Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 21, NWS Austin/San Antonio, TX

March 2, 20235 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 2, 2023, 6:51 PM CST for 5 counties in Texas. It was in force for 54 min. 4 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: Mar 2, 2023, 6:51 PM CST (00:51 UTC)
Expired: Mar 2, 2023, 7:45 PM CST
In force: 54 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Blanco County, TX, Burnet County, TX, Hays County, TX, Travis County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 31 km from the middle of the area, began a volume at 00:55 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
Mar 2, 7:15 PM CST	TSTM WND GST 58	2 N Dripping Springs, TX	CORRECTS PREVIOUS TSTM WND GST REPORT FROM 2 N DRIPPING SPRINGS. 58 MPH WIND GUST APPROXIMATELY AROUND 7:15 PM BASED ON RADAR AT THE DRIPPING SPRINGS NORTH RAWS SITE.
Mar 2, 7:26 PM CST	TSTM WND GST 59	Georgetown, TX	GUST OF 59 MPH REPORTED.
Mar 2, 7:30 PM CST	HAIL 0.75	1 Nnw Bee Cave, TX	REPORT FROM MPING DIME (0.75 IN.).
Mar 2, 7:41 PM CST	TSTM WND GST 58	Austin Bergstrom Intl A, TX

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
Mar 2, 5:08 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.9 hours before the alert went out and 252 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: 1958 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 967 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

As transmitted.

100 
WUUS54 KEWX 030051
SVREWX
TXC031-053-209-453-491-030145-
/O.NEW.KEWX.SV.W.0021.230303T0051Z-230303T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
651 PM CST Thu Mar 2 2023

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Williamson County in south central Texas...
  Central Hays County in south central Texas...
  Travis County in south central Texas...
  Central Blanco County in south central Texas...
  Central Burnet County in south central Texas...

* Until 745 PM CST.

* At 650 PM CST, severe thunderstorms were located along a line
  extending from near Kempner to Bertram to near Flugrath, moving
  east at 55 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near...
  Bertram, Oatmeal, Joppa and Shady Grove around 655 PM CST.
  Leander, Liberty Hill and Mahomet around 700 PM CST.
  Payton and Andice around 705 PM CST.
  Florence, Sun City, Henly and Georgetown Dam around 710 PM CST.
  Serenada around 715 PM CST.
  Dripping Springs, Jarrell, Weir and Driftwood around 720 PM CST.
  Bear Creek around 725 PM CST.
  Granger, Bartlett and Shady Hollow around 730 PM CST.

Other locations impacted by these severe thunderstorms include
Mountain City, Laneport, Garfield, Creedmoor, Maha, Wells Branch,
Waterloo, Manchaca, Schwertner and McKinney Falls State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3091 9783 3087 9762 3074 9727 3046 9716
      3040 9733 3042 9737 3020 9750 3003 9770
      3004 9850 3104 9799 3103 9791
TIME...MOT...LOC 0050Z 267DEG 50KT 3103 9791 3073 9806 3014 9852 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

RUNYEN

1 follow-up statement

449 
WWUS54 KEWX 030120
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
720 PM CST Thu Mar 2 2023

TXC031-053-030130-
/O.CAN.KEWX.SV.W.0021.000000T0000Z-230303T0145Z/
Blanco TX-Burnet TX-
720 PM CST Thu Mar 2 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BLANCO AND CENTRAL
BURNET COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 3087 9762 3074 9727 3046 9716 3040 9732
      3042 9737 3020 9750 3003 9770 3004 9830
      3050 9810 3050 9812 3076 9798 3091 9783
TIME...MOT...LOC 0120Z 270DEG 46KT 3105 9757 3070 9767 3016 9806 

$$

TXC209-453-491-030145-
/O.CON.KEWX.SV.W.0021.000000T0000Z-230303T0145Z/
Williamson TX-Hays TX-Travis TX-
720 PM CST Thu Mar 2 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR WILLIAMSON...CENTRAL HAYS AND TRAVIS COUNTIES...

At 720 PM CST, severe thunderstorms were located along a line
extending from near Nolanville to Serenada to near Dripping Springs,
moving east at 55 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe storms will be near...
  Serenada and Weir around 725 PM CST.
  Buda, Granger and Tanglewood Forest around 735 PM CST.
  Austin, Taylor, Bartlett and Onion Creek around 740 PM CST.
  Austin Bergstrom Int Airport, Thrall and Granger Dam around 745 PM 
  CST.
  Mustang Ridge around 750 PM CST.

Other locations impacted by these severe thunderstorms include
Mountain City, Laneport, Garfield, Creedmoor, Maha, Wells Branch,
Waterloo, Manchaca, Schwertner and McKinney Falls State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3087 9762 3074 9727 3046 9716 3040 9732
      3042 9737 3020 9750 3003 9770 3004 9830
      3050 9810 3050 9812 3076 9798 3091 9783
TIME...MOT...LOC 0120Z 270DEG 46KT 3105 9757 3070 9767 3016 9806 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

RUNYEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 6:09 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie, Llano	66 min
Mar 2, 6:14 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Blanco, Gillespie, Kendall, Kerr	61 min
Mar 2, 7:07 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Blanco, Kendall, Kerr, Medina	68 min
Mar 2, 7:17 PM CST	Tornado Warning	EWX	Williamson	43 min
Mar 2, 7:38 PM CST	Severe Thunderstorm Warning	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays	67 min
Mar 2, 7:44 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, Hays, Lee, Travis, Williamson	61 min
Mar 2, 8:00 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Wilson	60 min
Mar 2, 8:03 PM CST	Special Weather Statement	EWX	Atascosa, Karnes	42 min
Mar 2, 8:34 PM CST	Special Weather Statement	EWX	Fayette	56 min
Mar 2, 8:42 PM CST	Special Weather Statement	EWX	Bastrop, Lee	48 min
Mar 2, 8:43 PM CST	Severe Thunderstorm Warning	EWX	Bexar, Guadalupe, Wilson	32 min
Mar 2, 8:53 PM CST	Severe Thunderstorm Warning	EWX	Caldwell, Fayette, Gonzales, Guadalupe, Lavaca	55 min
Mar 2, 8:57 PM CST	Special Weather Statement	EWX	DeWitt, Karnes	48 min
Mar 2, 9:22 PM CST	Severe Thunderstorm Warning	EWX	Fayette, Lavaca	26 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.