Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Austin/San Antonio, TX

March 22, 20215 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 22, 2021, 11:44 PM CDT for 5 counties in Texas. It was in force for 61 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
Mar 22, 2021, 11:44 PM CDT (04:44 UTC)
Expired
Mar 23, 2021, 12:45 AM CDT
In force
61 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Bandera County, TX, Gillespie County, TX, Kendall County, TX, Kerr County, TX, Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 80 km from the middle of the area, began a volume at 04:47 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

TimeReportWhereRemark
Mar 22, 11:47 PM CDTHAIL 14 Nnw Kerrville, TXPUBLIC REPORT OF QUARTER SIZED HAIL ABOUT 5 MILES NORTH OF KERRVILLE.

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.

IssuedProductOfficeLasted
Mar 22, 6:05 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 22, 11:10 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.7 hours before the alert went out and 198 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-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2021-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1091 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2021-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
1091 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1422 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
225 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

956 
WUUS54 KEWX 230444
SVREWX
TXC019-171-259-265-325-230545-
/O.NEW.KEWX.SV.W.0011.210323T0444Z-210323T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
1144 PM CDT Mon Mar 22 2021

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Northeastern Medina County in south central Texas...
  Bandera County in south central Texas...
  Southern Kerr County in south central Texas...
  South central Gillespie County in south central Texas...
  Kendall County in south central Texas...

* Until 1245 AM CDT.

* At 1144 PM CDT, a severe thunderstorm was located 7 miles south of
  Waltonia, or 10 miles southwest of Kerrville, moving southeast at
  35 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Medina, Kerrville, Boerne, Comfort, Bandera, Fair Oaks Ranch,
  Ingram, Hunt, Walnut Grove, Camp Verde, Bandera Falls,
  Kerrville-Schreiner Park, Mico, Waltonia, Sisterdale, Kreutzberg,
  Pipe Creek, Welfare, Nelson City and Center Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2988 9851 2974 9867 2971 9879 2969 9881
      2961 9881 2946 9898 2995 9958 3025 9900
TIME...MOT...LOC 0444Z 305DEG 31KT 2995 9927 

HAIL...1.50IN
WIND...60MPH
 
$$

EW
2 follow-up statements
781 
WWUS54 KEWX 230504
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1204 AM CDT Tue Mar 23 2021

TXC171-230513-
/O.CAN.KEWX.SV.W.0011.000000T0000Z-210323T0545Z/
Gillespie TX-
1204 AM CDT Tue Mar 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL GILLESPIE 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 200 AM CDT for
south central Texas. A Severe Thunderstorm Watch also remains in
effect until 400 AM CDT for south central Texas.

LAT...LON 2988 9851 2974 9867 2971 9879 2969 9881
      2961 9881 2946 9898 2986 9938 3014 9899
      3014 9893
TIME...MOT...LOC 0503Z 305DEG 31KT 2985 9911 

$$

TXC019-259-265-325-230545-
/O.CON.KEWX.SV.W.0011.000000T0000Z-210323T0545Z/
Medina TX-Bandera TX-Kerr TX-Kendall TX-
1204 AM CDT Tue Mar 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHEASTERN MEDINA...CENTRAL BANDERA...SOUTHEASTERN KERR AND
KENDALL COUNTIES...

At 1203 AM CDT, a severe thunderstorm was located over Camp Verde, or
8 miles north of Bandera, moving southeast at 35 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...
Medina, Kerrville, Boerne, Comfort, Bandera, Fair Oaks Ranch, Walnut
Grove, Camp Verde, Bandera Falls, Kerrville-Schreiner Park, Mico,
Sisterdale, Kreutzberg, Pipe Creek, Welfare, Nelson City, Center
Point, Waring, Lakehills and Cypress Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2988 9851 2974 9867 2971 9879 2969 9881
      2961 9881 2946 9898 2986 9938 3014 9899
      3014 9893
TIME...MOT...LOC 0503Z 305DEG 31KT 2985 9911 

HAIL...1.00IN
WIND...60MPH
 
$$

EW
929 
WWUS54 KEWX 230519
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1219 AM CDT Tue Mar 23 2021

TXC019-259-265-325-230545-
/O.CON.KEWX.SV.W.0011.000000T0000Z-210323T0545Z/
Medina TX-Bandera TX-Kerr TX-Kendall TX-
1219 AM CDT Tue Mar 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHEASTERN MEDINA...EASTERN BANDERA...SOUTHEASTERN KERR AND
SOUTHWESTERN KENDALL COUNTIES...

At 1219 AM CDT, a severe thunderstorm was located near Pipe Creek, or
near Bandera, moving southeast at 35 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...
Boerne, Comfort, Bandera, Fair Oaks Ranch, Walnut Grove, Lakehills,
Camp Verde, Bandera Falls, Sisterdale, Kreutzberg, Pipe Creek,
Welfare, Nelson City, Center Point, Kronkosky State Natural Area,
Waring, Bergheim, Cascade Caverns, Crown and Lake Medina Shores.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2988 9851 2974 9867 2971 9879 2969 9881
      2961 9881 2955 9895 2984 9919 3005 9893
      3010 9886
TIME...MOT...LOC 0519Z 305DEG 31KT 2977 9898 

HAIL...1.00IN
WIND...60MPH
 
$$

EW

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 8:32 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano58 min
Mar 22, 9:02 PM CDTSpecial Weather StatementEWXBlanco, Gillespie, Llano43 min
Mar 22, 9:14 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano, Williamson61 min
Mar 22, 9:16 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Gillespie, Llano59 min
Mar 22, 9:58 PM CDTSevere Thunderstorm WarningEWXBurnet, Williamson62 min
Mar 22, 10:05 PM CDTSevere Thunderstorm WarningEWXBandera, Blanco, Comal, Kendall, Kerr55 min
Mar 22, 10:11 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Gillespie, Hays, Travis64 min
Mar 22, 10:26 PM CDTTornado WarningEWXWilliamson27 min
Mar 22, 10:34 PM CDTSpecial Weather StatementEWXGillespie41 min
Mar 22, 10:56 PM CDTSevere Thunderstorm WarningEWXWilliamson41 min
Mar 22, 10:57 PM CDTSpecial Weather StatementEWXComal, Hays, Kendall48 min
Mar 22, 11:02 PM CDTSpecial Weather StatementEWXTravis58 min
Mar 22, 11:31 PM CDTSevere Thunderstorm WarningEWXBandera, Edwards, Medina, Real, Uvalde59 min
Mar 22, 11:34 PM CDTSpecial Weather StatementEWXBandera, Kendall, Kerr41 min
Mar 22, 11:55 PM CDTSpecial Weather StatementEWXBastrop65 min
Mar 23, 12:25 AM CDTSpecial Weather StatementEWXLee65 min
Mar 23, 12:25 AM CDTSevere Thunderstorm WarningEWXBandera, Medina, Uvalde65 min
Mar 23, 12:35 AM CDTSevere Thunderstorm WarningEWXBandera, Bexar, Blanco, Comal, Hays, Kendall and 1 more55 min
Mar 23, 1:06 AM CDTTornado WarningEWXComal, Guadalupe, Hays24 min
Mar 23, 1:13 AM CDTSevere Thunderstorm WarningEWXBandera, Bexar, Comal, Guadalupe, Kendall, Medina and 1 more62 min
Mar 23, 1:19 AM CDTSpecial Weather StatementEWXMedina41 min
Mar 23, 1:26 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Comal, Gonzales, Guadalupe, Hays and 1 more64 min
Mar 23, 1:48 AM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar, Frio, Medina34 min
Mar 23, 1:58 AM CDTSevere Thunderstorm WarningEWXGonzales, Guadalupe32 min
Mar 23, 2:13 AM CDTSevere Thunderstorm WarningEWXBexar, Gonzales, Guadalupe, Karnes, Wilson26 min
Mar 23, 2:16 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lavaca and 1 more59 min
Mar 23, 3:03 AM CDTSevere Thunderstorm WarningEWXFayette, Lavaca33 min
Mar 23, 3:43 AM CDTSpecial Weather StatementEWXDeWitt, Lavaca47 min
Mar 23, 4:07 AM CDTSevere Thunderstorm WarningEWXLavaca38 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.