Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 109, NWS Austin/San Antonio, TX

May 10, 2021Edwards County, Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2021, 3:44 PM CDT for Edwards County, Real County, 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: May 10, 2021, 3:44 PM CDT (20:44 UTC)
Expired: May 10, 2021, 4:30 PM CDT
In force: 46 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Edwards County, TX, Real County, TX

The radar

The Laughlin AFB radar (KDFX), 92 km from the middle of the area, began a volume at 20:44 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 12:00Z, 8.7 hours before the alert went out and 122 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: 2989 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

249 
WUUS54 KEWX 102044
SVREWX
TXC137-385-102130-
/O.NEW.KEWX.SV.W.0109.210510T2044Z-210510T2130Z/

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

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  East central Edwards County in south central Texas...
  Northern Real County in south central Texas...

* Until 430 PM CDT.

* At 344 PM CDT, a severe thunderstorm was located 8 miles north of
  Vance, or 12 miles southeast of Rocksprings, moving east at 20 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Prade Ranch.

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 this storm. 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.

&&

LAT...LON 3008 9976 3007 9969 2991 9969 2991 9965
      2986 9964 2983 10008 3002 10017 3010 9976
TIME...MOT...LOC 2044Z 258DEG 17KT 2994 10003 

HAIL...1.00IN
WIND...<50MPH
 
$$

KCW

3 follow-up statements

276 
WWUS54 KEWX 102050
SVSEWX

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

TXC137-385-102130-
/O.CON.KEWX.SV.W.0109.000000T0000Z-210510T2130Z/
Edwards TX-Real TX-
350 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR EAST CENTRAL EDWARDS AND NORTHERN REAL COUNTIES...

At 349 PM CDT, a severe thunderstorm was located 9 miles north of
Vance, or 13 miles east of Rocksprings, moving east at 20 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...
Prade Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 3008 9976 3007 9969 2991 9969 2991 9965
      2986 9964 2983 10008 3003 10012 3010 9976
TIME...MOT...LOC 2049Z 258DEG 17KT 2995 10000 

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

KCW

369 
WWUS54 KEWX 102057
SVSEWX

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

TXC137-385-102130-
/O.CON.KEWX.SV.W.0109.000000T0000Z-210510T2130Z/
Edwards TX-Real TX-
357 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR CENTRAL EDWARDS AND NORTHERN REAL COUNTIES...

At 357 PM CDT, a severe thunderstorm was located 8 miles northeast of
Vance, or 16 miles southeast of Rocksprings, moving east at 25 mph.

HAZARD...Two inch 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...
Prade Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 2983 10006 3005 10004 3006 9994 3007 9972
      3007 9969 2991 9969 2991 9965 2986 9964
TIME...MOT...LOC 2057Z 277DEG 22KT 2993 9996 

TORNADO...POSSIBLE
HAIL...2.00IN
WIND...60MPH
 
$$

KCW

481 
WWUS54 KEWX 102114
SVSEWX

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

TXC137-102124-
/O.CAN.KEWX.SV.W.0109.000000T0000Z-210510T2130Z/
Edwards TX-
414 PM CDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL EDWARDS 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 1000 PM CDT for
south central Texas.

LAT...LON 2984 9998 3002 9995 3002 9969 2991 9969
      2991 9965 2986 9964
TIME...MOT...LOC 2114Z 278DEG 19KT 2990 9986 

$$

TXC385-102130-
/O.CON.KEWX.SV.W.0109.000000T0000Z-210510T2130Z/
Real TX-
414 PM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR NORTHERN REAL COUNTY...

At 414 PM CDT, a severe thunderstorm was located 10 miles northwest
of Tuff, or 13 miles northwest of Leakey, moving east at 20 mph.

HAZARD...Golf 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...
Prade Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Continuous cloud to ground lightning is occurring with this storm.
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.

&&

LAT...LON 2984 9998 3002 9995 3002 9969 2991 9969
      2991 9965 2986 9964
TIME...MOT...LOC 2114Z 278DEG 19KT 2990 9986 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH
 
$$

KCW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:08 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Gillespie, Llano	67 min
May 9, 7:47 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Gillespie, Kendall	58 min
May 9, 9:53 PM CDT	Special Weather Statement	EWX	Gillespie	52 min
May 10, 3:19 PM CDT	Special Weather Statement	EWX	Real	41 min
May 10, 4:21 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Kerr, Real	37 min
May 10, 5:56 PM CDT	Special Weather Statement	EWX	Edwards	49 min
May 10, 6:00 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	60 min
May 10, 6:17 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	58 min
May 10, 6:49 PM CDT	Special Weather Statement	EWX	Dimmit, Maverick	41 min
May 10, 6:59 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick, Zavala	61 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.