Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Brownsville, TX

May 12, 2021Kenedy County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 12, 2021, 1:00 AM CDT for Kenedy County, Texas. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 12, 2021, 1:00 AM CDT (06:00 UTC)
Expired
May 12, 2021, 2:00 AM CDT
In force
60 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 97 km from the middle of the area, began a volume at 06:02 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
May 11, 8:34 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 6.0 hours before the alert went out and 92 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, Corpus Christi, TX at 00:00Z on 2021-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2320 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2021-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
2320 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
854 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted.

107 
WUUS54 KBRO 120600
SVRBRO
TXC261-120700-
/O.NEW.KBRO.SV.W.0008.210512T0600Z-210512T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
100 AM CDT Wed May 12 2021

The National Weather Service in Brownsville has issued a

* Severe Thunderstorm Warning for...
  Central Kenedy County in Deep South Texas...

* Until 200 AM CDT.

* At 100 AM CDT, a severe thunderstorm was located near Kenedy County
  Wind Farms, or 16 miles northeast of Armstrong, moving southeast at
  30 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Kenedy County Wind Farms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

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

&&

LAT...LON 2719 9757 2701 9739 2704 9739 2703 9738
      2690 9737 2700 9756 2693 9755 2692 9746
      2691 9752 2689 9746 2680 9751 2676 9734
      2674 9747 2672 9743 2672 9744 2663 9757
      2707 9772
TIME...MOT...LOC 0600Z 317DEG 25KT 2707 9759 

HAIL...1.25IN
WIND...60MPH
 
$$

TOMASELLI
1 follow-up statement
921 
WWUS54 KBRO 120628
SVSBRO

Severe Weather Statement
National Weather Service Brownsville TX
128 AM CDT Wed May 12 2021

TXC261-120700-
/O.CON.KBRO.SV.W.0008.000000T0000Z-210512T0700Z/
Kenedy TX-
128 AM CDT Wed May 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR CENTRAL KENEDY COUNTY...

At 128 AM CDT, a severe thunderstorm was located 10 miles southeast
of Kenedy County Wind Farms, or 21 miles east of Armstrong, moving
southeast at 30 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Kenedy County Wind Farms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 2719 9757 2701 9739 2704 9739 2703 9738
      2690 9737 2700 9756 2693 9755 2692 9746
      2691 9752 2689 9746 2680 9751 2676 9734
      2674 9747 2672 9743 2672 9744 2663 9757
      2707 9772
TIME...MOT...LOC 0628Z 317DEG 25KT 2693 9744 

HAIL...1.00IN
WIND...<50MPH
 
$$

TOMASELLI

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 8:51 PM CDTSpecial Weather StatementBROZapata39 min
May 11, 9:11 PM CDTSevere Thunderstorm WarningBROJim Hogg, Zapata49 min
May 11, 9:39 PM CDTSpecial Weather StatementBROZapata51 min
May 11, 9:48 PM CDTSevere Thunderstorm WarningBROZapata42 min
May 11, 9:54 PM CDTSevere Thunderstorm WarningBROBrooks, Jim Hogg51 min
May 11, 10:26 PM CDTSevere Thunderstorm WarningBROStarr, Zapata49 min
May 11, 10:45 PM CDTSpecial Weather StatementBROBrooks, Kenedy60 min
May 11, 11:04 PM CDTAreal Flood AdvisoryBROZapata4 hr
May 11, 11:14 PM CDTSevere Thunderstorm WarningBROStarr, Zapata46 min
May 11, 11:21 PM CDTAreal Flood AdvisoryBROJim Hogg, Starr, Zapata4 hr
May 11, 11:22 PM CDTAreal Flood AdvisoryBROJim Hogg, Zapata94 min
May 11, 11:51 PM CDTSpecial Weather StatementBROHidalgo, Kenedy, Starr54 min
May 11, 11:56 PM CDTSevere Thunderstorm WarningBROStarr36 min
May 12, 12:06 AM CDTAreal Flood AdvisoryBROStarr3 hr
May 12, 12:21 AM CDTAreal Flood AdvisoryBROBrooks, Hidalgo, Starr3 hr
May 12, 12:25 AM CDTAreal Flood AdvisoryBROStarr3 hr
May 12, 12:28 AM CDTSpecial Weather StatementBROHidalgo62 min
May 12, 12:38 AM CDTSpecial Weather StatementBROStarr52 min
May 12, 12:44 AM CDTSevere Thunderstorm WarningBROHidalgo, Willacy30 min
May 12, 12:50 AM CDTSpecial Weather StatementBROKenedy55 min
May 12, 1:04 AM CDTSevere Thunderstorm WarningBROCameron, Hidalgo41 min
May 12, 1:12 AM CDTAreal Flood AdvisoryBROHidalgo, Starr3 hr
May 12, 1:12 AM CDTSpecial Marine WarningBRO48 min
May 12, 1:19 AM CDTAreal Flood AdvisoryBROHidalgo, Willacy3 hr
May 12, 1:34 AM CDTSpecial Marine WarningBRO26 min
May 12, 1:40 AM CDTSevere Thunderstorm WarningBROCameron49 min
May 12, 1:46 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo3 hr
May 12, 1:50 AM CDTSevere Thunderstorm WarningBROHidalgo40 min
May 12, 1:53 AM CDTSpecial Marine WarningBRO22 min
May 12, 2:24 AM CDTAreal Flood AdvisoryBROCameron3 hr
May 12, 2:27 AM CDTSpecial Weather StatementBROCameron63 min
May 12, 2:39 AM CDTSpecial Marine WarningBRO41 min
May 12, 2:40 AM CDTSevere Thunderstorm WarningBROCameron34 min
May 12, 2:51 AM CDTSevere Thunderstorm WarningBROCameron39 min
May 12, 3:31 AM CDTSpecial Weather StatementBROCameron59 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021

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.