Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 115, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2021, 8:06 PM CDT for 6 counties in Texas. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 10, 2021, 8:06 PM CDT (01:06 UTC)
- Expired
- May 10, 2021, 9:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Edwards County, TX, Kinney County, TX, Maverick County, TX, Real County, TX, Uvalde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 43 km from the middle of the area, began a volume at 01:05 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 8:53 PM CDT | HAIL 0.25 | 18 W Uvalde, TX | PEA SIZE HAIL IN CLINE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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, 1.1 hours before the alert went out and 95 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.
195
WUUS54 KEWX 110106
SVREWX
TXC137-271-323-385-463-507-110200-
/O.NEW.KEWX.SV.W.0115.210511T0106Z-210511T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
806 PM CDT Mon May 10 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Eastern Kinney County in south central Texas...
Northeastern Maverick County in south central Texas...
Uvalde County in south central Texas...
Northwestern Zavala County in south central Texas...
South central Edwards County in south central Texas...
Southern Real County in south central Texas...
* Until 900 PM CDT.
* At 806 PM CDT, severe thunderstorms were located along a line
extending from near Darling to 14 miles northwest of Cometa, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Uvalde, Leakey, Spofford, Camp Wood, Laguna, Knippa, Blewett,
Barksdale, Rio Frio, Concan, Darling, Washer, Uvalde Estates,
Montell, Dabney, Cline, Garner State Park, Anacacho, Reagan Wells
and Utopia.
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 2903 10048 2986 10018 2966 9960 2963 9960
2963 9951 2959 9941 2949 9941 2873 10007
TIME...MOT...LOC 0106Z 203DEG 43KT 2903 10040 2885 10015
HAIL...1.00IN
WIND...60MPH
$$
BRADY1 follow-up statement
152
WWUS54 KEWX 110143
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
843 PM CDT Mon May 10 2021
TXC323-110152-
/O.CAN.KEWX.SV.W.0115.000000T0000Z-210511T0200Z/
Maverick TX-
843 PM CDT Mon May 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MAVERICK COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central Texas.
LAT...LON 2905 10011 2909 10012 2908 10019 2918 10043
2986 10018 2966 9960 2963 9960 2963 9950
2959 9941 2949 9941 2896 9988
TIME...MOT...LOC 0142Z 230DEG 41KT 2941 10021 2921 9978
$$
TXC137-271-385-463-507-110200-
/O.CON.KEWX.SV.W.0115.000000T0000Z-210511T0200Z/
Kinney TX-Uvalde TX-Zavala TX-Edwards TX-Real TX-
843 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR EASTERN KINNEY...UVALDE...NORTHWESTERN ZAVALA...SOUTH CENTRAL
EDWARDS AND SOUTHERN REAL COUNTIES...
At 842 PM CDT, severe thunderstorms were located along a line
extending from 11 miles northwest of Cline to Uvalde, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Uvalde, Leakey, Spofford, Camp Wood, Laguna, Knippa, Blewett,
Barksdale, Rio Frio, Concan, Washer, Uvalde Estates, Montell, Dabney,
Cline, Garner State Park, Anacacho, Reagan Wells, Utopia and Turkey
Mountain.
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 2905 10011 2909 10012 2908 10019 2918 10043
2986 10018 2966 9960 2963 9960 2963 9950
2959 9941 2949 9941 2896 9988
TIME...MOT...LOC 0142Z 230DEG 41KT 2941 10021 2921 9978
TORNADO...POSSIBLE
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, 8:31 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, 8:58 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Edwards, Kerr, Kinney, Medina, Real and 1 more | 62 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.