Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 27, NWS Brownsville, TX

May 19, 20215 counties in Texas

NWS Brownsville, TX issued this severe thunderstorm warning at May 19, 2021, 8:58 AM CDT for 5 counties in Texas. It was in force for 47 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 19, 2021, 8:58 AM CDT (13:58 UTC)
Expired
May 19, 2021, 9:45 AM CDT
In force
47 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Brooks County, TX, Cameron County, TX, Hidalgo County, TX, Kenedy County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 99 km from the middle of the area, began a volume at 13:59 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 19, 5:24 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Brownsville Intl, TX (KBRO), launched 12:00Z, 2.0 hours before the alert went out and 101 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 2021-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3667 joules per kilogram.LCLEL10008507005003002001001 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, Brownsville Intl, TX at 12:00Z on 2021-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.193958Sfc1 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
3667 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
504 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3

Open this sounding in Storm Lab

The text

As transmitted.

037 
WUUS54 KBRO 191358
SVRBRO
TXC047-061-215-261-489-191445-
/O.NEW.KBRO.SV.W.0027.210519T1358Z-210519T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
858 AM CDT Wed May 19 2021

The National Weather Service in Brownsville has issued a

* Severe Thunderstorm Warning for...
  Kenedy County in Deep South Texas...
  Hidalgo County in Deep South Texas...
  Northwestern Cameron County in Deep South Texas...
  Eastern Brooks County in Deep South Texas...
  Willacy County in Deep South Texas...

* Until 945 AM CDT.

* At 858 AM CDT, severe thunderstorms were located along a line
  extending from 7 miles east of Airport Road Addition to 7 miles
  north of Lasara to Santa Ana National Wildlife Refuge, moving east
  at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Edinburg, Mission, Pharr, Harlingen, Weslaco, San Juan, San Benito,
  Alamo, Donna and Mercedes.

This includes the following highways...
 Interstate Highway 69 E between mile markers 15 and 51.
 Interstate Highway 69 C between mile markers 1 and 12.
 US Highway 77 between mile markers 710 and 762.
 US Highway 281 between mile markers 710 and 764.
 US Highway 281 between mile markers 784 and 828.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Intense thunderstorm lines can produce brief tornadoes and 
widespread significant wind damage. Although a tornado is not 
immediately likely, it is best to move to an interior room on the 
lowest floor of a building. These storms may cause serious injury 
and significant property damage.

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

&&

LAT...LON 2726 9742 2694 9747 2695 9747 2700 9749
      2695 9749 2700 9756 2684 9757 2678 9746
      2681 9746 2644 9744 2645 9741 2598 9762
      2607 9786 2606 9820 2616 9839 2663 9824
      2726 9822 2721 9797 2728 9779
TIME...MOT...LOC 1358Z 282DEG 28KT 2723 9797 2657 9792 2609 9815 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Farris
2 follow-up statements
962 
WWUS54 KBRO 191430
SVSBRO

Severe Weather Statement
National Weather Service Brownsville TX
930 AM CDT Wed May 19 2021

TXC047-191440-
/O.CAN.KBRO.SV.W.0027.000000T0000Z-210519T1445Z/
Brooks TX-
930 AM CDT Wed May 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BROOKS COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 PM CDT for
Deep South Texas.

LAT...LON 2726 9742 2694 9747 2695 9747 2700 9749
      2695 9749 2700 9756 2684 9757 2678 9746
      2681 9746 2644 9744 2645 9741 2598 9762
      2607 9786 2606 9820 2607 9822 2662 9800
      2724 9788 2728 9779
TIME...MOT...LOC 1430Z 282DEG 28KT 2718 9772 2652 9767 2604 9790 

$$

TXC061-215-261-489-191445-
/O.CON.KBRO.SV.W.0027.000000T0000Z-210519T1445Z/
Kenedy TX-Hidalgo TX-Cameron TX-Willacy TX-
930 AM CDT Wed May 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT
FOR KENEDY...EASTERN HIDALGO...NORTHWESTERN CAMERON AND WILLACY
COUNTIES...

At 930 AM CDT, severe thunderstorms were located along a line
extending from near Kenedy County Sheriffs Office to near San Perlita
to near Relampago, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Harlingen, Weslaco, San Juan, San Benito, Alamo, Donna, Mercedes,
Raymondville, La Feria and Elsa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

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

&&

LAT...LON 2726 9742 2694 9747 2695 9747 2700 9749
      2695 9749 2700 9756 2684 9757 2678 9746
      2681 9746 2644 9744 2645 9741 2598 9762
      2607 9786 2606 9820 2607 9822 2662 9800
      2724 9788 2728 9779
TIME...MOT...LOC 1430Z 282DEG 28KT 2718 9772 2652 9767 2604 9790 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Farris
816 
WWUS54 KBRO 191444
SVSBRO

Severe Weather Statement
National Weather Service Brownsville TX
944 AM CDT Wed May 19 2021

TXC061-215-261-489-191454-
/O.EXP.KBRO.SV.W.0027.000000T0000Z-210519T1445Z/
Kenedy TX-Hidalgo TX-Cameron TX-Willacy TX-
944 AM CDT Wed May 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR KENEDY...EASTERN HIDALGO...
NORTHWESTERN CAMERON AND WILLACY COUNTIES WILL EXPIRE AT 945 AM
CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 100 PM CDT for
Deep South Texas.

LAT...LON 2726 9742 2694 9747 2695 9747 2700 9749
      2695 9749 2700 9756 2684 9757 2678 9746
      2681 9746 2644 9744 2645 9741 2598 9762
      2607 9786 2606 9820 2607 9822 2662 9800
      2724 9788 2728 9779
TIME...MOT...LOC 1444Z 282DEG 28KT 2716 9763 2650 9758 2602 9781 

$$

Farris

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 3:30 AM CDTRip Current StatementBROKenedy16 hr
May 19, 4:58 AM CDTSpecial Weather StatementBROJim Hogg32 min
May 19, 5:50 AM CDTSpecial Weather StatementBROJim Hogg40 min
May 19, 5:56 AM CDTSpecial Weather StatementBROZapata34 min
May 19, 6:03 AM CDTSpecial Weather StatementBROStarr42 min
May 19, 6:27 AM CDTSevere Thunderstorm WarningBROJim Hogg, Zapata33 min
May 19, 6:32 AM CDTAreal Flood AdvisoryBROJim Hogg, Starr, Zapata7 hr
May 19, 6:51 AM CDTSevere Thunderstorm WarningBROStarr39 min
May 19, 7:11 AM CDTFlash Flood WarningBROStarr, Zapata2 hr
May 19, 7:11 AM CDTSevere Thunderstorm WarningBROHidalgo, Starr64 min
May 19, 7:12 AM CDTFlash Flood WarningBROJim Hogg, Zapata3 hr
May 19, 7:17 AM CDTFlash Flood WarningBROJim Hogg3 hr
May 19, 7:25 AM CDTAreal Flood AdvisoryBROStarr6 hr
May 19, 7:27 AM CDTAreal Flood AdvisoryBROJim Hogg, Zapata4 hr
May 19, 7:27 AM CDTSevere Thunderstorm WarningBROStarr, Zapata63 min
May 19, 7:34 AM CDTSpecial Weather StatementBROJim Hogg56 min
May 19, 7:42 AM CDTAreal Flood AdvisoryBROKenedy6 hr
May 19, 7:47 AM CDTSevere Thunderstorm WarningBROBrooks, Hidalgo, Jim Hogg, Starr43 min
May 19, 7:51 AM CDTTornado WarningBROBrooks, Hidalgo, Starr24 min
May 19, 8:12 AM CDTTornado WarningBROHidalgo18 min
May 19, 8:15 AM CDTAreal Flood AdvisoryBROHidalgo5 hr
May 19, 8:17 AM CDTAreal Flood AdvisoryBROStarr5 hr
May 19, 8:21 AM CDTSevere Thunderstorm WarningBROBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 1 more39 min
May 19, 8:23 AM CDTSpecial Marine WarningBRO26 min
May 19, 8:26 AM CDTFlash Flood WarningBROJim Hogg113 min
May 19, 8:29 AM CDTAreal Flood AdvisoryBROBrooks, Jim Hogg5 hr
May 19, 8:34 AM CDTAreal Flood AdvisoryBROHidalgo7 hr
May 19, 8:42 AM CDTAreal Flood AdvisoryBROBrooks, Kenedy5 hr
May 19, 8:47 AM CDTTornado WarningBROBrooks13 min
May 19, 9:04 AM CDTAreal Flood AdvisoryBROCameron, Hidalgo, Kenedy, Willacy7 hr
May 19, 9:05 AM CDTTornado WarningBROKenedy, Willacy10 min
May 19, 9:11 AM CDTTornado WarningBROKenedy, Willacy19 min
May 19, 9:14 AM CDTSpecial Marine WarningBRO61 min
May 19, 9:21 AM CDTAreal Flood AdvisoryBROKenedy5 hr
May 19, 9:27 AM CDTSpecial Marine WarningBRO63 min
May 19, 9:28 AM CDTTornado WarningBROKenedy17 min
May 19, 9:43 AM CDTSpecial Weather StatementBROCameron, Kenedy, Willacy47 min
May 19, 9:44 AM CDTTornado WarningBROWillacy16 min
May 19, 9:48 AM CDTFlash Flood WarningBROHidalgo4 hr
May 19, 9:48 AM CDTSpecial Marine WarningBRO57 min
May 19, 9:50 AM CDTFlash Flood WarningBROHidalgo4 hr
May 19, 10:10 AM CDTSpecial Marine WarningBRO65 min
May 19, 10:10 AM CDTSpecial Weather StatementBROHidalgo50 min
May 19, 10:11 AM CDTAreal Flood AdvisoryBROCameron, Willacy7 hr
May 19, 10:15 AM CDTFlash Flood WarningBROHidalgo, Willacy4 hr
May 19, 10:18 AM CDTFlash Flood WarningBROHidalgo5 hr
May 19, 10:21 AM CDTFlash Flood WarningBROWillacy5 hr
May 19, 10:24 AM CDTFlash Flood WarningBROCameron, Hidalgo, Willacy5 hr
May 19, 10:27 AM CDTFlash Flood WarningBROCameron4 hr
May 19, 10:28 AM CDTSpecial Weather StatementBROCameron, Willacy47 min
May 19, 10:29 AM CDTFlash Flood WarningBROCameron, Hidalgo4 hr
May 19, 10:29 AM CDTSpecial Marine WarningBRO46 min
May 19, 10:42 AM CDTSpecial Marine WarningBRO48 min
May 19, 10:51 AM CDTSpecial Marine WarningBRO39 min
May 19, 11:00 AM CDTFlash Flood WarningBROCameron, Willacy5 hr
May 19, 11:06 AM CDTSpecial Marine WarningBRO24 min
May 19, 11:12 AM CDTSpecial Marine WarningBRO18 min
May 19, 11:21 AM CDTSpecial Weather StatementBROCameron24 min
May 19, 11:25 AM CDTSpecial Marine WarningBRO50 min
May 19, 11:30 AM CDTFlash Flood WarningBROCameron5 hr
May 19, 11:34 AM CDTAreal Flood AdvisoryBROCameron3 hr
May 19, 12:10 PM CDTSpecial Marine WarningBRO50 min
May 19, 12:15 PM CDTFlash Flood WarningBROCameron4 hr
May 19, 2:38 PM CDTCoastal Flood AdvisoryBROKenedy6 hr
May 19, 2:41 PM CDTFlash Flood WarningBROCameron112 min
May 19, 2:59 PM CDTAreal Flood WarningBROCameron6 hr
May 19, 3:08 PM CDTAreal Flood WarningBROHidalgo19 hr
May 19, 4:36 PM CDTWind AdvisoryBROCameron102 min
May 19, 6:20 PM CDTSmall Craft AdvisoryBRO15 hr

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.