Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 72, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 28, 2021, 8:55 PM CDT for 4 counties in Texas. It was in force for 65 min. 11 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, 8:55 PM CDT (01:55 UTC)
- Expired
- Apr 28, 2021, 10:00 PM CDT
- In force
- 65 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Bexar County, TX, Comal County, TX, Guadalupe County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 60 km from the middle of the area, began a volume at 01:54 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, 8:55 PM CDT | HAIL 1 | 4 S Helotes, TX | |
| Apr 28, 9:07 PM CDT | HAIL 0.5 | 1 Nnw Leon Valley, TX | |
| Apr 28, 9:13 PM CDT | HAIL 0.7 | 2 Sse Helotes, TX | TWITTER REPORT. |
| Apr 28, 9:28 PM CDT | HAIL 0.25 | 2 Se Timberwood Park, TX | LOOKOUT CANYON CREEK SUBDIVISION. |
| 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 | |
| Apr 28, 10:00 PM CDT | HAIL 1.75 | 6 Nw New Braunfels, TX | |
| Apr 28, 10:05 PM CDT | HAIL 1.25 | 6 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
Del Rio, TX (KDRT), launched 00:00Z, 1.9 hours before the alert went out and 220 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.
- Mixed-layer CAPE
- 133 J/kg
- Mixed-layer CIN
- -279 J/kg
- Mixed-layer LCL
- 1737 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- -173 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.2
The text
As transmitted.
745
WUUS54 KEWX 290155
SVREWX
TXC029-091-187-493-290300-
/O.NEW.KEWX.SV.W.0072.210429T0155Z-210429T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
855 PM CDT Wed Apr 28 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Southwestern Guadalupe County in south central Texas...
North central Wilson County in south central Texas...
Bexar County in south central Texas...
Central Comal County in south central Texas...
* Until 1000 PM CDT.
* At 855 PM CDT, a severe thunderstorm was located over Leon Valley,
or near San Antonio, moving northeast at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
San Antonio, New Braunfels, Schertz, Cibolo, Universal City, Live
Oak, Selma, Stinson Municipal Airport, San Antonio Int Airport,
Randolph AFB, Canyon Lake, Leon Valley, Helotes, Fair Oaks Ranch,
Kirby, Alamo Heights, Windcrest, Terrell Hills, Bulverde and Garden
Ridge.
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!
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.
&&
A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.
LAT...LON 2925 9880 2963 9880 2995 9827 2937 9801
2924 9876
TIME...MOT...LOC 0155Z 234DEG 22KT 2951 9860
HAIL...1.25IN
WIND...60MPH
$$
BRADY3 follow-up statements
429
WWUS54 KEWX 290214
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
914 PM CDT Wed Apr 28 2021
TXC493-290223-
/O.CAN.KEWX.SV.W.0072.000000T0000Z-210429T0300Z/
Wilson TX-
914 PM CDT Wed Apr 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WILSON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.
LAT...LON 2942 9803 2941 9813 2944 9814 2940 9817
2932 9871 2965 9877 2995 9827
TIME...MOT...LOC 0213Z 242DEG 27KT 2958 9850
$$
TXC029-091-187-290300-
/O.CON.KEWX.SV.W.0072.000000T0000Z-210429T0300Z/
Guadalupe TX-Bexar TX-Comal TX-
914 PM CDT Wed Apr 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHWESTERN GUADALUPE...CENTRAL BEXAR AND CENTRAL COMAL
COUNTIES...
At 913 PM CDT, a severe thunderstorm was located over Hollywood Park,
or near San Antonio Int Airport, moving northeast at 30 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...
San Antonio, New Braunfels, Schertz, Cibolo, Universal City, Live
Oak, Selma, San Antonio Int Airport, Randolph AFB, Canyon Lake, Leon
Valley, Helotes, Fair Oaks Ranch, Kirby, Alamo Heights, Windcrest,
Terrell Hills, Bulverde, Garden Ridge and Shavano Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.
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 2942 9803 2941 9813 2944 9814 2940 9817
2932 9871 2965 9877 2995 9827
TIME...MOT...LOC 0213Z 242DEG 27KT 2958 9850
HAIL...1.00IN
WIND...60MPH
$$
BRADY581
WWUS54 KEWX 290233
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
933 PM CDT Wed Apr 28 2021
TXC029-091-187-290300-
/O.CON.KEWX.SV.W.0072.000000T0000Z-210429T0300Z/
Guadalupe TX-Bexar TX-Comal TX-
933 PM CDT Wed Apr 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR WEST CENTRAL GUADALUPE...NORTHEASTERN BEXAR AND CENTRAL COMAL
COUNTIES...
At 933 PM CDT, a severe thunderstorm was located near Garden Ridge,
or near Selma, moving northeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
San Antonio, New Braunfels, Schertz, Cibolo, Universal City, Live
Oak, Selma, San Antonio Int Airport, Randolph AFB, Canyon Lake,
Kirby, Alamo Heights, Windcrest, Terrell Hills, Bulverde, Garden
Ridge, Shavano Park, Hollywood Park, Marion and Santa Clara.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2946 9847 2971 9860 2984 9846 2995 9827
2952 9807
TIME...MOT...LOC 0233Z 234DEG 22KT 2965 9838
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
BRADY238
WWUS54 KEWX 290247
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
947 PM CDT Wed Apr 28 2021
TXC029-290257-
/O.CAN.KEWX.SV.W.0072.000000T0000Z-210429T0300Z/
Bexar TX-
947 PM CDT Wed Apr 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BEXAR 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 2956 9809 2956 9829 2963 9835 2965 9834
2968 9838 2970 9838 2971 9834 2972 9834
2973 9835 2972 9838 2973 9838 2975 9841
2974 9842 2980 9847 2995 9827
TIME...MOT...LOC 0247Z 234DEG 22KT 2970 9830
$$
TXC091-187-290300-
/O.CON.KEWX.SV.W.0072.000000T0000Z-210429T0300Z/
Guadalupe TX-Comal TX-
947 PM CDT Wed Apr 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR WEST CENTRAL GUADALUPE AND CENTRAL COMAL COUNTIES...
At 947 PM CDT, a severe thunderstorm was located near Garden Ridge,
or 8 miles north of Selma, moving northeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
New Braunfels, Schertz, Cibolo, Selma, Canyon Lake, Bulverde, Garden
Ridge, Marion, Santa Clara, Smithson Valley, Spring Branch,
Startzville, Bracken and Solms.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for south central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2956 9809 2956 9829 2963 9835 2965 9834
2968 9838 2970 9838 2971 9834 2972 9834
2973 9835 2972 9838 2973 9838 2975 9841
2974 9842 2980 9847 2995 9827
TIME...MOT...LOC 0247Z 234DEG 22KT 2970 9830
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
BRADYThe 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 | 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, 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, 9:30 PM CDT | Tornado Warning | EWX | Bexar, Comal, Guadalupe | 30 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
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.