Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 159, NWS Austin/San Antonio, TX

May 31, 2021Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 31, 2021, 9:23 PM CDT for Val Verde County, Texas. It was in force for 43 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 31, 2021, 9:23 PM CDT (02:23 UTC)
Expired: May 31, 2021, 10:06 PM CDT
In force: 43 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 64 km from the middle of the area, began a volume at 02:22 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.

Issued	Product	Office	Lasted
May 31, 7:17 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.4 hours before the alert went out and 11 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: 2624 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 176 m²/s²
Significant tornado parameter: 2.8
Supercell composite: 11.0

Open this sounding in Storm Lab

The text

As transmitted.

780 
WUUS54 KEWX 010223
SVREWX
TXC465-010330-
/O.NEW.KEWX.SV.W.0159.210601T0223Z-210601T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
923 PM CDT Mon May 31 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Southeastern Val Verde County in south central Texas...

* Until 1030 PM CDT.

* At 923 PM CDT, a severe thunderstorm was located over Lake View, or
  8 miles northwest of Del Rio, moving east at 10 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Del Rio, Lake View, Amistad Village, Black Brush Point, Laughlin
  AFB, Val Verde Park, Diablo East, Cienegas Terrace, Governors
  Landing, Long Point, 277 South Boat Ramp, 277 North Campground, San
  Pedro Canyon, Spur 406 Campground, Escondido Estates and Lake Ridge
  Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail, damaging winds, and continuous cloud to ground lightning
are 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 2956 10104 2961 10070 2934 10071 2933 10075
      2937 10101 2939 10102 2940 10103
TIME...MOT...LOC 0223Z 269DEG 10KT 2946 10097 

HAIL...1.00IN
WIND...60MPH
 
$$

BRADY

2 follow-up statements

249 
WWUS54 KEWX 010256
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
956 PM CDT Mon May 31 2021

TXC465-010330-
/O.CON.KEWX.SV.W.0159.000000T0000Z-210601T0330Z/
Val Verde TX-
956 PM CDT Mon May 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHEASTERN VAL VERDE COUNTY...

At 956 PM CDT, a severe thunderstorm was located near Lake View, or
near Del Rio, moving east at 5 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Del Rio, Lake View, Amistad Village, Black Brush Point, Laughlin AFB,
Val Verde Park, Diablo East, Cienegas Terrace, Governors Landing,
Long Point, 277 South Boat Ramp, 277 North Campground, San Pedro
Canyon, Spur 406 Campground, Escondido Estates and Lake Ridge Ranch.

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 2956 10104 2961 10070 2934 10071 2933 10075
      2937 10101 2939 10102 2940 10103
TIME...MOT...LOC 0256Z 279DEG 5KT 2946 10090 

HAIL...1.00IN
WIND...60MPH
 
$$

BRADY

633 
WWUS54 KEWX 010306
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1006 PM CDT Mon May 31 2021

TXC465-010315-
/O.CAN.KEWX.SV.W.0159.000000T0000Z-210601T0330Z/
Val Verde TX-
1006 PM CDT Mon May 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VAL VERDE COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
south central Texas.

LAT...LON 2956 10104 2961 10070 2934 10071 2933 10075
      2937 10101 2939 10102 2940 10103
TIME...MOT...LOC 0304Z 269DEG 10KT 2946 10087 

$$

BRADY

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 8:31 PM CDT	Special Weather Statement	EWX	Val Verde	44 min
May 31, 8:35 PM CDT	Special Weather Statement	EWX	Val Verde	40 min
May 31, 9:14 PM CDT	Special Weather Statement	EWX	Val Verde	46 min
May 31, 9:48 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Val Verde	2 hr
May 31, 10:22 PM CDT	Areal Flood Advisory	EWX	Williamson	3 hr
May 31, 10:38 PM CDT	Special Weather Statement	EWX	Kinney	52 min
May 31, 11:00 PM CDT	Areal Flood Advisory	EWX	Kinney, Maverick	26 min
May 31, 11:15 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick	60 min
May 31, 11:26 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Kinney, Maverick	3 hr
May 31, 11:32 PM CDT	Special Weather Statement	EWX	Gillespie	43 min
May 31, 11:47 PM CDT	Flash Flood Warning Considerable damage threat	EWX	Maverick	3 hr
May 31, 11:51 PM CDT	Special Weather Statement	EWX	Maverick	24 min
Jun 1, 12:08 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick, Zavala	67 min
Jun 1, 12:14 AM CDT	Areal Flood Advisory	EWX	Gillespie	3 hr
Jun 1, 12:44 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Dimmit, Maverick, Zavala	3 hr
Jun 1, 12:54 AM CDT	Areal Flood Advisory	EWX	Blanco, Burnet, Llano	3 hr
Jun 1, 12:55 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Frio, Maverick, Zavala	65 min
Jun 1, 1:19 AM CDT	Areal Flood Advisory	EWX	Travis, Williamson	3 hr
Jun 1, 1:36 AM CDT	Areal Flood Advisory	EWX	Bexar, Medina	3 hr
Jun 1, 1:57 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Frio, Zavala	63 min
Jun 1, 2:08 AM CDT	Areal Flood Advisory	EWX	Dimmit, Zavala	4 hr
Jun 1, 2:34 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Lee	3 hr
Jun 1, 2:56 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar, Frio, Medina	3 hr
Jun 1, 2:56 AM CDT	Special Weather Statement	EWX	Frio	49 min
Jun 1, 3:13 AM CDT	Areal Flood Advisory	EWX	Gonzales	3 hr
Jun 1, 3:34 AM CDT	Areal Flood Advisory	EWX	Atascosa	2 hr
Jun 1, 3:40 AM CDT	Areal Flood Advisory	EWX	Dimmit, Maverick, Zavala	2 hr
Jun 1, 3:57 AM CDT	Areal Flood Advisory	EWX	Karnes, Wilson	2 hr
Jun 1, 4:34 AM CDT	Areal Flood Advisory	EWX	DeWitt, Karnes	3 hr
Jun 1, 5:07 AM CDT	Flash Flood Warning Considerable damage threat	EWX	DeWitt, Gonzales, Karnes	3 hr
Jun 1, 6:02 AM CDT	Special Weather Statement	EWX	Bexar, Comal, Guadalupe	58 min
Jun 1, 7:39 AM CDT	River Flood Warning	EWX	Williamson	6 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every 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.