Alert archive / Texas / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 22, NWS Brownsville, TX

May 21, 2026Hidalgo County, Starr County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 21, 2026, 3:42 AM CDT for Hidalgo County, Starr County, Texas. It was in force for 48 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 21, 2026, 3:42 AM CDT (08:42 UTC)
Expired: May 21, 2026, 4:30 AM CDT
In force: 48 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Hidalgo County, TX, Starr County, TX

The radar

The Brownsville radar (KBRO), 121 km from the middle of the area, began a volume at 08:42 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, 8.7 hours before the alert went out and 178 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: 1962 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.3

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 21, 12:40 AM CDT, 3 hours 2 minutes earlier.

Area forecast discussion, May 21, 12:40 AM CDT, 3 hours 2 minutes before

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In the hours before

Special weather statement, May 20, 11:02 PM CDT, 4 hours 40 minutes before

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Special weather statement, May 21, 2:08 AM CDT, 1 hour 34 minutes before

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Special weather statement, May 21, 2:20 AM CDT, 1 hour 22 minutes before

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Special weather statement, May 21, 2:48 AM CDT, 54 minutes before

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Special weather statement, May 21, 2:52 AM CDT, 50 minutes before

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Special weather statement, May 21, 3:06 AM CDT, 36 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, 8:20 PM CDT	Special Weather Statement	BRO	Starr	40 min
May 20, 9:02 PM CDT	Areal Flood Advisory	BRO	Starr	69 min
May 20, 10:19 PM CDT	Special Weather Statement	BRO	Jim Hogg	41 min
May 20, 11:02 PM CDT	Special Weather Statement	BRO	Jim Hogg	43 min
May 21, 2:08 AM CDT	Special Weather Statement	BRO	Starr	37 min
May 21, 2:15 AM CDT	Areal Flood Advisory	BRO	Zapata	60 min
May 21, 2:20 AM CDT	Special Weather Statement	BRO	Zapata	25 min
May 21, 2:43 AM CDT	Areal Flood Advisory	BRO	Starr, Zapata	2 hr
May 21, 2:48 AM CDT	Special Weather Statement	BRO	Starr	42 min
May 21, 2:52 AM CDT	Special Weather Statement	BRO	Jim Hogg	38 min
May 21, 3:06 AM CDT	Special Weather Statement	BRO	Starr	39 min
May 21, 3:19 AM CDT	Areal Flood Advisory	BRO	Jim Hogg, Zapata	116 min
May 21, 3:26 AM CDT	Severe Thunderstorm Warning	BRO	Hidalgo, Starr	49 min
May 21, 3:36 AM CDT	Areal Flood Advisory	BRO	Hidalgo, Jim Hogg, Starr	114 min
May 21, 3:55 AM CDT	Areal Flood Advisory	BRO	Brooks, Hidalgo, Jim Hogg, Starr	2 hr
May 21, 4:21 AM CDT	Special Weather Statement	BRO	Cameron, Hidalgo, Kenedy, Willacy	54 min
May 21, 4:24 AM CDT	Special Weather Statement	BRO	Brooks, Kenedy	51 min
May 21, 5:05 AM CDT	Special Marine Warning	BRO		115 min
May 21, 5:14 AM CDT	Special Weather Statement	BRO	Cameron, Kenedy, Willacy	46 min
May 21, 6:54 AM CDT	Special Weather Statement	BRO	Starr	51 min
May 21, 6:58 AM CDT	Special Marine Warning	BRO		62 min
May 21, 8:09 AM CDT	Flood Watch	BRO	Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more	62 hr

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.