Alert archive / Texas / Mesoscale Discussions in 2026

Mesoscale Discussion 702

May 11, 202610 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 11, 2026, 12:50 AM CDT for 10 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: May 11, 2026, 12:50 AM CDT (05:50 UTC)
Expired: May 11, 2026, 2:15 AM CDT
In force: 85 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 198

Counties Bee County, TX, Brooks County, TX, Duval County, TX, Jim Hogg County, TX, Jim Wells County, TX, Kleberg County, TX, Nueces County, TX, San Patricio County, TX, Webb County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 135 km from the middle of the area, began a volume at 05:49 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 00:00Z, 5.8 hours before the alert went out and 152 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: 1792 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

Issued	Product	Office	Counties	Lasted
May 10, 9:51 PM CDT	Mesoscale Discussion	SPC	Atascosa, Bandera, Bastrop, Bexar, Caldwell, Comal and 18 more	2 hr
May 10, 10:28 PM CDT	Severe Thunderstorm Watch	SPC	Aransas, Austin, Bee, Brazoria, Brazos, Burleson and 24 more	7 hr
May 11, 1:31 AM CDT	Mesoscale Discussion	SPC	Austin, Fort Bend, Grimes, Harris, Montgomery, Waller	89 min

Nearby

Mesoscale Discussions in Texas, 2026 Every mesoscale discussion in 2026

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.