Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 58, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 23, 2021, 8:14 PM CDT for 4 counties in Texas. It was in force for 46 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
- Apr 23, 2021, 8:14 PM CDT (01:14 UTC)
- Expired
- Apr 23, 2021, 9:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 82 km from the middle of the area, began a volume at 01:13 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 |
|---|---|---|---|
| Apr 23, 7:05 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 1.2 hours before the alert went out and 151 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
- 1602 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 883 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted.
279
WUUS54 KEWX 240114
SVREWX
TXC123-177-255-493-240200-
/O.NEW.KEWX.SV.W.0058.210424T0114Z-210424T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
814 PM CDT Fri Apr 23 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Southwestern DeWitt County in south central Texas...
Northeastern Karnes County in south central Texas...
Southwestern Gonzales County in south central Texas...
East central Wilson County in south central Texas...
* Until 900 PM CDT.
* At 814 PM CDT, a severe thunderstorm was located near Gillett, or 7
miles northeast of Kosciusko, 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...
Yorktown, Stockdale, Nixon, Pandora, Gillett, Westhoff, Gruenau,
New Davy and Sample.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2892 9739 2892 9743 2916 9803 2931 9800
2918 9731
TIME...MOT...LOC 0114Z 288DEG 35KT 2917 9784
HAIL...0.75IN
WIND...60MPH
$$
BRADY3 follow-up statements
444
WWUS54 KEWX 240133
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
833 PM CDT Fri Apr 23 2021
TXC493-240143-
/O.CAN.KEWX.SV.W.0058.000000T0000Z-210424T0200Z/
Wilson TX-
833 PM CDT Fri Apr 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WILSON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.
LAT...LON 2892 9739 2892 9743 2910 9789 2922 9773
2924 9774 2926 9771 2918 9731
TIME...MOT...LOC 0133Z 288DEG 35KT 2911 9764
$$
TXC123-177-255-240200-
/O.CON.KEWX.SV.W.0058.000000T0000Z-210424T0200Z/
DeWitt TX-Karnes TX-Gonzales TX-
833 PM CDT Fri Apr 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHWESTERN DEWITT...NORTHEASTERN KARNES AND SOUTHWESTERN
GONZALES COUNTIES...
At 833 PM CDT, a severe thunderstorm was located 8 miles east of
Gillett, or 11 miles northwest of Yorktown, 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...
Yorktown, Gillett, Westhoff, Gruenau, New Davy, Ecleto and Sample.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2892 9739 2892 9743 2910 9789 2922 9773
2924 9774 2926 9771 2918 9731
TIME...MOT...LOC 0133Z 288DEG 35KT 2911 9764
HAIL...0.75IN
WIND...60MPH
$$
BRADY302
WWUS54 KEWX 240150
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
850 PM CDT Fri Apr 23 2021
TXC255-240200-
/O.CAN.KEWX.SV.W.0058.000000T0000Z-210424T0200Z/
Karnes TX-
850 PM CDT Fri Apr 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KARNES COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.
LAT...LON 2892 9739 2892 9743 2901 9766 2909 9764
2911 9762 2914 9765 2925 9767 2918 9731
TIME...MOT...LOC 0150Z 278DEG 40KT 2921 9743 2905 9738 2889 9743
$$
TXC123-177-240200-
/O.CON.KEWX.SV.W.0058.000000T0000Z-210424T0200Z/
DeWitt TX-Gonzales TX-
850 PM CDT Fri Apr 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHWESTERN DEWITT AND SOUTH CENTRAL GONZALES COUNTIES...
At 850 PM CDT, severe thunderstorms were located along a line
extending from near Westhoff to 6 miles southwest of Cuero to near
Weesatche, 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...
Yorktown, Westhoff, Gruenau, New Davy and Sample.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2892 9739 2892 9743 2901 9766 2909 9764
2911 9762 2914 9765 2925 9767 2918 9731
TIME...MOT...LOC 0150Z 278DEG 40KT 2921 9743 2905 9738 2889 9743
HAIL...0.75IN
WIND...60MPH
$$
RUNYEN286
WWUS54 KEWX 240158
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
858 PM CDT Fri Apr 23 2021
TXC123-177-240208-
/O.EXP.KEWX.SV.W.0058.000000T0000Z-210424T0200Z/
DeWitt TX-Gonzales TX-
858 PM CDT Fri Apr 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DEWITT AND SOUTH
CENTRAL GONZALES COUNTIES WILL EXPIRE AT 900 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds, heavy rain, and frequent cloud to ground lightning are still
possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.
LAT...LON 2892 9739 2892 9743 2901 9766 2909 9764
2911 9762 2914 9765 2925 9767 2918 9731
TIME...MOT...LOC 0158Z 288DEG 35KT 2920 9739 2904 9734 2888 9739
$$
RUNYENThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 7:16 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Wilson | 29 min |
| Apr 23, 7:32 PM CDT | Special Weather Statement | EWX | Guadalupe | 43 min |
| Apr 23, 7:39 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Karnes | 51 min |
| Apr 23, 7:42 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Wilson | 48 min |
| Apr 23, 8:31 PM CDT | Special Weather Statement | EWX | Karnes | 44 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.