Alert archive / Texas / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 3, NWS Brownsville, TX

March 7, 2026Starr County, Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Mar 7, 2026, 10:51 PM CST for Starr County, Zapata County, Texas. It was in force for 39 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: Mar 7, 2026, 10:51 PM CST (04:51 UTC)
Expired: Mar 7, 2026, 11:30 PM CST
In force: 39 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Starr County, TX, Zapata County, TX

The radar

The Brownsville radar (KBRO), 181 km from the middle of the area, began a volume at 04:50 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, 4.9 hours before the alert went out and 191 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: 1719 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

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 Mar 7, 10:12 PM CST, 39 minutes earlier.

Area forecast discussion, Mar 7, 10:12 PM CST, 39 minutes before

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In the hours before

Special weather statement, Mar 7, 9:13 PM CST, 1 hour 38 minutes before

Special Weather Statement
National Weather Service Brownsville TX
913 PM CST Sat Mar 7 2026

TXZ248-080400-
Zapata TX-
913 PM CST Sat Mar 7 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHERN ZAPATA COUNTY THROUGH
1000 PM CST...

At 913 PM CST, Doppler radar was tracking a cluster of strong
thunderstorms 11 miles north of Zapata County Airport, or 12 miles
northeast of San Ygnacio, moving east at 15 mph.

HAZARD...Wind gusts up to 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
San Ygnacio, Bustamante, and Zapata County Airport.

This includes US Highway 83 between mile markers 752 and 754.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 2727 9921 2727 9896 2726 9895 2691 9907
      2703 9944 2704 9944
TIME...MOT...LOC 0313Z 281DEG 11KT 2713 9926

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Caceres

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 8:33 PM CST	Severe Thunderstorm Warning	BRO	Zapata	42 min
Mar 7, 9:13 PM CST	Special Weather Statement	BRO	Zapata	47 min
Mar 7, 9:21 PM CST	Severe Thunderstorm Warning	BRO	Zapata	39 min
Mar 7, 11:30 PM CST	Severe Thunderstorm Warning Destructive damage threat	BRO	Starr	45 min
Mar 8, 12:08 AM CST	Severe Thunderstorm Warning Destructive damage threat	BRO	Starr	37 min
Mar 8, 12:43 AM CST	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	32 min
Mar 8, 12:51 AM CST	Special Weather Statement	BRO	Starr	24 min
Mar 8, 5:33 PM CDT	Areal Flood Advisory	BRO	Willacy	69 min
Mar 8, 6:10 PM CDT	Areal Flood Advisory	BRO	Cameron	38 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.