Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 12, NWS Brownsville, TX

April 23, 20237 counties in Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Apr 23, 2023, 11:42 AM CDT for 7 counties in 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
Apr 23, 2023, 11:42 AM CDT (16:42 UTC)
Expired
Apr 23, 2023, 12:30 PM CDT
In force
48 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

Counties Brooks County, TX, Hidalgo County, TX, Jim Hogg County, TX, Kenedy County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX

The radar

The Brownsville radar (KBRO), 131 km from the middle of the area, began a volume at 16:44 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 23, 4:54 AM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 4.7 hours before the alert went out and 134 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-pSkew-T log-p diagram, Brownsville Intl, TX at 12:00Z on 2023-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2723 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 12:00Z on 2023-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
2723 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
3.5
Supercell composite
13.2

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 Apr 23, 6:29 AM CDT, 5 hours 13 minutes earlier.

Area forecast discussion, Apr 23, 6:29 AM CDT, 5 hours 13 minutes before
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Hazardous weather outlook, Apr 23, 5:27 AM CDT, 6 hours 15 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Brownsville TX
527 AM CDT Sun Apr 23 2023

TXZ248>255-351-353>355-451-454-455-241000-
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Kenedy-Northern Hidalgo-
Coastal Willacy-Coastal Cameron-Kenedy Island-Willacy Island-
Cameron Island-
527 AM CDT Sun Apr 23 2023

This Hazardous Weather Outlook is for portions of Deep South
Texas.

.DAY ONE...Today and Tonight

A Severe Thunderstorm Watch is in effect for all of Deep South
Texas and the Rio Grande Valley until at least 2 PM CDT.

A line of strong to severe thunderstorms races southeast this
morning into the afternoon. Damaging winds and large hail are the
main concerns with a tornado or two not completely ruled out.

Heavy rainfall associated with thunderstorms may produce localized
flooding of low-lying and poor-drainage areas today.

There is a High Risk of Rip Currents at the local beaches through
tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional scattered thunderstorms next Wednesday night and
Thursday may be strong to potentially severe producing hail and
gusty winds along with heavy rainfall.

There is a High Risk of Rip Currents at the local beaches through
7 PM CDT Monday.

An elevated rip current risk is possible through the period.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

GMZ130-132-135-150-155-170-175-241000-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
Gulf waters from Port Mansfield to the Rio Grande extending from
20 to 60 nm-
Gulf waters from Baffin Bay to Port Mansfield extending from
20 to 60 nm-
527 AM CDT Sun Apr 23 2023

This Hazardous Weather Outlook is for portions of The Gulf of
Mexico and The Laguna Madre.

.DAY ONE...Today and Tonight

A Severe Thunderstorm Watch is in effect for all of the Lower
Texas Coastal Waters until at least 2 PM CDT.

Scattered strong to potentially severe thunderstorms are possible
later this morning into the afternoon across all coastal waters.
These storms will be capable of producing strong gusty winds, poor
visibility in heavy rainfall, large hail, isolated water spouts
and lightning strikes.

A Small Craft Advisory is in effect for the Gulf of Mexico waters
from 0 to 60 nautical miles offshore until 6 AM CDT Monday.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional strong thunderstorms are possible next Thursday. These
storms will be capable of producing strong gusty winds, poor
visibility in heavy rainfall and lightning strikes.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Special weather statement, Apr 23, 10:37 AM CDT, 1 hour 5 minutes before
Special Weather Statement
National Weather Service Brownsville TX
1037 AM CDT Sun Apr 23 2023

TXZ248-249-231615-
Jim Hogg TX-Zapata TX-
1037 AM CDT Sun Apr 23 2023

...A strong thunderstorm will impact portions of northwestern Jim
Hogg and northeastern Zapata Counties through 1115 AM CDT...

At 1037 AM CDT, Doppler radar was tracking a strong thunderstorm near
Thompsonville, or 18 miles west of Hebbronville, moving southeast at
35 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Escobas, South Fork Estates, Randado and Thompsonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
Deep South Texas.

&&

LAT...LON 2720 9858 2698 9867 2696 9899 2727 9919
      2727 9880 2735 9880 2735 9876
TIME...MOT...LOC 1537Z 313DEG 30KT 2726 9898

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

Mejia
Special weather statement, Apr 23, 11:10 AM CDT, 32 minutes before
Special Weather Statement
National Weather Service Brownsville TX
1110 AM CDT Sun Apr 23 2023

TXZ249-250-231700-
Brooks TX-Jim Hogg TX-
1110 AM CDT Sun Apr 23 2023

...Strong thunderstorms will impact portions of northeastern Jim Hogg
and Brooks Counties through NOON CDT...

At 1109 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Riviera to 6 miles west of Falfurrias
Junior High School to near Las Lomitas. Movement was south-southeast
at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Falfurrias, Encino, Rachal, La Colonia Park, Airport Road Addition,
Falfurrias Junior High School, Pleasant Park, El Coyote Ranch
Airport, Falfurrias Fire Station and Cantu Addition.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
Deep South Texas.

&&

LAT...LON 2727 9852 2726 9803 2688 9799 2682 9823
      2697 9857 2734 9853 2734 9852
TIME...MOT...LOC 1609Z 356DEG 20KT 2733 9782 2722 9826 2735 9863

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Mejia

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 3:11 AM CDTRip Current StatementBROCameron, Kenedy, Willacy3 days
Apr 23, 5:22 AM CDTSmall Craft AdvisoryBRO37 hr
Apr 23, 10:37 AM CDTSpecial Weather StatementBROJim Hogg38 min
Apr 23, 10:55 AM CDTSevere Thunderstorm WarningBROJim Hogg, Zapata50 min
Apr 23, 11:04 AM CDTSevere Thunderstorm Warning Considerable damage threatBROBrooks, Kenedy, Willacy41 min
Apr 23, 11:08 AM CDTSpecial Marine WarningBRO67 min
Apr 23, 11:10 AM CDTSpecial Weather StatementBROBrooks50 min
Apr 23, 11:21 AM CDTAreal Flood AdvisoryBROJim Hogg, Zapata114 min
Apr 23, 12:08 PM CDTAreal Flood AdvisoryBROJim Hogg112 min
Apr 23, 12:17 PM CDTSpecial Marine WarningBRO58 min
Apr 23, 12:17 PM CDTSevere Thunderstorm Warning Considerable damage threatBROBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more43 min
Apr 23, 12:40 PM CDTSevere Thunderstorm Warning Considerable damage threatBROCameron, Hidalgo, Willacy50 min
Apr 23, 12:54 PM CDTSpecial Weather StatementBROHidalgo, Starr36 min
Apr 23, 1:01 PM CDTSpecial Weather StatementBROStarr29 min
Apr 23, 1:09 PM CDTSpecial Marine WarningBRO96 min
Apr 23, 1:09 PM CDTTornado WarningBROCameron22 min
Apr 23, 1:21 PM CDTSevere Thunderstorm Warning Considerable damage threatBROHidalgo, Starr24 min
Apr 23, 1:29 PM CDTSevere Thunderstorm Warning Destructive damage threatBROCameron, Willacy46 min
Apr 23, 1:32 PM CDTSpecial Marine WarningBRO28 min
Apr 23, 1:35 PM CDTTornado WarningBROCameron25 min
Apr 23, 1:44 PM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Willacy2 hr
Apr 23, 1:50 PM CDTSpecial Marine WarningBRO3 min
Apr 23, 1:57 PM CDTAreal Flood AdvisoryBROCameron2 hr
Apr 23, 2:01 PM CDTAreal Flood AdvisoryBROHidalgo3 hr
Apr 23, 2:09 PM CDTAreal Flood AdvisoryBROStarr66 min
Apr 23, 2:10 PM CDTSpecial Weather StatementBROCameron35 min
Apr 23, 2:21 PM CDTSpecial Marine WarningBRO24 min
Apr 23, 2:45 PM CDTSpecial Marine WarningBRO30 min
Apr 23, 2:57 PM CDTSpecial Marine WarningBRO2 hr
Apr 23, 4:20 PM CDTSpecial Marine WarningBRO115 min
Apr 23, 4:59 PM CDTSpecial Marine WarningBRO91 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023Every severe thunderstorm warning in 2023

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.