Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 192, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 27, 2021, 4:50 AM CDT for 5 counties in Texas. It was in force for 55 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
- Oct 27, 2021, 4:50 AM CDT (09:50 UTC)
- Expired
- Oct 27, 2021, 5:45 AM CDT
- In force
- 55 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bexar County, TX, Blanco County, TX, Comal County, TX, Hays County, TX, Kendall County, TX
The radar
The Austin/San Antonio radar (KEWX), 38 km from the middle of the area, began a volume at 09:50 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 27, 1:32 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 9.8 hours before the alert went out and 245 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
- 815 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 2315 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted.
676
WUUS54 KEWX 270950
SVREWX
TXC029-031-091-209-259-271045-
/O.NEW.KEWX.SV.W.0192.211027T0950Z-211027T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
450 AM CDT Wed Oct 27 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Hays County in south central Texas...
Southwestern Blanco County in south central Texas...
Kendall County in south central Texas...
Northwestern Bexar County in south central Texas...
Comal County in south central Texas...
* Until 545 AM CDT.
* At 450 AM CDT, severe thunderstorms were located along a line
extending from near Payton to Cross Mountain, moving east at 45
mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
San Antonio, New Braunfels, San Marcos, Schertz, Kyle, Buda,
Boerne, Selma, Wimberley, Blanco, Canyon Lake Dam, Canyon Lake,
Fair Oaks Ranch, Bulverde, Garden Ridge, Hollywood Park, Cross
Mountain, Woodcreek, Guadalupe River State Park and Kendalia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3009 9779 3006 9776 2971 9805 2968 9809
2960 9831 2962 9881 2969 9881 2972 9878
2974 9882 2998 9885 3014 9872 3014 9825
TIME...MOT...LOC 0950Z 266DEG 37KT 3010 9823 2967 9867
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MO2 follow-up statements
563
WWUS54 KEWX 271017
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
517 AM CDT Wed Oct 27 2021
TXC029-031-091-209-259-271045-
/O.CON.KEWX.SV.W.0192.000000T0000Z-211027T1045Z/
Hays TX-Blanco TX-Kendall TX-Bexar TX-Comal TX-
517 AM CDT Wed Oct 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR HAYS...SOUTHWESTERN BLANCO...CENTRAL KENDALL...NORTHWESTERN BEXAR
AND COMAL COUNTIES...
At 517 AM CDT, severe thunderstorms were located along a line
extending from 6 miles northeast of Wimberley to near Hollywood Park,
moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
San Antonio, New Braunfels, San Marcos, Schertz, Kyle, Buda, Boerne,
Selma, Wimberley, Blanco, Canyon Lake Dam, Canyon Lake, Fair Oaks
Ranch, Bulverde, Garden Ridge, Hollywood Park, Cross Mountain,
Woodcreek, Guadalupe River State Park and Kendalia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3009 9779 3006 9776 2971 9805 2968 9809
2960 9831 2962 9881 2969 9881 2972 9878
2974 9882 3014 9858 3014 9825
TIME...MOT...LOC 1017Z 276DEG 35KT 3004 9799 2961 9843
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MO412
WWUS54 KEWX 271044
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
544 AM CDT Wed Oct 27 2021
TXC029-031-091-209-259-271053-
/O.EXP.KEWX.SV.W.0192.000000T0000Z-211027T1045Z/
Hays TX-Blanco TX-Kendall TX-Bexar TX-Comal TX-
544 AM CDT Wed Oct 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR HAYS...SOUTHWESTERN BLANCO...
CENTRAL KENDALL...NORTHWESTERN BEXAR AND COMAL COUNTIES WILL EXPIRE
AT 545 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds up to 50 mph are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
south central Texas.
LAT...LON 3009 9779 3006 9776 2971 9805 2968 9809
2960 9831 2962 9881 2969 9881 2972 9878
2974 9882 3014 9858 3014 9825
TIME...MOT...LOC 1043Z 266DEG 37KT 3005 9777 2962 9821
$$
MOThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 3:41 AM CDT | Special Weather Statement | EWX | Bandera | 64 min |
| Oct 27, 4:03 AM CDT | Special Weather Statement | EWX | Burnet | 57 min |
| Oct 27, 4:05 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kendall, Kerr, Medina, Uvalde | 40 min |
| Oct 27, 4:08 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kendall, Kerr, Medina, Real, Uvalde | 52 min |
| Oct 27, 4:22 AM CDT | Special Weather Statement | EWX | Blanco, Comal, Hays, Travis | 53 min |
| Oct 27, 4:41 AM CDT | Special Weather Statement | EWX | Williamson | 49 min |
| Oct 27, 5:00 AM CDT | Special Weather Statement | EWX | Bexar | 45 min |
| Oct 27, 5:08 AM CDT | Special Weather Statement | EWX | Bastrop, Caldwell, Guadalupe, Travis | 52 min |
| Oct 27, 5:31 AM CDT | Special Weather Statement | EWX | Bastrop, Lee | 59 min |
| Oct 27, 5:49 AM CDT | Special Weather Statement | EWX | Bexar, Guadalupe | 41 min |
| Oct 27, 6:02 AM CDT | Special Weather Statement | EWX | Bastrop, Caldwell | 58 min |
| Oct 27, 6:18 AM CDT | Special Weather Statement | EWX | Gonzales, Guadalupe, Wilson | 57 min |
| Oct 27, 6:43 AM CDT | Special Weather Statement | EWX | Fayette, Gonzales, Lavaca | 62 min |
| Oct 27, 7:45 AM CDT | Special Weather Statement | EWX | DeWitt, Karnes, Lavaca | 30 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.