Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 63, NWS Austin/San Antonio, TX

April 28, 20215 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 28, 2021, 6:09 PM CDT for 5 counties in Texas. It was in force for 66 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 28, 2021, 6:09 PM CDT (23:09 UTC)
Expired
Apr 28, 2021, 7:15 PM CDT
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Hail
2.0 in
Wind
70.0 mph

Counties Bandera County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 28 km from the middle of the area, began a volume at 23:14 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.

What was reported inside it

TimeReportWhereRemark
Apr 28, 6:19 PM CDTHAIL 2.756 Nw Uvalde, TXREPORT FROM MPING OF BASEBALL SIZED HAIL TO THE NORTHWEST OF UVALDE.
Apr 28, 6:50 PM CDTHAIL 1.75Concan, TXREPORT OF GOLF BALL SIZE HAIL IN CONCAN.
Apr 28, 7:12 PM CDTTSTM WND DMGD'Hanis, TXMULTIPLE TREES FROM WEST OF TOWN ALONG OLD HWY 90 INTO TOWN WITH LARGE LIMBS DOWN OR TRUNKS SNAPPED. OTHER DAMAGE INCLUDED DESTRUCTION OF A SMALL METAL CAR PORT AND A CENTER PIVOT IRRIGATION SYSTEM SLIPPED. WIND DRIVEN HAIL ALSO CAUSED DAMAGE. WINDS WERE ESTIM
Apr 28, 7:12 PM CDTHAIL 2.5Sabinal, TXTENNIS BALL SIZED HAIL ONGOING IN SABINAL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 28, 3:10 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.2 hours before the alert went out and 81 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, Del Rio, TX at 12:00Z on 2021-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2118 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, Del Rio, TX at 12:00Z on 2021-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 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
2118 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
609 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
1.6
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted.

980 
WUUS54 KEWX 282309
SVREWX
TXC019-271-325-385-463-290015-
/O.NEW.KEWX.SV.W.0063.210428T2309Z-210429T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
609 PM CDT Wed Apr 28 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Western Medina County in south central Texas...
  Southwestern Bandera County in south central Texas...
  Southeastern Kinney County in south central Texas...
  Uvalde County in south central Texas...
  Southeastern Real County in south central Texas...

* Until 715 PM CDT.

* At 608 PM CDT, a pair of severe thunderstorms were located over 
  Brackettville and a few miles north of Cline, moving east at 40 
  mph.

  HAZARD...Two inch hail and 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Uvalde, Brackettville, Sabinal, Knippa, Laguna, Blewett, Rio Frio,
  Concan, Uvalde Estates, Montell, Cline, Garner State Park,
  Anacacho, Reagan Wells, Utopia, Alamo Village, D'Hanis, Turkey
  Mountain and Fort Clark Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

This storm is producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows!

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

&&

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

LAT...LON 2920 10047 2943 10048 2979 9931 2913 9928
TIME...MOT...LOC 2308Z 264DEG 35KT 2929 10038 

HAIL...2.00IN
WIND...70MPH
 
$$

BRADY
3 follow-up statements
942 
WWUS54 KEWX 282326
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
626 PM CDT Wed Apr 28 2021

TXC019-271-325-385-463-290015-
/O.CON.KEWX.SV.W.0063.000000T0000Z-210429T0015Z/
Medina TX-Bandera TX-Kinney TX-Uvalde TX-Real TX-
626 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR WESTERN MEDINA...SOUTHWESTERN BANDERA...SOUTHEASTERN KINNEY...
UVALDE AND SOUTHEASTERN REAL COUNTIES...

At 626 PM CDT, a pair of severe thunderstorms were located near 
Cline, or 13 miles east of Brackettville, and 6 miles northwest of 
Uvalde, moving east at 40 mph.

These are very dangerous storms.

HAZARD...Baseball size hail and 70 mph wind gusts.

SOURCE...Public.

IMPACT...People and animals outdoors will be severely injured. 
         Expect shattered windows, extensive damage to roofs, 
         siding, and vehicles.

Locations impacted include...
Uvalde, Sabinal, Knippa, Laguna, Blewett, Rio Frio, Concan, Uvalde
Estates, Montell, Cline, Garner State Park, Anacacho, Reagan Wells,
Utopia, D'Hanis and Turkey Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

These storms are producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows.

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

&&

LAT...LON 2919 10032 2948 10033 2953 10017 2977 9931
      2913 9928
TIME...MOT...LOC 2326Z 264DEG 35KT 2931 10018 

TORNADO...POSSIBLE
HAIL...2.75IN
WIND...70MPH
 
$$

BRADY
414 
WWUS54 KEWX 282340
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
640 PM CDT Wed Apr 28 2021

TXC271-282349-
/O.CAN.KEWX.SV.W.0063.000000T0000Z-210429T0015Z/
Kinney TX-
640 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN KINNEY COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

LAT...LON 2918 10011 2955 10011 2977 9931 2913 9928
TIME...MOT...LOC 2339Z 266DEG 43KT 2932 9997 

$$

TXC019-325-385-463-290015-
/O.CON.KEWX.SV.W.0063.000000T0000Z-210429T0015Z/
Medina TX-Bandera TX-Uvalde TX-Real TX-
640 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR WESTERN MEDINA...SOUTHWESTERN BANDERA...UVALDE AND SOUTHEASTERN
REAL COUNTIES...

At 639 PM CDT, a pair of severe thunderstorms were located 7 miles 
east of Cline, or 13 miles northwest of Uvalde, and 5 miles 
north-northeast of Uvalde, moving east at 50 mph.

These are very dangerous storms.

HAZARD...Baseball size hail and 70 mph wind gusts.

SOURCE...Public.

IMPACT...People and animals outdoors will be severely injured. 
         Expect shattered windows, extensive damage to roofs, 
         siding, and vehicles.

Locations impacted include...
Uvalde, Sabinal, Knippa, Laguna, Blewett, Rio Frio, Concan, Uvalde
Estates, Montell, Cline, Garner State Park, Reagan Wells, Utopia and
D'Hanis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

These storms are producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows.

Continuous cloud to ground lightning is occurring with these storms.
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.

&&

LAT...LON 2918 10011 2955 10011 2977 9931 2913 9928
TIME...MOT...LOC 2339Z 266DEG 43KT 2932 9997 

TORNADO...POSSIBLE
HAIL...2.75IN
WIND...70MPH
 
$$

BRADY
385 
WWUS54 KEWX 282352
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
652 PM CDT Wed Apr 28 2021

TXC019-325-385-463-290015-
/O.CON.KEWX.SV.W.0063.000000T0000Z-210429T0015Z/
Medina TX-Bandera TX-Uvalde TX-Real TX-
652 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR WESTERN MEDINA...SOUTHWESTERN BANDERA...UVALDE AND SOUTHEASTERN
REAL COUNTIES...

At 651 PM CDT, a pair of severe thunderstorms were located 8 miles 
northwest of Uvalde and 13 miles northeast of Uvalde, moving east at 
40 mph.

These are very dangerous storms.

HAZARD...Softball size hail and 70 mph wind gusts.

SOURCE...Public.

IMPACT...People and animals outdoors will be severely injured. 
         Expect shattered windows, extensive damage to roofs, 
         siding, and vehicles.

Locations impacted include...
Uvalde, Sabinal, Knippa, Uvalde Estates, Garner State Park, Rio Frio,
Reagan Wells, Utopia, Concan and D'Hanis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.

These are dangerous storms. Prepare immediately for large 
destructive hail capable of producing significant damage. People 
outside should move to a shelter, inside a strong building and away 
from windows.

Continuous cloud to ground lightning is occurring with these storms.
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.

&&

LAT...LON 2917 9996 2959 9997 2977 9931 2913 9928
TIME...MOT...LOC 2351Z 264DEG 35KT 2933 9984 

TORNADO...POSSIBLE
HAIL...4.00IN
WIND...70MPH
 
$$

BRADY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:34 PM CDTSpecial Weather StatementEWXVal Verde41 min
Apr 28, 3:42 PM CDTSevere Thunderstorm WarningEWXVal Verde34 min
Apr 28, 4:29 PM CDTSevere Thunderstorm WarningEWXKinney, Val Verde61 min
Apr 28, 5:25 PM CDTSevere Thunderstorm WarningEWXKinney, Uvalde65 min
Apr 28, 5:27 PM CDTSpecial Weather StatementEWXKinney48 min
Apr 28, 5:38 PM CDTSevere Thunderstorm WarningEWXKinney, Val Verde37 min
Apr 28, 6:18 PM CDTSpecial Weather StatementEWXVal Verde42 min
Apr 28, 6:47 PM CDTSevere Thunderstorm WarningEWXKinney, Val Verde58 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.