Alert archive / Texas / Mesoscale Discussions in 2025

Mesoscale Discussion 1019

May 27, 202510 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 27, 2025, 11:26 PM CDT for 10 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 27, 2025, 11:26 PM CDT (04:26 UTC)
Expired: May 28, 2025, 1:30 AM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 80%

Counties Brooks County, TX, Dimmit County, TX, Duval County, TX, Jim Hogg County, TX, Jim Wells County, TX, Kleberg County, TX, La Salle County, TX, McMullen County, TX, Nueces County, TX, Webb County, TX

The radar

The Corpus Christi radar (KCRP), 132 km from the middle of the area, began a volume at 04:31 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.

Severe Thunderstorm Watch 340May 28, 12:45 AM CDT

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.4 hours before the alert went out and 149 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1475 J/kg
Mixed-layer CIN: -116 J/kg
Mixed-layer LCL: 1011 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.1

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.

Issued	Product	Office	Counties	Lasted
May 27, 7:41 PM CDT	Mesoscale Discussion	SPC	Brewster, Crane, Crockett, Ector, Loving, Midland and 8 more	64 min
May 27, 9:57 PM CDT	Mesoscale Discussion	SPC	Andrews, Coke, Concho, Crane, Crockett, Ector and 16 more	2 hr
May 27, 11:38 PM CDT	Mesoscale Discussion	SPC	Brooks, Dimmit, Duval, Jim Hogg, Jim Wells, Kleberg and 4 more	2 hr
May 28, 12:44 AM CDT	Severe Thunderstorm Watch	SPC	Bee, Brooks, Cameron, Dimmit, Duval, Hidalgo and 16 more	7 hr
May 28, 3:37 AM CDT	Mesoscale Discussion	SPC	Bandera, Bexar, Caldwell, Comal, Gonzales, Guadalupe and 4 more	83 min
May 28, 12:20 PM CDT	Mesoscale Discussion	SPC	Bell, Blanco, Brown, Burnet, Callahan, Coleman and 21 more	115 min
May 28, 12:53 PM CDT	Mesoscale Discussion	SPC	Dallam, Sherman	3 hr
May 28, 2:04 PM CDT	Severe Thunderstorm Watch	SPC	Dallam, Hartley, Moore, Sherman	7 hr
May 28, 2:15 PM CDT	Tornado Watch	SPC	Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts	8 hr
May 28, 2:43 PM CDT	Severe Thunderstorm Watch	SPC	Bastrop, Bell, Blanco, Bosque, Brown, Burnet and 35 more	7 hr
May 28, 3:38 PM CDT	Mesoscale Discussion	SPC	Brewster, Jeff Davis, Pecos, Presidio, Reeves, Ward	97 min
May 28, 3:58 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Brown, Burnet, Callahan, Coleman and 20 more	92 min
May 28, 6:26 PM CDT	Mesoscale Discussion	SPC	Bell, Blanco, Brown, Burnet, Coleman, Concho and 9 more	94 min

Nearby

Mesoscale Discussions in Texas, 2025 Every 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.