Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 180, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 18, 2021, 2:34 PM CDT for 5 counties in Texas. It was in force for 56 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 18, 2021, 2:34 PM CDT (19:34 UTC)
- Expired
- Sep 18, 2021, 3:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Edwards County, TX, Kinney County, TX, Maverick County, TX, Uvalde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 16 km from the middle of the area, began a volume at 19:33 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 7.6 hours before the alert went out and 43 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
- 1210 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1175 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
417
WUUS54 KEWX 181934
SVREWX
TXC137-271-323-463-507-182030-
/O.NEW.KEWX.SV.W.0180.210918T1934Z-210918T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
234 PM CDT Sat Sep 18 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Kinney County in south central Texas...
Northern Maverick County in south central Texas...
Southwestern Uvalde County in south central Texas...
Northwestern Zavala County in south central Texas...
South central Edwards County in south central Texas...
* Until 330 PM CDT.
* At 233 PM CDT, a severe thunderstorm was located near
Brackettville, moving south at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Brackettville, Spofford, Laguna, Blewett, Darling, Washer, Dabney,
Cline, Anacacho, Standart, Alamo Village, Laughlin AFB Aux Field,
Kickapoo Cavern State Park, Turkey Mountain and Fort Clark Springs.
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 2909 10067 2916 10075 2970 10045 2955 10004
2900 9981 2895 10065
TIME...MOT...LOC 1933Z 019DEG 27KT 2935 10031
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MORRIS2 follow-up statements
599
WWUS54 KEWX 181950
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
250 PM CDT Sat Sep 18 2021
TXC137-182000-
/O.CAN.KEWX.SV.W.0180.000000T0000Z-210918T2030Z/
Edwards TX-
250 PM CDT Sat Sep 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL EDWARDS COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 2909 10067 2916 10075 2962 10050 2938 10019
2937 9996 2900 9981 2895 10065
TIME...MOT...LOC 1950Z 019DEG 27KT 2923 10036
$$
TXC271-323-463-507-182030-
/O.CON.KEWX.SV.W.0180.000000T0000Z-210918T2030Z/
Kinney TX-Maverick TX-Uvalde TX-Zavala TX-
250 PM CDT Sat Sep 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR KINNEY...NORTHERN MAVERICK...SOUTHWESTERN UVALDE AND NORTHWESTERN
ZAVALA COUNTIES...
At 250 PM CDT, a severe thunderstorm was located near Anacacho, or
near Spofford, moving south at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Brackettville, Spofford, Blewett, Darling, Washer, Dabney, Cline,
Anacacho, Standart, Alamo Village, Laughlin AFB Aux Field, Turkey
Mountain, Fort Clark Springs and Kickapoo Cavern State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Austin San Antonio.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2909 10067 2916 10075 2962 10050 2938 10019
2937 9996 2900 9981 2895 10065
TIME...MOT...LOC 1950Z 019DEG 27KT 2923 10036
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MORRIS321
WWUS54 KEWX 182007
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
307 PM CDT Sat Sep 18 2021
TXC463-507-182017-
/O.CAN.KEWX.SV.W.0180.000000T0000Z-210918T2030Z/
Uvalde TX-Zavala TX-
307 PM CDT Sat Sep 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN UVALDE AND
NORTHWESTERN ZAVALA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has weakened and
moved out of the area. Therefore, the warning has been cancelled.
LAT...LON 2900 10065 2910 10068 2945 10045 2938 10019
2938 10011 2898 10011 2895 10065
TIME...MOT...LOC 2007Z 019DEG 27KT 2911 10041
$$
TXC271-323-182030-
/O.CON.KEWX.SV.W.0180.000000T0000Z-210918T2030Z/
Kinney TX-Maverick TX-
307 PM CDT Sat Sep 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR SOUTHEASTERN KINNEY AND NORTHERN MAVERICK COUNTIES...
At 307 PM CDT, a severe thunderstorm was located near Spofford,
moving south at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Brackettville, Spofford, Anacacho, Alamo Village, Darling, Turkey
Mountain, Fort Clark Springs and Laughlin AFB Aux Field.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Austin San Antonio.
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 2900 10065 2910 10068 2945 10045 2938 10019
2938 10011 2898 10011 2895 10065
TIME...MOT...LOC 2007Z 019DEG 27KT 2911 10041
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AATThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 1:32 PM CDT | Special Weather Statement | EWX | Real | 43 min |
| Sep 18, 2:03 PM CDT | Special Weather Statement | EWX | Kinney | 42 min |
| Sep 18, 2:24 PM CDT | Special Weather Statement | EWX | Medina, Uvalde | 66 min |
| Sep 18, 3:13 PM CDT | Special Weather Statement | EWX | Val Verde | 62 min |
| Sep 18, 3:27 PM CDT | Special Weather Statement | EWX | Kinney | 63 min |
| Sep 18, 3:33 PM CDT | Special Weather Statement | EWX | Dimmit, Maverick, Zavala | 57 min |
| Sep 18, 3:39 PM CDT | Special Weather Statement | EWX | Fayette, Lavaca | 66 min |
| Sep 18, 3:59 PM CDT | Special Weather Statement | EWX | Val Verde | 46 min |
| Sep 18, 4:18 PM CDT | Special Weather Statement | EWX | Real | 57 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.