 2, 2025, 5:35 PM CDT for Beauregard Parish, Vernon Parish, Louisiana; 42 counties in Texas. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued
May 2, 2025, 5:35 PM CDT (22:35 UTC)
Expired
May 2, 2025, 7:30 PM CDT
In force
115 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 211...212
All 44 counties

Beauregard Parish, LA, Vernon Parish, LA, Angelina County, TX, Austin County, TX, Bastrop County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Liberty County, TX, Madison County, TX, Montgomery County, TX, Newton County, TX, Orange County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Trinity County, TX, Tyler County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wilson County, TX

The radar

The Houston radar (KHGX), 109 km from the middle of the area, began a volume at 22:35 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.6 hours before the alert went out and 262 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, Lake Charles Mun, LA at 12:00Z on 2025-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1822 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, Lake Charles Mun, LA at 12:00Z on 2025-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.19395878Sfc1 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
1822 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

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
May 2, 9:39 AM CDTMesoscale DiscussionSPCBienville, Claiborne, East Carroll, Jackson, Lincoln, Madison and 5 more2 hr
May 2, 11:05 AM CDTMesoscale DiscussionSPCCaddo, De Soto, Sabine115 min
May 2, 12:10 PM CDTSevere Thunderstorm WatchSPCAcadia, Allen, Avoyelles, Beauregard, Bienville, Bossier and 31 more9 hr
May 2, 1:47 PM CDTMesoscale DiscussionSPCAvoyelles, Beauregard, Caldwell, Catahoula, Concordia, East Carroll and 16 more118 min
May 2, 3:54 PM CDTMesoscale DiscussionSPCBienville, Caldwell, Catahoula, Claiborne, Concordia, De Soto and 20 more96 min
May 1, 9:14 PM CDTMesoscale DiscussionSPCHardeman91 min
May 1, 11:00 PM CDTSevere Thunderstorm WatchSPCClay, Cooke, Fannin, Grayson, Hardeman, Lamar and 3 more8 hr
May 2, 2:03 AM CDTMesoscale DiscussionSPCWichita117 min
May 2, 12:38 PM CDTSevere Thunderstorm WatchSPCAnderson, Austin, Bastrop, Bell, Bexar, Blanco and 54 more9 hr
May 2, 1:23 PM CDTMesoscale DiscussionSPCCrockett, Edwards, Kerr, Kimble, Kinney, Mason and 6 more2 hr
May 2, 2:05 PM CDTMesoscale DiscussionSPCAnderson, Austin, Bastrop, Bell, Bexar, Blanco and 46 more85 min
May 2, 3:10 PM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Crockett, Dimmit, Edwards, Frio and 10 more8 hr
May 2, 3:44 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bandera, Bastrop, Bell, Bexar and 55 more91 min

Nearby

Mesoscale Discussions in Texas, 2025Mesoscale Discussions in Louisiana, 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.