Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 181, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 28, 2021, 6:31 PM CDT for Maverick County, Zavala County, Texas. It was in force for 31 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
- Sep 28, 2021, 6:31 PM CDT (23:31 UTC)
- Expired
- Sep 28, 2021, 7:02 PM CDT
- In force
- 31 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Maverick County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 41 km from the middle of the area, began a volume at 23:30 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 nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.5 hours before the alert went out and 88 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
- 1637 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1079 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted.
636 WUUS54 KEWX 282331 SVREWX TXC323-507-290015- /O.NEW.KEWX.SV.W.0181.210928T2331Z-210929T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Austin/San Antonio TX 631 PM CDT Tue Sep 28 2021 The National Weather Service in Austin San Antonio has issued a * Severe Thunderstorm Warning for... Northeastern Maverick County in south central Texas... Northwestern Zavala County in south central Texas... * Until 715 PM CDT. * At 631 PM CDT, a severe thunderstorm was located 14 miles south of Dabney, or 14 miles west of La Pryor, moving northeast at 15 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will remain over mainly rural areas of northeastern Maverick and northwestern Zavala Counties. 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 2890 10014 2900 10017 2908 9996 2891 9993 TIME...MOT...LOC 2331Z 247DEG 12KT 2895 10009 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$
3 follow-up statements
129
WWUS54 KEWX 282340
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
640 PM CDT Tue Sep 28 2021
TXC323-507-290015-
/O.CON.KEWX.SV.W.0181.000000T0000Z-210929T0015Z/
Maverick TX-Zavala TX-
640 PM CDT Tue Sep 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHEASTERN MAVERICK AND NORTHWESTERN ZAVALA COUNTIES...
At 640 PM CDT, a severe thunderstorm was located 12 miles west of La
Pryor, moving northeast at 15 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
This severe thunderstorm will remain over mainly rural areas of
northeastern Maverick and northwestern Zavala Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2890 10014 2900 10017 2908 9996 2891 9993
TIME...MOT...LOC 2340Z 247DEG 12KT 2896 10006
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$830
WWUS54 KEWX 282348
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
648 PM CDT Tue Sep 28 2021
TXC323-282356-
/O.CAN.KEWX.SV.W.0181.000000T0000Z-210929T0015Z/
Maverick TX-
648 PM CDT Tue Sep 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MAVERICK COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
northeastern Maverick County. Therefore, the warning has been
cancelled.
LAT...LON 2890 10011 2902 10011 2908 9996 2891 9993
TIME...MOT...LOC 2346Z 247DEG 12KT 2897 10004
$$
TXC507-290015-
/O.CON.KEWX.SV.W.0181.000000T0000Z-210929T0015Z/
Zavala TX-
648 PM CDT Tue Sep 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHWESTERN ZAVALA COUNTY...
At 646 PM CDT, a severe thunderstorm was located 11 miles west of La
Pryor, moving northeast at 15 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
northwestern Zavala County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2890 10011 2902 10011 2908 9996 2891 9993
TIME...MOT...LOC 2346Z 247DEG 12KT 2897 10004
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$666
WWUS54 KEWX 290002
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
702 PM CDT Tue Sep 28 2021
TXC507-290012-
/O.CAN.KEWX.SV.W.0181.000000T0000Z-210929T0015Z/
Zavala TX-
702 PM CDT Tue Sep 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ZAVALA COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
LAT...LON 2890 10011 2902 10011 2908 9996 2891 9993
TIME...MOT...LOC 0000Z 247DEG 12KT 2899 9998
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 4:53 PM CDT | Special Weather Statement | EWX | Kinney | 22 min |
| Sep 28, 5:13 PM CDT | Special Weather Statement | EWX | Maverick | 47 min |
| Sep 28, 6:00 PM CDT | Special Weather Statement | EWX | Kinney | 45 min |
| Sep 28, 6:16 PM CDT | Special Weather Statement | EWX | Llano | 59 min |
| Sep 28, 6:22 PM CDT | Special Weather Statement | EWX | Gillespie | 23 min |
| Sep 28, 6:45 PM CDT | Areal Flood Advisory | EWX | Llano | 3 hr |
| Sep 28, 6:48 PM CDT | Special Weather Statement | EWX | Burnet | 42 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.