Alert archive / Texas / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 15, NWS Brownsville, TX

May 20, 2026Brooks County, Kenedy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 20, 2026, 5:04 AM CDT for Brooks County, Kenedy County, Texas. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 20, 2026, 5:04 AM CDT (10:04 UTC)
Expired: May 20, 2026, 5:45 AM CDT
In force: 41 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brooks County, TX, Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 98 km from the middle of the area, began a volume at 10:04 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

Del Rio, TX (KDRT), launched 00:00Z, 10.1 hours before the alert went out and 390 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: 3290 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: -24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 20, 1:00 AM CDT, 4 hours 4 minutes earlier.

Area forecast discussion, May 20, 1:00 AM CDT, 4 hours 4 minutes before

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The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 20, 5:07 AM CDT	Special Marine Warning	BRO		53 min
May 20, 5:20 AM CDT	Special Weather Statement	BRO	Brooks	40 min
May 20, 5:43 AM CDT	Severe Thunderstorm Warning	BRO	Kenedy	47 min
May 20, 5:51 AM CDT	Special Marine Warning	BRO		84 min
May 20, 6:04 AM CDT	Special Weather Statement	BRO	Brooks	41 min
May 20, 6:27 AM CDT	Severe Thunderstorm Warning	BRO	Cameron, Kenedy, Willacy	48 min
May 20, 6:44 AM CDT	Special Weather Statement	BRO	Willacy	46 min
May 20, 6:48 AM CDT	Special Marine Warning	BRO		57 min
May 20, 7:09 AM CDT	Severe Thunderstorm Warning	BRO	Cameron	51 min
May 20, 7:15 AM CDT	Special Weather Statement	BRO	Cameron	45 min
May 20, 7:22 AM CDT	Severe Thunderstorm Warning	BRO	Cameron, Willacy	38 min
May 20, 7:43 AM CDT	Special Marine Warning	BRO		47 min
May 20, 7:54 AM CDT	Severe Thunderstorm Warning	BRO	Cameron, Willacy	25 min
May 20, 8:22 AM CDT	Special Weather Statement	BRO	Cameron	38 min
May 20, 8:27 AM CDT	Special Marine Warning	BRO		33 min

Nearby

Severe Thunderstorm Warnings in Texas, 2026 Every severe thunderstorm warning 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.