Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 92, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 3, 2021, 7:12 PM CDT for Bexar County, Comal County, Medina County, Texas. It was in force for 63 min. 15 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
- May 3, 2021, 7:12 PM CDT (00:12 UTC)
- Expired
- May 3, 2021, 8:15 PM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Bexar County, TX, Comal County, TX, Medina County, TX
The radar
The Austin/San Antonio radar (KEWX), 54 km from the middle of the area, began a volume at 00:15 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 |
|---|---|---|---|
| May 3, 7:12 PM CDT | HAIL 1.5 | 6 Wsw Sea World, TX | TWITTER REPORT. |
| May 3, 7:28 PM CDT | HAIL 1 | 3 Nne Sea World, TX | TRAINED SPOTTER CALLED IN A REPORT OF HAIL UP TO 1 INCH ON BARE BACK TRAIL. |
| May 3, 7:37 PM CDT | HAIL 1 | 3 Nw Sea World, TX | CORRECTS PREVIOUS HAIL REPORT FROM 3 NW SEA WORLD. MULTIPLE REPORTS OF PEA TO QUARTER SIZE HAIL IN THE ALAMO RANCH AREA FROM HAM OPERATORS. |
| May 3, 7:37 PM CDT | HAIL 1 | 3 Nw Sea World, TX | MULTIPLE REPORTS OF PEA TO QUARTER SIZE HAIL IN THE ALAMO RANCH AREA. |
| May 3, 7:41 PM CDT | HAIL 0.25 | 2 Nw Leon Valley, TX | |
| May 3, 7:57 PM CDT | HAIL 1 | 3 Ssw Balcones Heights, TX | TWITTER REPORT, JUST SOUTH OF ST. MARYS UNIVERSITY. |
| May 3, 7:59 PM CDT | HAIL 1 | 3 Ssw Balcones Heights, TX | 1 INCH HAIL REPORTED AT ST MARYS UNIVERSITY. |
| May 3, 8:00 PM CDT | HAIL 0.88 | 3 Wsw Olmos Park, TX | W MISTLETOE AND N ZARZAMORA. |
| May 3, 8:00 PM CDT | HAIL 1.75 | 3 S Balcones Heights, TX | TWITTER REPORT: MENCHACA AND NW 29TH. |
| May 3, 8:02 PM CDT | HAIL 0.5 | 4 W San Antonio, TX | S. GENERAL MCMULLEN AND W. COMMERCE. |
| May 3, 8:03 PM CDT | HAIL 0.75 | 2 Nw Olmos Park, TX | TWITTER REPORT AT BLANCO AND BASSE. |
| May 3, 8:05 PM CDT | HAIL 1.75 | 2 W San Antonio, TX | TRAINED SPOTTER REPORT OF GOLF BALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 805PM. |
| May 3, 8:06 PM CDT | HAIL 2 | 3 Sse Balcones Heights, TX | TWITTER REPORT AT WOODLAWN LAKE. |
| May 3, 8:10 PM CDT | HAIL 2.75 | 2 W San Antonio, TX | UPDATES PREVIOUS HAIL REPORT FROM 2 W SAN ANTONIO. TRAINED SPOTTER REPORT OF BASEBALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 810PM. |
| May 3, 8:13 PM CDT | HAIL 1.75 | 1 S Alamo Heights, TX | TWITTER REPORT AT BROADWAY AND HILDEBRAND. |
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 |
|---|---|---|---|
| May 3, 7:01 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.2 hours before the alert went out and 223 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 4428 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
803
WUUS54 KEWX 040012
SVREWX
TXC029-091-325-040115-
/O.NEW.KEWX.SV.W.0092.210504T0012Z-210504T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
712 PM CDT Mon May 3 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
East central Medina County in south central Texas...
Northwestern Bexar County in south central Texas...
Southwestern Comal County in south central Texas...
* Until 815 PM CDT.
* At 712 PM CDT, a severe thunderstorm was located over Sea World, or
10 miles northeast of Castroville, moving northeast at 25 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Public.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
San Antonio, Schertz, Universal City, Live Oak, Selma, San Antonio
Int Airport, Leon Valley, Helotes, Alamo Heights, Windcrest,
Terrell Hills, Bulverde, Garden Ridge, Shavano Park, Hollywood
Park, Cross Mountain, Olmos Park, The Dominion, Sea World and
Lackland AFB.
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 2943 9890 2982 9844 2962 9825 2959 9831
2955 9828 2931 9876
TIME...MOT...LOC 0012Z 228DEG 21KT 2943 9872
HAIL...1.50IN
WIND...60MPH
$$
BRADY2 follow-up statements
298
WWUS54 KEWX 040042
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
742 PM CDT Mon May 3 2021
TXC029-091-325-040115-
/O.CON.KEWX.SV.W.0092.000000T0000Z-210504T0115Z/
Medina TX-Bexar TX-Comal TX-
742 PM CDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR EAST CENTRAL MEDINA...NORTHWESTERN BEXAR AND SOUTHWESTERN COMAL
COUNTIES...
At 742 PM CDT, a severe thunderstorm was located over Leon Valley, or
7 miles northwest of San Antonio, moving northeast at 15 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Public.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
San Antonio, Schertz, Universal City, Live Oak, Selma, San Antonio
Int Airport, Leon Valley, Helotes, Alamo Heights, Windcrest, Terrell
Hills, Bulverde, Garden Ridge, Shavano Park, Hollywood Park, Cross
Mountain, Olmos Park, The Dominion, Sea World and Lackland AFB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2982 9844 2962 9825 2959 9831 2955 9828
2931 9876 2943 9890
TIME...MOT...LOC 0042Z 221DEG 15KT 2952 9863
HAIL...1.25IN
WIND...60MPH
$$
BRADY604
WWUS54 KEWX 040057
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
757 PM CDT Mon May 3 2021
TXC325-040107-
/O.CAN.KEWX.SV.W.0092.000000T0000Z-210504T0115Z/
Medina TX-
757 PM CDT Mon May 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MEDINA COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.
LAT...LON 2962 9825 2959 9831 2955 9828 2933 9872
2946 9873 2975 9837
TIME...MOT...LOC 0057Z 237DEG 46KT 2945 9856
$$
TXC029-091-040115-
/O.CON.KEWX.SV.W.0092.000000T0000Z-210504T0115Z/
Bexar TX-Comal TX-
757 PM CDT Mon May 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL BEXAR AND SOUTH CENTRAL COMAL COUNTIES...
At 757 PM CDT, a severe thunderstorm was located over San Antonio,
moving northeast at 55 mph.
This is a very dangerous storm.
HAZARD...Baseball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be severely injured.
Expect shattered windows, extensive damage to roofs,
siding, and vehicles.
Locations impacted include...
San Antonio, Schertz, Universal City, Live Oak, Selma, San Antonio
Int Airport, Leon Valley, Alamo Heights, Windcrest, Terrell Hills,
Garden Ridge, Shavano Park, Hollywood Park, Olmos Park, Lackland AFB,
Sea World, Timberwood Park, Converse, Castle Hills and Balcones
Heights.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2962 9825 2959 9831 2955 9828 2933 9872
2946 9873 2975 9837
TIME...MOT...LOC 0057Z 237DEG 46KT 2945 9856
HAIL...2.75IN
WIND...60MPH
$$
BRADYThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 7:10 PM CDT | Special Weather Statement | EWX | Kendall | 50 min |
| May 3, 7:14 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Bexar, Blanco, Gillespie, Kendall, Kerr and 1 more | 61 min |
| May 3, 7:30 PM CDT | Areal Flood Advisory | EWX | Bandera, Bexar, Comal, Kendall, Medina | 3 hr |
| May 3, 7:49 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe | 56 min |
| May 3, 8:12 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Gillespie, Kendall, Llano | 48 min |
| May 3, 8:19 PM CDT | Areal Flood Advisory | EWX | Bexar, Guadalupe, Wilson | 3 hr |
| May 3, 8:23 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe, Wilson | 22 min |
| May 3, 8:43 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Gonzales, Guadalupe, Wilson | 62 min |
| May 3, 8:53 PM CDT | Special Weather Statement | EWX | Burnet | 52 min |
| May 3, 8:58 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Llano, Travis, Williamson | 62 min |
| May 3, 9:16 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano, Travis, Williamson | 41 min |
| May 3, 10:08 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 30 min |
| May 4, 6:33 AM CDT | Special Weather Statement | EWX | Caldwell | 42 min |
| May 4, 6:41 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Hays, Travis | 64 min |
| May 4, 7:25 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Travis | 50 min |
| May 4, 7:37 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Fayette, Lee | 53 min |
| May 4, 8:05 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Travis, Williamson | 13 min |
| May 4, 8:20 AM CDT | Special Weather Statement | EWX | Hays, Travis | 40 min |
| May 4, 8:22 AM CDT | Special Weather Statement | EWX | Lee | 38 min |
| May 4, 8:22 AM CDT | Special Weather Statement | EWX | Lee | 38 min |
| May 4, 8:25 AM CDT | Special Weather Statement | EWX | Lee | 35 min |
| May 4, 8:59 AM CDT | Special Weather Statement | EWX | Hays, Travis | 46 min |
| May 4, 9:27 AM CDT | Special Weather Statement | EWX | Guadalupe | 33 min |
| May 4, 9:48 AM CDT | Special Weather Statement | EWX | Bastrop | 27 min |
| May 4, 9:58 AM CDT | Special Weather Statement | EWX | Caldwell | 47 min |
| May 4, 10:04 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Fayette | 41 min |
| May 4, 10:38 AM CDT | Special Weather Statement | EWX | Bastrop | 37 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.