Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 6, NWS Austin/San Antonio, TX

April 28, 2021Bexar County, Comal County, Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 28, 2021, 9:30 PM CDT for Bexar County, Comal County, Guadalupe County, Texas. It was in force for 30 min. 5 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, 9:30 PM CDT (02:30 UTC)
Expired: Apr 28, 2021, 10:00 PM CDT
In force: 30 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Bexar County, TX, Comal County, TX, Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 14 km from the middle of the area, began a volume at 02:33 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

Time	Report	Where	Remark
Apr 28, 9:30 PM CDT	TSTM WND DMG	3 Nnw Live Oak, TX	SOUTHWEST PORTION OF A 1 MILE WIDE SWATH OF SPORADIC WIND DAMAGE TO MAINLY TREES, FENCES AND POWER LINES. THE DAMAGE PATH EXTENDED 4 MILES NE TO NEAR THE COMAL COUNTY LINE. TIME ESTIMATED BY RADAR.
Apr 28, 9:30 PM CDT	TSTM WND DMG	3 Nw Live Oak, TX	TREES DOWN.
Apr 28, 9:30 PM CDT	TSTM WND DMG	3 Nw Live Oak, TX	SOCIAL MEDIA REPORT SHOWING PICTURES OF TREES DOWN NEAR THE INTERSECTION OF STAHL ROAD AND JUDSON ROAD.
Apr 28, 9:38 PM CDT	TSTM WND DMG	2 Nw Selma, TX	NORTHEAST PORTION OF A 1 MILE WIDE SWATH OF SPORADIC WIND DAMAGE TO MAINLY TREES, FENCES, AND POWER LINES. THE DAMAGE PATH EXTENDS 4 MILES SOUTHWEST TO NEAR COMMANCHE PARK. TIME ESTIMATED BY RADAR. DAMAGE SURVEY SUGGESTED MAX WIND SPEEDS UP TO 80 MPH.
Apr 28, 9:55 PM CDT	HAIL 1	4 Wnw New Braunfels, TX

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.

Issued	Product	Office	Lasted
Apr 28, 3:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 2.5 hours before the alert went out and 228 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: 2321 J/kg
Mixed-layer CIN: -348 J/kg
Mixed-layer LCL: 1029 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

303 
WFUS54 KEWX 290230
TOREWX
TXC029-091-187-290300-
/O.NEW.KEWX.TO.W.0006.210429T0230Z-210429T0300Z/

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

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Northwestern Guadalupe County in south central Texas...
  Northeastern Bexar County in south central Texas...
  Southeastern Comal County in south central Texas...

* Until 1000 PM CDT.
    
* At 930 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Selma, moving east at 35 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  San Antonio, New Braunfels, Schertz, Seguin, Cibolo, Universal
  City, Live Oak, Selma, Randolph AFB, Windcrest, Garden Ridge,
  McQueeney, Marion, Santa Clara, Geronimo, Converse, Nolte, Zipp,
  Bracken and Freiheit.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2949 9840 2966 9845 2980 9801 2976 9800
      2978 9796 2955 9790
TIME...MOT...LOC 0230Z 255DEG 32KT 2960 9835 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BRADY

2 follow-up statements

335 
WWUS54 KEWX 290241
SVSEWX

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

TXC029-290250-
/O.CAN.KEWX.TO.W.0006.000000T0000Z-210429T0300Z/
Bexar TX-
941 PM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTHEASTERN BEXAR COUNTY IS CANCELLED...
    
The tornadic 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 2954 9823 2955 9822 2956 9824 2955 9826
      2954 9825 2954 9826 2956 9830 2969 9836
      2980 9802 2976 9800 2978 9796 2959 9791
TIME...MOT...LOC 0240Z 251DEG 33KT 2964 9825 

$$

TXC091-187-290300-
/O.CON.KEWX.TO.W.0006.000000T0000Z-210429T0300Z/
Guadalupe TX-Comal TX-
941 PM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHWESTERN GUADALUPE AND SOUTHEASTERN COMAL COUNTIES...
    
At 940 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Garden Ridge, or near Schertz, moving east at 35
mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
New Braunfels, Schertz, Seguin, Cibolo, Universal City, Selma, Garden
Ridge, McQueeney, Marion, Santa Clara, Geronimo, Nolte, Bracken,
Freiheit, Solms, Gruene and New Braunfels Regional Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2954 9823 2955 9822 2956 9824 2955 9826
      2954 9825 2954 9826 2956 9830 2969 9836
      2980 9802 2976 9800 2978 9796 2959 9791
TIME...MOT...LOC 0240Z 251DEG 33KT 2964 9825 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BRADY

099 
WWUS54 KEWX 290252
SVSEWX

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

TXC091-187-290300-
/O.CON.KEWX.TO.W.0006.000000T0000Z-210429T0300Z/
Guadalupe TX-Comal TX-
952 PM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL
GUADALUPE AND SOUTHEASTERN COMAL COUNTIES...
    
At 951 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Garden Ridge, or near New Braunfels, moving
northeast at 20 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
New Braunfels, Schertz, Seguin, Geronimo, Freiheit, Solms, Gruene and
New Braunfels Regional Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

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

&&

LAT...LON 2966 9826 2970 9827 2974 9820 2980 9802
      2976 9800 2978 9796 2963 9792 2963 9795
      2962 9824
TIME...MOT...LOC 0251Z 241DEG 18KT 2967 9821 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BRADY

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:00 PM CDT	Tornado Warning	EWX	Medina, Uvalde	30 min
Apr 28, 7:10 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Uvalde	65 min
Apr 28, 7:22 PM CDT	Special Weather Statement	EWX	Maverick	38 min
Apr 28, 7:26 PM CDT	Tornado Warning Tornado observed	EWX	Bandera, Bexar, Medina	34 min
Apr 28, 7:29 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Real, Uvalde	61 min
Apr 28, 7:55 PM CDT	Special Weather Statement	EWX	Uvalde	50 min
Apr 28, 7:55 PM CDT	Tornado Warning	EWX	Atascosa, Bexar, Medina	50 min
Apr 28, 7:59 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bandera, Bexar, Comal, Kendall, Medina and 1 more	61 min
Apr 28, 8:07 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick, Uvalde, Zavala	53 min
Apr 28, 8:12 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Uvalde	51 min
Apr 28, 8:45 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Uvalde	20 min
Apr 28, 8:46 PM CDT	Areal Flood Advisory	EWX	Bandera, Bexar, Medina	3 hr
Apr 28, 8:49 PM CDT	Severe Thunderstorm Warning	EWX	Frio, Medina, Uvalde, Zavala	56 min
Apr 28, 8:55 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe, Wilson	65 min
Apr 28, 9:17 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	23 min
Apr 28, 9:18 PM CDT	Flash Flood Warning	EWX	Bexar	3 hr
Apr 28, 9:27 PM CDT	Special Weather Statement	EWX	Bexar	48 min
Apr 28, 9:37 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	42 min
Apr 28, 9:53 PM CDT	Severe Thunderstorm Warning	EWX	Comal, Guadalupe, Hays	40 min
Apr 28, 9:57 PM CDT	Tornado Warning	EWX	Comal, Guadalupe, Hays	20 min
Apr 28, 10:12 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Edwards, Kerr, Kinney, Real, Uvalde	63 min
Apr 28, 10:21 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Hays, Travis	22 min
Apr 28, 11:02 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	43 min
Apr 28, 11:08 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Gillespie, Kendall, Kerr	14 min
Apr 28, 11:16 PM CDT	Special Weather Statement	EWX	Kinney	44 min
Apr 28, 11:20 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick	55 min
Apr 28, 11:31 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick	44 min
Apr 28, 11:36 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Real, Uvalde	54 min
Apr 28, 11:41 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Gillespie, Kendall, Kerr	49 min
Apr 28, 11:43 PM CDT	Severe Thunderstorm Warning	EWX	Maverick, Zavala	47 min
Apr 29, 12:01 AM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick, Uvalde, Zavala	44 min
Apr 29, 12:14 AM CDT	Severe Thunderstorm Warning	EWX	Uvalde, Zavala	46 min
Apr 29, 12:27 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Kerr, Medina, Uvalde	63 min
Apr 29, 12:30 AM CDT	Special Weather Statement	EWX	Gillespie	45 min
Apr 29, 12:36 AM CDT	Severe Thunderstorm Warning	EWX	Frio, Medina, Uvalde, Zavala	54 min
Apr 29, 12:48 AM CDT	Special Weather Statement	EWX	Dimmit	42 min
Apr 29, 12:59 AM CDT	Tornado Warning	EWX	Frio, Zavala	14 min
Apr 29, 1:03 AM CDT	Tornado Warning	EWX	Frio, Medina, Uvalde	27 min
Apr 29, 1:07 AM CDT	Severe Thunderstorm Warning	EWX	Medina, Uvalde	53 min
Apr 29, 1:22 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	53 min
Apr 29, 1:28 AM CDT	Special Weather Statement	EWX	Kendall	47 min
Apr 29, 1:33 AM CDT	Tornado Warning	EWX	Medina	17 min
Apr 29, 1:48 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina, Wilson	21 min
Apr 29, 2:05 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bandera, Bexar, Medina, Uvalde	3 hr
Apr 29, 2:09 AM CDT	Special Weather Statement	EWX	Bexar, Guadalupe, Wilson	51 min
Apr 29, 2:18 AM CDT	Areal Flood Advisory	EWX	Bandera, Kendall, Kerr	3 hr
Apr 29, 3:54 AM CDT	Special Weather Statement	EWX	Wilson	36 min
Apr 29, 5:13 AM CDT	Special Weather Statement	EWX	Kendall	32 min
Apr 29, 5:20 AM CDT	Special Weather Statement	EWX	Comal	25 min
Apr 29, 2:22 PM CDT	River Flood Warning	EWX	Bexar	6 hr

Nearby

Tornado Warnings in Texas, 2021 Every tornado warning in 2021 Tornadoes 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.