Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 116, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2021, 8:58 PM CDT for 7 counties in Texas. It was in force for 62 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
- May 10, 2021, 8:58 PM CDT (01:58 UTC)
- Expired
- May 10, 2021, 10:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Bandera County, TX, Edwards County, TX, Kerr County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Uvalde County, TX
The radar
The Laughlin AFB radar (KDFX), 53 km from the middle of the area, began a volume at 02:01 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 |
|---|---|---|---|
| May 10, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.0 hours before the alert went out and 105 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
- 3006 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.1
The text
As transmitted.
495
WUUS54 KEWX 110158
SVREWX
TXC019-137-265-271-325-385-463-110300-
/O.NEW.KEWX.SV.W.0116.210511T0158Z-210511T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
858 PM CDT Mon May 10 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Medina County in south central Texas...
Bandera County in south central Texas...
Southern Kerr County in south central Texas...
Northeastern Kinney County in south central Texas...
Uvalde County in south central Texas...
Southeastern Edwards County in south central Texas...
Real County in south central Texas...
* Until 1000 PM CDT.
* At 858 PM CDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Laguna to near Uvalde, moving
northeast at 55 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Medina, Uvalde, Bandera, Leakey, Vanderpool, Tarpley, Sabinal, Camp
Wood, Laguna, Barksdale, Tuff, Concan, Vance, Uvalde Estates,
Cline, Reagan Wells, Utopia, Knippa, Blewett and Rio Frio.
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 these storms. 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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2909 9986 2930 10024 3009 9997 2980 9892
2909 9972
TIME...MOT...LOC 0158Z 218DEG 46KT 2946 10011 2922 9969
TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
$$
BRADY2 follow-up statements
070 WWUS54 KEWX 110217 SVSEWX Severe Weather Statement National Weather Service Austin/San Antonio TX 917 PM CDT Mon May 10 2021 TXC137-271-110227- /O.CAN.KEWX.SV.W.0116.000000T0000Z-210511T0300Z/ Kinney TX-Edwards TX- 917 PM CDT Mon May 10 2021 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KINNEY AND SOUTHEASTERN EDWARDS COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for south central Texas. LAT...LON 2914 9966 2948 10006 3004 9980 2980 9892 TIME...MOT...LOC 0217Z 244DEG 29KT 2956 9983 2937 9963 $$ TXC019-265-325-385-463-110300- /O.CON.KEWX.SV.W.0116.000000T0000Z-210511T0300Z/ Medina TX-Bandera TX-Kerr TX-Uvalde TX-Real TX- 917 PM CDT Mon May 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHWESTERN MEDINA...BANDERA...SOUTHERN KERR...NORTHEASTERN UVALDE AND REAL COUNTIES... At 917 PM CDT, severe thunderstorms were located along a line extending from Reagan Wells to near Knippa, moving northeast at 35 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Medina, Uvalde, Bandera, Leakey, Vanderpool, Tarpley, Sabinal, Knippa, Tuff, Rio Frio, Concan, Montell, Garner State Park, Reagan Wells, Utopia, Hill Country State Natural Area, Lost Maples State Natural Area and Prade Ranch. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with these storms. 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 these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 2914 9966 2948 10006 3004 9980 2980 9892 TIME...MOT...LOC 0217Z 244DEG 29KT 2956 9983 2937 9963 HAIL...0.88IN WIND...60MPH $$ BRADY
260
WWUS54 KEWX 110243
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
943 PM CDT Mon May 10 2021
TXC265-385-110253-
/O.CAN.KEWX.SV.W.0116.000000T0000Z-210511T0300Z/
Kerr TX-Real TX-
943 PM CDT Mon May 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN KERR AND REAL
COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
south central Texas.
LAT...LON 2917 9964 2963 9965 2963 9960 2970 9960
2988 9921 2979 9894 2917 9962
TIME...MOT...LOC 0243Z 262DEG 35KT 2962 9955 2926 9943
$$
TXC019-325-463-110300-
/O.CON.KEWX.SV.W.0116.000000T0000Z-210511T0300Z/
Medina TX-Bandera TX-Uvalde TX-
943 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTHWESTERN MEDINA...CENTRAL BANDERA AND EASTERN UVALDE
COUNTIES...
At 943 PM CDT, severe thunderstorms were located along a line
extending from near Utopia to near Sabinal, moving east at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Medina, Bandera, Tarpley, Sabinal, Knippa, Utopia and Hill Country
State Natural Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2917 9964 2963 9965 2963 9960 2970 9960
2988 9921 2979 9894 2917 9962
TIME...MOT...LOC 0243Z 262DEG 35KT 2962 9955 2926 9943
HAIL...0.88IN
WIND...60MPH
$$
BRADYThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 7:14 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 16 min |
| May 10, 7:49 PM CDT | Areal Flood Advisory | EWX | Dimmit, Maverick | 3 hr |
| May 10, 7:55 PM CDT | Special Weather Statement | EWX | Kinney | 50 min |
| May 10, 8:00 PM CDT | Special Weather Statement | EWX | Dimmit, Maverick, Zavala | 45 min |
| May 10, 8:06 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Maverick, Real, Uvalde, Zavala | 54 min |
| May 10, 8:31 PM CDT | Tornado Warning | EWX | Kinney, Uvalde | 16 min |
| May 10, 8:52 PM CDT | Special Weather Statement | EWX | Frio, Zavala | 38 min |
| May 10, 9:09 PM CDT | Areal Flood Advisory | EWX | Dimmit, Zavala | 3 hr |
| May 10, 9:20 PM CDT | Areal Flood Advisory | EWX | Kinney, Maverick, Uvalde, Zavala | 3 hr |
| May 10, 9:30 PM CDT | Special Weather Statement | EWX | Frio, Medina | 60 min |
| May 10, 9:52 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina, Uvalde | 53 min |
| May 10, 10:42 PM CDT | Areal Flood Advisory | EWX | Medina, Uvalde | 3 hr |
| May 10, 10:45 PM CDT | Special Weather Statement | EWX | Bexar | 45 min |
| May 10, 11:17 PM CDT | Special Weather Statement | EWX | Bexar | 43 min |
| May 11, 3:51 PM CDT | Areal Flood Advisory | EWX | Kendall | 2 hr |
| May 11, 4:03 PM CDT | Special Weather Statement | EWX | Atascosa | 42 min |
| May 11, 4:23 PM CDT | Special Weather Statement | EWX | Caldwell | 52 min |
| May 11, 4:24 PM CDT | Special Weather Statement | EWX | Guadalupe | 51 min |
| May 11, 4:45 PM CDT | Special Weather Statement | EWX | Atascosa | 45 min |
| May 11, 4:59 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bexar, Wilson | 61 min |
| May 11, 5:20 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 25 min |
| May 11, 5:30 PM CDT | Areal Flood Advisory | EWX | Atascosa, Bexar, Frio, Medina | 3 hr |
| May 11, 5:46 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Medina | 44 min |
| May 11, 5:47 PM CDT | Special Weather Statement | EWX | Guadalupe | 43 min |
| May 11, 6:13 PM CDT | Special Weather Statement | EWX | Wilson | 47 min |
| May 11, 6:31 PM CDT | Special Weather Statement | EWX | Dimmit | 44 min |
| May 11, 6:36 PM CDT | Special Weather Statement | EWX | Frio, Medina | 39 min |
| May 11, 6:46 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Karnes, Wilson | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.