Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 15, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 23, 2021, 1:26 AM CDT for 7 counties in Texas. It was in force for 64 min. 6 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
- Mar 23, 2021, 1:26 AM CDT (06:26 UTC)
- Expired
- Mar 23, 2021, 2:30 AM CDT
- In force
- 64 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bastrop County, TX, Caldwell County, TX, Comal County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Travis County, TX
The radar
The Austin/San Antonio radar (KEWX), 24 km from the middle of the area, began a volume at 06:29 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 |
|---|---|---|---|
| Mar 23, 1:29 AM CDT | HAIL 2 | 7 Nne New Braunfels, TX | |
| Mar 23, 1:30 AM CDT | HAIL 1.75 | 7 Wnw Zorn, TX | NWS EMPLOYEE REPORTED GOLF BALL SIZED HAIL JUST TO THE NORTHEAST OF NEW BRAUNFELS. |
| Mar 23, 1:31 AM CDT | HAIL 0.75 | 3 Wnw San Marcos, TX | REPORT FROM MPING DIME (0.75 IN.) HAIL NEAR SAN MARCOS. |
| Mar 23, 1:34 AM CDT | HAIL 1 | San Marcos, TX | REPORT FROM MPING NEAR TEXAS STATE UNIVERSITY. |
| Mar 23, 1:52 AM CDT | HAIL 1.5 | 2 Nnw Martindale, TX | NICKEL TO PING PONG BALL SIZE HAIL IN MARTINDALE. REPORTED BY FORMER NWS EMPLOYEE. |
| Mar 23, 1:55 AM CDT | HAIL 1.5 | 2 Nnw Fentress, 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 |
|---|---|---|---|
| Mar 22, 11:10 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 6.4 hours before the alert went out and 246 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
- 59 J/kg
- Mixed-layer CIN
- -468 J/kg
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 235 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
531
WUUS54 KEWX 230626
SVREWX
TXC021-055-091-177-187-209-453-230730-
/O.NEW.KEWX.SV.W.0015.210323T0626Z-210323T0730Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
126 AM CDT Tue Mar 23 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Caldwell County in south central Texas...
Central Hays County in south central Texas...
Northeastern Guadalupe County in south central Texas...
South central Travis County in south central Texas...
Southwestern Bastrop County in south central Texas...
North central Gonzales County in south central Texas...
Northeastern Comal County in south central Texas...
* Until 230 AM CDT.
* At 125 AM CDT, a severe thunderstorm was located near San Marcos,
moving east at 40 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, San Marcos, Kyle, Buda, Lockhart, Bastrop, Luling,
Wimberley, Canyon Lake, Woodcreek, Martindale, Uhland, Mustang
Ridge, Kingsbury, Niederwald, Staples, Fentress, Cedar Creek,
Palmeto State Park and Driftwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2977 9824 2996 9815 3016 9806 3012 9726
2956 9747
TIME...MOT...LOC 0625Z 283DEG 33KT 2988 9805
HAIL...1.00IN
WIND...60MPH
$$
EW3 follow-up statements
892
WWUS54 KEWX 230633
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
133 AM CDT Tue Mar 23 2021
TXC021-055-091-177-187-209-453-230730-
/O.CON.KEWX.SV.W.0015.000000T0000Z-210323T0730Z/
Caldwell TX-Hays TX-Guadalupe TX-Travis TX-Bastrop TX-Gonzales TX-
Comal TX-
133 AM CDT Tue Mar 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR CALDWELL...CENTRAL HAYS...NORTHEASTERN GUADALUPE...SOUTH CENTRAL
TRAVIS...SOUTHWESTERN BASTROP...NORTH CENTRAL GONZALES AND
NORTHEASTERN COMAL COUNTIES...
At 133 AM CDT, a severe thunderstorm was located over San Marcos,
moving east at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
New Braunfels, San Marcos, Kyle, Buda, Lockhart, Bastrop, Luling,
Wimberley, Canyon Lake, Woodcreek, Martindale, Uhland, Mustang Ridge,
Kingsbury, Niederwald, Staples, Fentress, Cedar Creek, Palmeto State
Park and Driftwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2977 9824 2996 9815 3016 9806 3012 9726
2956 9747
TIME...MOT...LOC 0633Z 283DEG 33KT 2986 9796
HAIL...1.75IN
WIND...60MPH
$$
EW051
WWUS54 KEWX 230652
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
152 AM CDT Tue Mar 23 2021
TXC091-230701-
/O.CAN.KEWX.SV.W.0015.000000T0000Z-210323T0730Z/
Comal TX-
152 AM CDT Tue Mar 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COMAL 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 400 AM CDT for
south central Texas.
LAT...LON 2971 9801 2987 9794 3015 9790 3012 9726
2956 9747
TIME...MOT...LOC 0651Z 283DEG 33KT 2982 9777
$$
TXC021-055-177-187-209-453-230730-
/O.CON.KEWX.SV.W.0015.000000T0000Z-210323T0730Z/
Caldwell TX-Hays TX-Guadalupe TX-Travis TX-Bastrop TX-Gonzales TX-
152 AM CDT Tue Mar 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR CALDWELL...SOUTHEASTERN HAYS...NORTHEASTERN GUADALUPE...SOUTH
CENTRAL TRAVIS...SOUTHWESTERN BASTROP AND NORTH CENTRAL GONZALES
COUNTIES...
At 151 AM CDT, a severe thunderstorm was located near Martindale, or
near Lockhart, moving east at 40 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
San Marcos, Kyle, Buda, Lockhart, Bastrop, Luling, Martindale,
Uhland, Mustang Ridge, Kingsbury, Niederwald, Staples, Fentress,
Cedar Creek, Palmeto State Park, Onion Creek, Zorn, Wyldwood,
Geronimo and Manchaca.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2971 9801 2987 9794 3015 9790 3012 9726
2956 9747
TIME...MOT...LOC 0651Z 283DEG 33KT 2982 9777
HAIL...1.50IN
WIND...60MPH
$$
EW486
WWUS54 KEWX 230701
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
201 AM CDT Tue Mar 23 2021
TXC021-055-177-187-209-453-230730-
/O.CON.KEWX.SV.W.0015.000000T0000Z-210323T0730Z/
Caldwell TX-Hays TX-Guadalupe TX-Travis TX-Bastrop TX-Gonzales TX-
201 AM CDT Tue Mar 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR CALDWELL...SOUTHEASTERN HAYS...NORTHEASTERN GUADALUPE...SOUTH
CENTRAL TRAVIS...SOUTHWESTERN BASTROP AND NORTH CENTRAL GONZALES
COUNTIES...
At 201 AM CDT, a severe thunderstorm was located near Lockhart,
moving east at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
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 Marcos, Kyle, Buda, Lockhart, Bastrop, Luling, Martindale,
Uhland, Mustang Ridge, Kingsbury, Niederwald, Staples, Fentress,
Cedar Creek, Palmeto State Park, Onion Creek, Zorn, Wyldwood,
Geronimo and Manchaca.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2971 9801 2987 9794 3015 9790 3012 9726
2956 9747
TIME...MOT...LOC 0701Z 283DEG 33KT 2980 9766
HAIL...1.75IN
WIND...60MPH
$$
EWThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:32 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 58 min |
| Mar 22, 9:02 PM CDT | Special Weather Statement | EWX | Blanco, Gillespie, Llano | 43 min |
| Mar 22, 9:14 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano, Williamson | 61 min |
| Mar 22, 9:16 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Gillespie, Llano | 59 min |
| Mar 22, 9:58 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 62 min |
| Mar 22, 10:05 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Blanco, Comal, Kendall, Kerr | 55 min |
| Mar 22, 10:11 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Gillespie, Hays, Travis | 64 min |
| Mar 22, 10:26 PM CDT | Tornado Warning | EWX | Williamson | 27 min |
| Mar 22, 10:34 PM CDT | Special Weather Statement | EWX | Gillespie | 41 min |
| Mar 22, 10:56 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 41 min |
| Mar 22, 10:57 PM CDT | Special Weather Statement | EWX | Comal, Hays, Kendall | 48 min |
| Mar 22, 11:02 PM CDT | Special Weather Statement | EWX | Travis | 58 min |
| Mar 22, 11:31 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Edwards, Medina, Real, Uvalde | 59 min |
| Mar 22, 11:34 PM CDT | Special Weather Statement | EWX | Bandera, Kendall, Kerr | 41 min |
| Mar 22, 11:44 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Gillespie, Kendall, Kerr, Medina | 61 min |
| Mar 22, 11:55 PM CDT | Special Weather Statement | EWX | Bastrop | 65 min |
| Mar 23, 12:25 AM CDT | Special Weather Statement | EWX | Lee | 65 min |
| Mar 23, 12:25 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina, Uvalde | 65 min |
| Mar 23, 12:35 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Bexar, Blanco, Comal, Hays, Kendall and 1 more | 55 min |
| Mar 23, 1:06 AM CDT | Tornado Warning | EWX | Comal, Guadalupe, Hays | 24 min |
| Mar 23, 1:13 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Bexar, Comal, Guadalupe, Kendall, Medina and 1 more | 62 min |
| Mar 23, 1:19 AM CDT | Special Weather Statement | EWX | Medina | 41 min |
| Mar 23, 1:48 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bexar, Frio, Medina | 34 min |
| Mar 23, 1:58 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Guadalupe | 32 min |
| Mar 23, 2:13 AM CDT | Severe Thunderstorm Warning | EWX | Bexar, Gonzales, Guadalupe, Karnes, Wilson | 26 min |
| Mar 23, 2:16 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lavaca and 1 more | 59 min |
| Mar 23, 3:03 AM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lavaca | 33 min |
| Mar 23, 3:43 AM CDT | Special Weather Statement | EWX | DeWitt, Lavaca | 47 min |
| Mar 23, 4:07 AM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 38 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.