Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 252, NWS Austin/San Antonio, TX

June 10, 2023Hays County, Travis County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 10, 2023, 4:14 AM CDT for Hays County, Travis County, Texas. It was in force for 31 min. 3 reports 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: Jun 10, 2023, 4:14 AM CDT (09:14 UTC)
Expired: Jun 10, 2023, 4:45 AM CDT
In force: 31 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Hays County, TX, Travis County, TX

The radar

The Austin/San Antonio radar (KEWX), 58 km from the middle of the area, began a volume at 09:14 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
Jun 10, 4:21 AM CDT	HAIL 1.75	5 Nne Dripping Springs, TX	Report from mPING: Golf Ball (1.75 in.).
Jun 10, 4:33 AM CDT	HAIL 1	5 E Dripping Springs, TX
Jun 10, 4:33 AM CDT	HAIL 1	5 Nne Dripping Springs, TX	Report from mPING: Quarter (1.00 in.).

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 9.2 hours before the alert went out and 285 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: 1388 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 1705 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

As transmitted.

302 
WUUS54 KEWX 100914
SVREWX
TXC209-453-100945-
/O.NEW.KEWX.SV.W.0252.230610T0914Z-230610T0945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
414 AM CDT Sat Jun 10 2023

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Northern Hays County in south central Texas...
  Southwestern Travis County in south central Texas...

* Until 445 AM CDT.

* At 414 AM CDT, a severe thunderstorm was located near Bear Creek,
  or near Dripping Springs, moving east at 20 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Austin, Dripping Springs, Tanglewood Forest, Lakeway, Bee Cave,
  West Lake Hills, Rollingwood, Bear Creek, Barton Creek, Shady
  Hollow, Manchaca, Sunset Valley, San Leanna, Hays and Lost Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail 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 3018 9819 3032 9812 3034 9779 3010 9781
TIME...MOT...LOC 0914Z 271DEG 19KT 3024 9800 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

GALE

2 follow-up statements

934 
WWUS54 KEWX 100925
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
425 AM CDT Sat Jun 10 2023

TXC209-453-100945-
/O.CON.KEWX.SV.W.0252.000000T0000Z-230610T0945Z/
Hays TX-Travis TX-
425 AM CDT Sat Jun 10 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CDT
FOR NORTHEASTERN HAYS AND SOUTHWESTERN TRAVIS COUNTIES...

At 424 AM CDT, a severe thunderstorm was located over Bear Creek, or
near Dripping Springs, moving east at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Austin, Dripping Springs, Tanglewood Forest, Bee Cave, West Lake
Hills, Rollingwood, Bear Creek, Barton Creek, Shady Hollow,
Driftwood, Manchaca, Sunset Valley, San Leanna, Hays and Lost Creek.

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 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 3016 9811 3031 9805 3034 9779 3010 9781
TIME...MOT...LOC 0924Z 282DEG 16KT 3021 9797 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GALE

926 
WWUS54 KEWX 100945
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
445 AM CDT Sat Jun 10 2023

TXC209-453-100955-
/O.EXP.KEWX.SV.W.0252.000000T0000Z-230610T0945Z/
Hays TX-Travis TX-
445 AM CDT Sat Jun 10 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAYS AND
SOUTHWESTERN TRAVIS COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However small
hail and heavy rain are still possible with this thunderstorm.

LAT...LON 3016 9811 3031 9805 3034 9779 3010 9781
TIME...MOT...LOC 0945Z 271DEG 19KT 3021 9786 

$$

GALE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 1:24 AM CDT	Special Weather Statement	EWX	Llano	51 min
Jun 10, 1:53 AM CDT	Special Weather Statement	EWX	Gillespie, Llano	52 min
Jun 10, 2:14 AM CDT	Special Weather Statement	EWX	Burnet	46 min
Jun 10, 4:10 AM CDT	Special Weather Statement	EWX	Travis	50 min
Jun 10, 4:48 AM CDT	Areal Flood Advisory	EWX	Hays, Travis	3 hr
Jun 10, 5:37 PM CDT	Special Weather Statement	EWX	Terrell	38 min
Jun 10, 6:15 PM CDT	Special Weather Statement	EWX	Val Verde	45 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023 Every severe thunderstorm warning in 2023

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.