Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 36, NWS Austin/San Antonio, TX

April 15, 2021Kinney County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 15, 2021, 8:40 AM CDT for Kinney County, Texas. It was in force for 65 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
Apr 15, 2021, 8:40 AM CDT (13:40 UTC)
Expired
Apr 15, 2021, 9:45 AM CDT
In force
65 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Kinney County, TX

The radar

The Laughlin AFB radar (KDFX), 23 km from the middle of the area, began a volume at 13:44 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 15, 8:36 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 1.7 hours before the alert went out and 34 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 2021-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2593 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, Del Rio, TX at 12:00Z on 2021-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
2593 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
338 m²/s²
Significant tornado parameter
4.6
Supercell composite
21.4

Open this sounding in Storm Lab

The text

As transmitted.

034 
WUUS54 KEWX 151340
SVREWX
TXC271-151445-
/O.NEW.KEWX.SV.W.0036.210415T1340Z-210415T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
Issued by National Weather Service Corpus Christi TX
840 AM CDT Thu Apr 15 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Central Kinney County in south central Texas...

* Until 945 AM CDT

* At 839 AM CDT, a severe thunderstorm was located near Standart, or
  10 miles northwest of Brackettville, moving east at 15 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...
  Brackettville, Standart, Alamo Village and Fort Clark Springs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2930 10065 2948 10064 2951 10025 2924 10026
TIME...MOT...LOC 1339Z 273DEG 15KT 2939 10057 

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

87
2 follow-up statements
756 
WWUS54 KEWX 151405
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
905 AM CDT Thu Apr 15 2021

TXC271-151445-
/O.CON.KEWX.SV.W.0036.000000T0000Z-210415T1445Z/
Kinney TX-
905 AM CDT Thu Apr 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT
FOR CENTRAL KINNEY COUNTY...

At 905 AM CDT, a severe thunderstorm was located near Alamo Village,
or near Brackettville, moving east at 15 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...
Brackettville, Alamo Village and Fort Clark Springs. 

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.

&&

LAT...LON 2930 10057 2949 10052 2951 10025 2924 10026
TIME...MOT...LOC 1405Z 273DEG 15KT 2938 10044 

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

BF
047 
WWUS54 KEWX 151432
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
932 AM CDT Thu Apr 15 2021

TXC271-151445-
/O.CON.KEWX.SV.W.0036.000000T0000Z-210415T1445Z/
Kinney TX-
932 AM CDT Thu Apr 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT
FOR NORTHEASTERN KINNEY COUNTY...

At 932 AM CDT, a severe thunderstorm was located near Alamo Village,
or 7 miles northeast of Brackettville, moving east at 15 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...
Brackettville, Alamo Village, and Fort Clark Springs. 

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.

&&

LAT...LON 2928 10045 2950 10041 2951 10025 2924 10026
TIME...MOT...LOC 1432Z 273DEG 15KT 2937 10031 

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

BF

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 7:34 AM CDTSpecial Weather StatementEWXKinney41 min
Apr 15, 8:12 AM CDTSpecial Weather StatementEWXEdwards48 min
Apr 15, 8:14 AM CDTSpecial Weather StatementEWXKinney46 min
Apr 15, 8:31 AM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde59 min
Apr 15, 8:55 AM CDTSpecial Weather StatementEWXEdwards50 min
Apr 15, 9:04 AM CDTSevere Thunderstorm WarningEWXEdwards24 min
Apr 15, 9:32 AM CDTSevere Thunderstorm WarningEWXEdwards17 min
Apr 15, 9:42 AM CDTSevere Thunderstorm WarningEWXKinney, Uvalde63 min
Apr 15, 10:42 AM CDTSevere Thunderstorm WarningEWXUvalde45 min
Apr 15, 12:15 PM CDTSevere Thunderstorm WarningEWXGillespie, Llano60 min
Apr 15, 1:07 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Llano, Travis53 min
Apr 15, 1:52 PM CDTSevere Thunderstorm WarningEWXBurnet, Williamson36 min
Apr 15, 2:07 PM CDTSevere Thunderstorm WarningEWXBurnet, Williamson40 min
Apr 15, 2:57 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano63 min
Apr 15, 3:21 PM CDTSevere Thunderstorm WarningEWXBurnet, Williamson54 min
Apr 15, 3:56 PM CDTSevere Thunderstorm WarningEWXTravis, Williamson49 min
Apr 15, 4:11 PM CDTSpecial Weather StatementEWXWilliamson49 min
Apr 15, 4:36 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee, Travis, Williamson54 min
Apr 15, 5:22 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee29 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.