Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 117, NWS Austin/San Antonio, TX

May 10, 2021Bandera County, Medina County, Uvalde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2021, 9:52 PM CDT for Bandera County, Medina County, Uvalde County, Texas. It was in force for 53 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, 9:52 PM CDT (02:52 UTC)
Expired: May 10, 2021, 10:45 PM CDT
In force: 53 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Bandera County, TX, Medina County, TX, Uvalde County, TX

What was reported inside it

Time	Report	Where	Remark
May 10, 10:12 PM CDT	TSTM WND GST 70	2 Wnw Hondo, TX	A WIND GUST OF 70 MPH WAS RECORDED AT THE HONDO MUNICIPAL AIRPORT.

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, 2.9 hours before the alert went out and 164 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

385 
WUUS54 KEWX 110252
SVREWX
TXC019-325-463-110345-
/O.NEW.KEWX.SV.W.0117.210511T0252Z-210511T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
952 PM CDT Mon May 10 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Medina County in south central Texas...
  Southern Bandera County in south central Texas...
  Northeastern Uvalde County in south central Texas...

* Until 1045 PM CDT.

* At 951 PM CDT, severe thunderstorms were located along a line
  extending from near Utopia to near Sabinal, moving east at 30 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Hondo, Castroville, Tarpley, Sabinal, Lacoste, Lakehills, Cliff,
  D'Hanis, Bandera Falls, New Fountain, Quihi, Dunlay, Mico, Pipe
  Creek, Utopia, Hill Country State Natural Area, Rio Medina, Bader,
  Kronkosky State Natural Area and Government Canyon State Natural
  Area.

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 2963 9954 2974 9883 2973 9880 2929 9880
      2924 9946
TIME...MOT...LOC 0251Z 255DEG 27KT 2962 9945 2936 9940 

HAIL...1.00IN
WIND...70MPH
 
$$

BRADY

3 follow-up statements

518 
WWUS54 KEWX 110313
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1013 PM CDT Mon May 10 2021

TXC463-110322-
/O.CAN.KEWX.SV.W.0117.000000T0000Z-210511T0345Z/
Uvalde TX-
1013 PM CDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN UVALDE 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 midnight CDT for
south central Texas.

LAT...LON 2963 9940 2974 9883 2973 9880 2929 9880
      2925 9939
TIME...MOT...LOC 0312Z 256DEG 33KT 2960 9924 2934 9919 

$$

TXC019-325-110345-
/O.CON.KEWX.SV.W.0117.000000T0000Z-210511T0345Z/
Medina TX-Bandera TX-
1013 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR MEDINA AND SOUTHEASTERN BANDERA COUNTIES...

At 1012 PM CDT, severe thunderstorms were located along a line
extending from near Hill Country State Natural Area to Hondo, moving
east at 40 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Hondo, Castroville, Lacoste, Lakehills, Cliff, D'Hanis, Bandera
Falls, New Fountain, Quihi, Dunlay, Mico, Pipe Creek, Hill Country
State Natural Area, Rio Medina, Bader, Kronkosky State Natural Area,
Government Canyon State Natural Area, Lake Medina Shores and San
Geronimo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2963 9940 2974 9883 2973 9880 2929 9880
      2925 9939
TIME...MOT...LOC 0312Z 256DEG 33KT 2960 9924 2934 9919 

HAIL...1.00IN
WIND...70MPH
 
$$

CP

097 
WWUS54 KEWX 110318
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1018 PM CDT Mon May 10 2021

TXC019-325-110345-
/O.CON.KEWX.SV.W.0117.000000T0000Z-210511T0345Z/
Medina TX-Bandera TX-
1018 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR MEDINA AND SOUTHEASTERN BANDERA COUNTIES...

At 1018 PM CDT, severe thunderstorms were located along a line
extending from Hill Country State Natural Area to Hondo, moving east
at 30 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Hondo, Castroville, Lacoste, Lakehills, Cliff, D'Hanis, Bandera
Falls, New Fountain, Quihi, Dunlay, Mico, Pipe Creek, Hill Country
State Natural Area, Rio Medina, Bader, Kronkosky State Natural Area,
Government Canyon State Natural Area, Lake Medina Shores and San
Geronimo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2963 9940 2974 9883 2973 9880 2929 9880
      2925 9939
TIME...MOT...LOC 0318Z 255DEG 27KT 2961 9921 2935 9916 

HAIL...1.25IN
WIND...80MPH
 
$$

CP

062 
WWUS54 KEWX 110346
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1046 PM CDT Mon May 10 2021

TXC019-325-110355-
/O.EXP.KEWX.SV.W.0117.000000T0000Z-210511T0345Z/
Medina TX-Bandera TX-
1046 PM CDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR MEDINA AND SOUTHEASTERN
BANDERA COUNTIES HAS EXPIRED...
            
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 has been allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
south central Texas.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Austin San Antonio.

LAT...LON 2963 9940 2974 9883 2973 9880 2929 9880
      2925 9939
TIME...MOT...LOC 0345Z 255DEG 27KT 2966 9899 2940 9894 

$$

CP

The 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, 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, 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, 2021 Every 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.