Alert archive / Texas / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 164, NWS Austin/San Antonio, TX

May 31, 2024Gillespie County, Llano County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 31, 2024, 6:25 PM CDT for Gillespie County, Llano County, Texas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 31, 2024, 6:25 PM CDT (23:25 UTC)
Expired: May 31, 2024, 7:30 PM CDT
In force: 65 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Gillespie County, TX, Llano County, TX

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 31, 5:23 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.4 hours before the alert went out and 295 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1480 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: -297 m²/s²
0-3 km storm-relative helicity: -240 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 31, 2:51 PM CDT, 3 hours 34 minutes earlier.

Area forecast discussion, May 31, 2:51 PM CDT, 3 hours 34 minutes before

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Hazardous weather outlook, May 31, 1:34 AM CDT, 16 hours 51 minutes before

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
134 AM CDT Fri May 31 2024

TXZ171>173-183>194-202>209-217>225-228-010645-
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde-
Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala-
Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit-
134 AM CDT Fri May 31 2024

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

A round, possibly two, of strong to severe storms and locally
heavy rainfall is possible into Friday morning and again later
Friday as storms arrive from out of the north-northwest. Main
hazards include damaging winds, large hail, and isolated
flooding.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The potential for strong to severe storms, and locally heavy
rains continue at times into the weekend.

Heat will intensify next week to where Heat Advisories may
become needed across portions of the region mid to late week.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to submit reports from any storms into
this weekend.

In the hours before

Special weather statement, May 31, 5:47 PM CDT, 38 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
547 PM CDT Fri May 31 2024

TXZ171-312315-
Llano TX-
547 PM CDT Fri May 31 2024

...A strong thunderstorm will impact portions of northeastern Llano
County through 615 PM CDT...

At 546 PM CDT, Doppler radar was tracking a strong thunderstorm near
Baby Head, or 12 miles north of Llano, moving south at 10 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Buchanan Lake Village, Baby Head, and Tow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.

&&

LAT...LON 3092 9848 3083 9844 3083 9867 3092 9869
TIME...MOT...LOC 2246Z 353DEG 8KT 3091 9860

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

OB

Special weather statement, May 31, 6:11 PM CDT, 14 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
611 PM CDT Fri May 31 2024

TXZ171-172-010000-
Llano TX-Burnet TX-
611 PM CDT Fri May 31 2024

...A strong thunderstorm will impact portions of northern Llano and
west central Burnet Counties through 700 PM CDT...

At 610 PM CDT, Doppler radar was tracking a strong thunderstorm near
Valley Spring, or 8 miles northwest of Llano. This storm was nearly
stationary.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Llano, Buchanan Lake Village, Field Creek, Baby Head, Lone Grove,
Bluffton, Valley Spring, and Tow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.

&&

LAT...LON 3084 9829 3072 9896 3092 9896 3092 9842
      3094 9841 3095 9845 3098 9844 3100 9845
      3100 9844
TIME...MOT...LOC 2310Z 347DEG 4KT 3086 9875

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

OB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 7:09 PM CDT	Areal Flood Advisory	EWX	Williamson	3 hr
May 30, 7:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EWX	Bastrop, Lee, Williamson	60 min
May 30, 8:11 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Lee	9 min
May 30, 10:18 PM CDT	Special Weather Statement	EWX	Kinney	42 min
May 31, 2:57 AM CDT	Special Weather Statement	EWX	Burnet, Llano	63 min
May 31, 3:31 AM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie, Llano	59 min
May 31, 4:00 AM CDT	Special Weather Statement	EWX	Burnet, Williamson	60 min
May 31, 4:21 AM CDT	Special Weather Statement	EWX	Blanco, Gillespie	39 min
May 31, 4:45 AM CDT	Special Weather Statement	EWX	Bastrop, Blanco, Caldwell, Gillespie, Hays, Kendall and 3 more	60 min
May 31, 5:05 AM CDT	Areal Flood Advisory	EWX	Bastrop, Blanco, Burnet, Hays, Llano, Travis and 1 more	4 hr
May 31, 5:39 AM CDT	Special Weather Statement	EWX	Bastrop, Caldwell, Fayette, Lavaca, Lee	81 min
May 31, 5:43 AM CDT	Special Weather Statement	EWX	Gillespie	47 min
May 31, 6:16 AM CDT	Areal Flood Advisory	EWX	Gillespie, Kerr	3 hr
May 31, 6:27 AM CDT	Special Weather Statement	EWX	Gillespie	63 min
May 31, 6:52 AM CDT	Special Weather Statement	EWX	DeWitt, Gonzales, Lavaca	53 min
May 31, 7:20 AM CDT	Areal Flood Advisory	EWX	Gillespie, Kendall, Kerr	3 hr
May 31, 7:22 AM CDT	Special Weather Statement	EWX	Blanco, Kendall	38 min
May 31, 8:05 AM CDT	Special Weather Statement	EWX	Kendall	40 min
May 31, 8:44 AM CDT	Severe Thunderstorm Warning	EWX	Blanco, Comal, Kendall	49 min
May 31, 9:36 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Comal, Gonzales, Guadalupe, Hays	3 hr
May 31, 5:47 PM CDT	Special Weather Statement	EWX	Llano	28 min
May 31, 6:11 PM CDT	Special Weather Statement	EWX	Llano	49 min
May 31, 6:16 PM CDT	Severe Thunderstorm Warning	EWX	Llano	59 min
May 31, 6:41 PM CDT	Areal Flood Advisory	EWX	Llano	4 hr
May 31, 6:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EWX	Blanco, Burnet, Llano	43 min

Nearby

Severe Thunderstorm Warnings in Texas, 2024 Every severe thunderstorm warning in 2024

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.