Texas, 2023

Hail and Damaging Winds in Texas, September 24 to 25, 2023

September 24 to 25, 2023 · NWS EWX · 71 events in 5 counties and zones

Thunderstorms developed along a cold front as it moved southward through South Central Texas. Some of these storms produced large hail and damaging wind gusts.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$600 million
Crop damage
None recorded
Events
71

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS EWX wrote it up.

Thunderstorms developed along a cold front as it moved southward through South Central Texas. Some of these storms produced large hail and damaging wind gusts. One supercell produced giant hail that caused considerable damage from Georgetown to Austin. This storm was part of a complex that caused $1.3 billion in hail damage in Texas, Oklahoma, and Missouri. The damage in Austin, Georgetown, and Round Rock was the most impactful from this system. Estimates from NCEI indicate that 700 million dollars in damages occurred in Texas from these storms. It is being estimated that 300 million dollars of damage occurred in Travis County and 300 million dollars of damage occurred in Williamson County since a county breakdown of damage is not given to NCEI and is not given by insurance companies. Austin American Statesman tells that Round Rock School District estimates 70 million dollars in damages to 62 facilities.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Sep 24, 6:05 PM CST, 35 minutes earlier.

Area forecast discussion, Sep 24, 6:05 PM CST, 35 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Austin/San Antonio TX
705 PM CDT Sun Sep 24 2023

...New AVIATION...

.SHORT TERM...
(Tonight through Monday night)
Issued at 129 PM CDT Sun Sep 24 2023

Synopsis/Mesoanalysis: At 500mb south-central Texas remains in the
northeastern periphery of a ridge with zonal/westerly flow across
the northern portion of the state. A shortwave, currently across the
Panhandle, will quickly move into north and northeast Texas this
afternoon, which will interact with a slow moving cold front at the
surface. This cold front currently extends along a SW to NE line
from just south of KFST to near KLUD. To the south of this boundary,
rapid destabilization has been ongoing late this morning/early this
afternoon with further destabilization forecast to occur through
peak heating. High temperatures of around 100F and dewpoints
generally from 65-70F should lead to 2000-3000 J/kg of MLCAPE across
the forecast area according to SPC Mesoanalysis. Given the proximity
of the ridge to the southwest, shear will be modest, yet sufficient
in the 25-35 kt range later this afternoon with the help of the
aforementioned shortwave. One of the main factors leading to some
forecast uncertainty this afternoon is the presence of weak
CINH/capping. ACARS Soundings out of KAUS have shown this cap around
850mb slowly weakening over the last couple of hours, though it
still remains as of 1815Z. Given the lack of cloud cover across the
region, intense heating is likely to erode the cap by mid-afternoon
across most areas, but as the sun begins to set CINH is expected to
quickly increase again.

This afternoon-overnight: Eyes will be on the northern Hill Country
for initial storm development late this afternoon/early evening,
though a few storms will be possible across the Edwards Plateau and
northern Mexico as well. Storm movement will likely be slow to the
SE through the remainder of the evening before activity begins to
wane by 06z. However, isolated activity continuing overnight cannot
be ruled out across portions of the Hill County/I-35 corridor as the
front and lingering outflow boundaries continue to slowly push
south. There remains a Level 2/5 risk for severe thunderstorms with
this activity, with large hail and damaging wind gusts being the
main threats due to the unstable atmosphere. Tornadoes are not
expected due to small hodographs and weak flow near the front. Heavy
rain will be possible as well with the strongest cells as PWATs will
be near 1.8". While the ongoing drought will greatly limit the
threat for flooding, there is a Level 1/4 risk for excessive
rainfall/flash flooding. Both of these risks are generally across
the northern half of the forecast area.

Tomorrow-tomorrow night: The front will continue into central and
southern portions of the forecast area by tomorrow afternoon. As
destabilization occurs with diurnal heating, widely scattered
thunderstorm activity is expected to develop along and south of the
surface boundary. Increased cloud cover both from the front itself
and today and tonight's convection will limit instability tomorrow
compared to today, but the atmosphere will still be unstable enough
to pose a more isolated risk for severe weather (wind and hail). The
level 1/4 risk for excessive rainfall/flash flooding will continue
as well. Activity should once again wane through the late
evening/overnight hours with potential for continued isolated
activity, mainly across the western portion of the area.

&&

.LONG TERM...
(Tuesday through Sunday)
Issued at 129 PM CDT Sun Sep 24 2023

A broad, weak upper trough axis will be centered to our east to
start the long term period on Tuesday morning, and it's likely that
any remaining sfc cold front will have been pushed to our south by
rounds of convection today and tomorrow. No well-defined upper level
or surface features are forecast the rest of the week in our region.
Although isolated lingering showers and perhaps a thunderstorm will
be possible Tuesday into Wednesday, most locations will remain dry.
Low-end rain chances will return to the Coastal Plains late this
week into the weekend, but rainfall amounts in the long term will be
paltry at best. The expectation is for cooler, but still above
normal temperatures to prevail Tuesday through the rest of the week.
Highs will be mainly in the 90s, with lows in the 60s to lower 70s,
ticking back upwards towards next weekend. Above normal temperatures
will continue into the first week of October.

&&

.AVIATION...
(00Z TAFS)
Issued at 633 PM CDT Sun Sep 24 2023

Convection continues to develop over the Hill Country with some slow
movement toward the I-35 noted. We have pushed back the timing for
the TEMPO group for TSRA at AUS and have opted for only VCTS at SAT
and SSF this evening. Other changes at AUS include a brief mention of
MVFR cigs between 11-15Z. For tomorrow afternoon, convection chances
appear favored from the southern Edwards Plateau, western Hill
Country and Rio Grande plains. We will mention PROB30 groups at SAT
and SSF with VCTS at DRT.

&&

.CLIMATE...
Issued at 257 AM CDT Sun Sep 24 2023

Record High Temperatures and year last reached:

9/23
AUS - 101 (2005)
ATT - 99 (2011)
SAT - 102 (2005)
DRT - 103 (2005)

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              75  95  72  93 /  40  30  20  20
Austin Bergstrom Intl Airport  75  95  72  93 /  30  30  20  20
New Braunfels Muni Airport     76  98  73  95 /  20  40  20  20
Burnet Muni Airport            74  93  70  91 /  50  20  10  10
Del Rio Intl Airport           79 100  75  96 /  20  30  50  20
Georgetown Muni Airport        74  93  71  92 /  50  30  10  10
Hondo Muni Airport             74  97  73  94 /  20  40  30  20
San Marcos Muni Airport        75  96  71  94 /  20  40  20  20
La Grange - Fayette Regional   76  93  73  91 /  30  40  30  20
San Antonio Intl Airport       76  96  74  94 /  20  40  30  20
Stinson Muni Airport           78  98  75  96 /  20  40  40  20

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 7 PM CDT this evening for Atascosa-Bastrop-
Bexar-Caldwell-Comal-De Witt-Fayette-Frio-Gonzales-Guadalupe-Hays-
Karnes-Lavaca-Lee-Medina-Travis-Uvalde-Williamson-Wilson.

&&

Short-Term...Platt
Long-Term...Brady
Aviation...Platt
Hazardous weather outlook, Sep 24, 4:23 PM CST, 2 hours 17 minutes before
Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
523 PM CDT Sun Sep 24 2023

TXZ171>173-183>194-202>209-217>225-228-252230-
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-
523 PM CDT Sun Sep 24 2023

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

.DAY ONE...Tonight.

A slight (level 2/5) risk continues this evening over portions of
Hill Country and the I-35 Corridor, where scattered storms have
begun to develop. A Severe Thunderstorm Watch has been issued by
the Storm Prediction Center through 11 PM for Blanco, Burnet,
Gillespie, Llano, and Williamson Counties. Large hail and
damaging wind gusts will be the main hazards in any severe storms.
Have multiple ways of receiving warning information over this
portion of South-Central Texas this evening.

Dangerous heat & humidity will continue through early evening
along/east of I-35 and over portions of the southern Edwards
Plateau. A Heat Advisory remains in effect through 7 PM.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional showers and thunderstorms are expected across the area
on Monday afternoon. Locally heavy rainfall, gusty winds, and hail
will be possible in this activity. A marginal (level 1/5) risk for
severe thunderstorms continues over most of the area given this
potential, in addition to a marginal (level 1/4) risk for
excessive rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Special weather statement, Sep 24, 4:48 PM CST, 1 hour 52 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
548 PM CDT Sun Sep 24 2023

TXZ171-172-188-190-242330-
Blanco TX-Gillespie TX-Llano TX-Burnet TX-
548 PM CDT Sun Sep 24 2023

...Strong thunderstorms will impact portions of northwestern Blanco,
Gillespie, Llano and Burnet Counties through 630 PM CDT...

At 548 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles west of Lampasas to Tow to near Stolz
to Oxford to 6 miles northeast of Tivydale. Movement was east at 15
mph.

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...
Fredericksburg, Burnet, Marble Falls, Kingsland, Llano, Round
Mountain, Buchanan Dam, Gainesville, Granite Shoals, Horseshoe Bay,
Meadowlakes, Buchanan Lake Village, Stonewall, Highland Haven, Inks
Lake State Park, Blowout, Watson, Bluffton, Rocky Hill, and Lake
Victor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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 3031 9834 3016 9885 3032 9915 3092 9853
      3093 9842 3094 9841 3095 9845 3096 9845
      3098 9844 3100 9845 3103 9842 3104 9794
TIME...MOT...LOC 2248Z 292DEG 12KT 3109 9830 3092 9845 3075 9858 3060
9868 3033 9905

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

CP
Special weather statement, Sep 24, 5:24 PM CST, 1 hour 16 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
624 PM CDT Sun Sep 24 2023

TXZ171-172-188-190-250015-
Blanco TX-Gillespie TX-Llano TX-Burnet TX-
624 PM CDT Sun Sep 24 2023

...Strong thunderstorms will impact portions of northwestern Blanco,
eastern Gillespie, southeastern Llano and southern Burnet Counties
through 715 PM CDT...

At 623 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Burnet to 6 miles
southwest of Kingsland to Enchanted Rock State Natural Area to 6
miles west of Fredericksburg. Movement was east at 10 mph.

HAZARD...Winds in excess of 40 mph and penny 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...
Fredericksburg, Burnet, Marble Falls, Kingsland, Llano, Bertram,
Round Mountain, Buchanan Dam, Gainesville, Granite Shoals, Horseshoe
Bay, Johnson City, Meadowlakes, Buchanan Lake Village, Stonewall,
Highland Haven, Inks Lake State Park, Blowout, Bluffton, and Rocky
Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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 3088 9795 3018 9835 3014 9876 3014 9884
      3027 9910 3065 9879 3088 9844
TIME...MOT...LOC 2323Z 287DEG 10KT 3082 9830 3059 9850 3051 9879 3026
9898

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

CP
Special weather statement, Sep 24, 5:43 PM CST, 57 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
643 PM CDT Sun Sep 24 2023

TXZ171-250030-
Llano TX-
643 PM CDT Sun Sep 24 2023

...A strong thunderstorm will impact portions of central Llano County
through 730 PM CDT...

At 643 PM CDT, Doppler radar was tracking a strong thunderstorm near
Llano, moving east at 10 mph.

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...
Kingsland, Llano, Gainesville, and Oxford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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 3063 9884 3080 9878 3076 9843 3050 9853
TIME...MOT...LOC 2343Z 287DEG 10KT 3070 9873

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

CP
Special weather statement, Sep 24, 5:51 PM CST, 49 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
651 PM CDT Sun Sep 24 2023

TXZ172-173-250030-
Williamson TX-Burnet TX-
651 PM CDT Sun Sep 24 2023

...A strong thunderstorm will impact portions of northwestern
Williamson and northeastern Burnet Counties through 730 PM CDT...

At 651 PM CDT, Doppler radar was tracking a strong thunderstorm near
Briggs, or 9 miles south of Copperas Cove, moving southeast at 20
mph.

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...
Florence, Watson, Andice, and Briggs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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 3103 9790 3091 9783 3090 9777 3088 9767
      3086 9764 3074 9782 3095 9805 3104 9796
      3103 9791
TIME...MOT...LOC 2351Z 317DEG 15KT 3097 9791

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

CP
Special weather statement, Sep 24, 5:58 PM CST, 42 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
658 PM CDT Sun Sep 24 2023

TXZ188-250045-
Gillespie TX-
658 PM CDT Sun Sep 24 2023

...A strong thunderstorm will impact portions of central Gillespie
County through 745 PM CDT...

At 658 PM CDT, Doppler radar was tracking a strong thunderstorm near
Cherry Spring, or 12 miles northwest of Fredericksburg, moving
southeast at 15 mph.

HAZARD...Winds in excess of 40 mph and penny 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...
Fredericksburg, Cherry Spring, and Doss.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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 3032 9871 3014 9894 3043 9918 3050 9910
      3050 9895
TIME...MOT...LOC 2358Z 311DEG 14KT 3041 9901

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

CP
Special weather statement, Sep 24, 6:05 PM CST, 35 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
705 PM CDT Sun Sep 24 2023

TXZ190-250045-
Blanco TX-
705 PM CDT Sun Sep 24 2023

...A strong thunderstorm will impact portions of northern Blanco
County through 745 PM CDT...

At 704 PM CDT, Doppler radar was tracking a strong thunderstorm over
Sandy, or near Round Mountain, moving southeast at 15 mph.

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...
Round Mountain, Johnson City, Sandy, and Pedernales Falls State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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 3034 9857 3048 9844 3034 9819 3009 9836
TIME...MOT...LOC 0004Z 312DEG 12KT 3037 9845

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

CP

The radar

The Austin/San Antonio radar (KEWX), 119 km away, was scanning. The volume nearest the first event began at 00:40 UTC.

Open the radar archive at this moment

Event by event

65 hail, 6 thunderstorm wind. Local standard time, as filed.

Hail, Gillespie

When
September 24, 6:40 PM CST
Where
Gillespie County, 7.69 mi S of Cherry Spg
Measured
1 in hail
Reported by
Broadcast Media
Coordinates
30.370, -99.000

A thunderstorm produced quarter size hail northwest of Fredericksburg.

Hail, Williamson

When
September 24, 6:50 PM CST
Where
Williamson County, 1.38 mi N of Florence
Measured
1 in hail
Reported by
Public
Coordinates
30.850, -97.800

A thunderstorm produced quarter size hail at the intersection of Tomlinson St. and Patterson Ave. in Florence.

Hail, Williamson

When
September 24, 7:24 PM CST
Where
Williamson County, 1.82 mi NE of Georgetown Muni Arpt
Measured
0.88 in hail
Reported by
Trained Spotter
Coordinates
30.700, -97.660

A thunderstorm produced nickel size hail in northern Georgetown.

Hail, Williamson

When
September 24, 7:32 PM CST
Where
Williamson County, 1.37 mi WSW of Georgetown Muni Arpt
Measured
1 in hail
Reported by
Amateur Radio
Coordinates
30.670, -97.700

A thunderstorm produced dime to quarter size hail near the intersection of Serenada Dr. and Williams Dr. in Georgetown.

Hail, Williamson

When
September 24, 7:35 PM CST
Where
Williamson County, 2.38 mi W of Georgetown
Measured
2.5 in hail
Reported by
Public
Coordinates
30.630, -97.710

A thunderstorm produced 2.5 inch diameter hail in western Georgetown.

Hail, Williamson

When
September 24, 7:36 PM CST
Where
Williamson County, 1.82 mi SW of Georgetown
Measured
0.75 in hail
Reported by
Public
Coordinates
30.610, -97.690

A thunderstorm produced penny size hail in Georgetown.

Hail, Williamson

When
September 24, 7:39 PM CST
Where
Williamson County, 3.16 mi WSW of Georgetown
Measured
1 in hail
Reported by
Trained Spotter
Coordinates
30.607, -97.716

A thunderstorm produced quarter size hail along Leander Rd. around 1/2 mile southwest of the Southwest Bypass in Georgetown.

Hail, Williamson

When
September 24, 7:43 PM CST
Where
Williamson County, 2.97 mi W of Weir
Measured
1 in hail
Reported by
Public
Coordinates
30.670, -97.630

A thunderstorm produced quarter size hail between Georgetown and Weir.

Hail, Williamson

When
September 24, 7:44 PM CST
Where
Williamson County, 1.91 mi WNW of Georgetown Muni Arpt
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.690, -97.710

A thunderstorm produced golf ball size hail in Serenada.

Hail, Williamson

When
September 24, 7:45 PM CST
Where
Williamson County, 0.59 mi W of Georgetown
Measured
1.75 in hail
Reported by
Broadcast Media
Coordinates
30.630, -97.680

A thunderstorm produced golf ball size hail in Georgetown.

Hail, Williamson

When
September 24, 7:49 PM CST
Where
Williamson County, 1.37 mi ENE of Georgetown Muni Arpt
Measured
1 in hail
Reported by
Public
Coordinates
30.690, -97.660

A thunderstorm produced quarter size hail in Serenada.

Hail, Williamson

When
September 24, 7:50 PM CST
Where
Williamson County, 0.59 mi W of Georgetown
Measured
2.25 in hail
Reported by
Public
Coordinates
30.630, -97.680

A thunderstorm produced 2.25 inch diameter hail in Georgetown.

Hail, Williamson

When
September 24, 7:50 PM CST
Where
Williamson County, 3.16 mi NW of Round Rock
Measured
1.75 in hail
Reported by
Public
Coordinates
30.530, -97.720

A thunderstorm produced pea to golf ball size hail near the intersection of Sam Bass Rd. and Old Settlers Blvd. in Round Rock.

Hail, Williamson

When
September 24, 7:52 PM CST
Where
Williamson County, 4.19 mi N of Round Rock
Measured
1 in hail
Reported by
Trained Spotter
Coordinates
30.560, -97.690

A thunderstorm produced quarter size hail at the intersection of FM 1431 and I-35 in Round Rock.

Hail, Williamson

When
September 24, 7:54 PM CST
Where
Williamson County, 4.15 mi N of Round Rock
Measured
2.75 in hail
Reported by
Trained Spotter
Coordinates
30.560, -97.680

A thunderstorm produced baseball size hail in Round Rock.

Hail, Williamson

When
September 24, 7:55 PM CST
Where
Williamson County, 3.05 mi WNW of Round Rock
Measured
3.5 in hail
Reported by
Public
Coordinates
30.517, -97.727

A thunderstorm produced 3.5 inch diameter hail in Round Rock.

Hail, Williamson

When
September 24, 7:57 PM CST
Where
Williamson County, 2.83 mi NNW of Round Rock
Measured
3.5 in hail
Reported by
Broadcast Media
Coordinates
30.540, -97.690

A thunderstorm produced 3.5 inch diameter hail in Round Rock. The hail dropped over a car dealership and broke windows and windshields.

Hail, Williamson

When
September 24, 7:58 PM CST
Where
Williamson County, 2.07 mi N of Old Round Rock
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.530, -97.670

A thunderstorm produced golf ball size hail at the intersection of E. Bowman Dr. and Sunrise Rd. in Round Rock.

Hail, Williamson

When
September 24, 8:00 PM CST
Where
Williamson County, 1.38 mi S of Old Round Rock
Measured
3 in hail
Reported by
Utility Company
Coordinates
30.480, -97.670

A thunderstorm produced three inch diameter hail near the intersection of TX 45 and I-35 in Round Rock.

Hail, Williamson

When
September 24, 8:01 PM CST
Where
Williamson County, 5.5 mi ENE of White Stone
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.560, -97.750

A thunderstorm produced golf ball size hail in Round Rock.

Hail, Williamson

When
September 24, 8:03 PM CST
Where
Williamson County, 2.38 mi W of Round Rock
Measured
1 in hail
Reported by
Public
Coordinates
30.500, -97.720

A thunderstorm produced quarter size hail at the intersection of FM 620 and O'Connor Dr. in Brushy Creek.

Hail, Williamson

When
September 24, 8:03 PM CST
Where
Williamson County, 2.98 mi W of Round Rock
Measured
1 in hail
Reported by
Public
Coordinates
30.500, -97.730

A thunderstorm produced quarter size hail in Brushy Creek.

Hail, Williamson

When
September 24, 8:03 PM CST
Where
Williamson County, 4.15 mi N of Round Rock
Measured
1 in hail
Reported by
Public
Coordinates
30.560, -97.680

A thunderstorm produced quarter size hail in Round Rock.

Hail, Williamson

When
September 24, 8:06 PM CST
Where
Williamson County, 4.97 mi NW of Round Rock
Measured
1.75 in hail
Reported by
Public
Coordinates
30.550, -97.740

A thunderstorm produced golf ball size hail in Round Rock.

Hail, Williamson

When
September 24, 8:08 PM CST
Where
Williamson County, 1.38 mi WSW of Round Rock
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.490, -97.700

A thunderstorm produced golf ball size hail in Round Rock.

Thunderstorm Wind, Williamson

When
September 24, 8:09 PM CST
Where
Williamson County, 0.91 mi SW of Round Rock
Measured
61 kt (70 mph) estimated gust
Property damage
$2,000
Reported by
Public
Coordinates
30.490, -97.690

A thunderstorm produced wind gusts estimated at 70 mph that knocked down a large tree off Chisholm Valley Dr. in Round Rock.

Hail, Williamson

When
September 24, 8:13 PM CST
Where
Williamson County, 0.69 mi S of Round Rock
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.490, -97.680

A thunderstorm produced golf ball size hail in Round Rock.

Hail, Travis

When
September 24, 8:13 PM CST
Where
Travis County, 1.79 mi E of Mc Neil
Measured
1 in hail
Reported by
Public
Coordinates
30.450, -97.690

A thunderstorm produced quarter size hail in Wells Branch.

Thunderstorm Wind, Kerr

When
September 24, 8:14 PM CST
Where
Kerr County, 10.19 mi ENE of (Erv)schreiner Fld K
Measured
52 kt (60 mph) measured gust
Reported by
Public
Coordinates
30.050, -98.930

A thunderstorm produced wind gusts measured at 60 mph by a personal weather station just west of the Kerr/Kendall County line north of Comfort.

Hail, Williamson

When
September 24, 8:15 PM CST
Where
Williamson County, 2.07 mi N of Round Rock
Measured
3 in hail
Reported by
Trained Spotter
Coordinates
30.530, -97.680

A thunderstorm produced three inch diameter hail on Heather Dr. in Round Rock.

Hail, Travis

When
September 24, 8:16 PM CST
Where
Travis County, 1.5 mi NNE of Three Pt
Measured
1 in hail
Reported by
Public
Coordinates
30.470, -97.640

A thunderstorm produced quarter size hail in Pflugerville.

Hail, Williamson

When
September 24, 8:17 PM CST
Where
Williamson County, 1.38 mi S of Old Round Rock
Measured
1.5 in hail
Reported by
Public
Coordinates
30.480, -97.670

A thunderstorm produced hail up to the size of ping pong balls in Round Rock.

Hail, Williamson

When
September 24, 8:18 PM CST
Where
Williamson County, 1.71 mi SSW of Round Rock
Measured
2 in hail
Reported by
Trained Spotter
Coordinates
30.479, -97.694

A thunderstorm produced two inch diameter hail at the intersection of CR 172 and TX 45 in Round Rock.

Hail, Travis

When
September 24, 8:18 PM CST
Where
Travis County, 0.91 mi NE of Austin Exec Arpk
Measured
1 in hail
Reported by
Public
Coordinates
30.430, -97.660

A thunderstorm produced quarter size hail in northern Austin.

Hail, Williamson

When
September 24, 8:20 PM CST
Where
Williamson County, 2.75 mi WNW of Round Rock
Measured
2.25 in hail
Reported by
Public
Coordinates
30.520, -97.720

A thunderstorm produced 2.25 inch diameter hail in Brushy Creek.

Hail, Travis

When
September 24, 8:20 PM CST
Where
Travis County, 0.69 mi S of Pflugerville
Measured
3 in hail
Reported by
Public
Coordinates
30.420, -97.620

A thunderstorm produced tea cup size hail in Pflugerville.

Hail, Williamson

When
September 24, 8:21 PM CST
Where
Williamson County, 2.07 mi N of Round Rock
Measured
4 in hail
Property damage
$300 million
Reported by
Public
Coordinates
30.530, -97.680

A thunderstorm produced four inch diameter hail in Round Rock. This storm was part of a complex that caused 700 million dollars in hail damage in Texas. The damage in Austin, Georgetown, and Round Rock was the most impactful from this system and totaled upwards of 600 million dollars in damage across Williamson and Travis counties. Thus 300 million dollars of damage is being listed on this Williamson County entry. An article from the Austin American Statesman tells that Round Rock school district estimated losses of 70 million in damages to 62 facilities.

Hail, Travis

When
September 24, 8:22 PM CST
Where
Travis County, 1.92 mi WNW of North Oaks
Measured
1.5 in hail
Reported by
Amateur Radio
Coordinates
30.390, -97.710

A thunderstorm produced ping pong size hail at Metric Blvd. and W. Braker Ln. in North Austin.

Hail, Travis

When
September 24, 8:22 PM CST
Where
Travis County, 0.91 mi NE of Austin Exec Arpk
Measured
1.5 in hail
Reported by
Public
Coordinates
30.430, -97.660

A thunderstorm produced ping pong ball size hail in northern Austin.

Hail, Travis

When
September 24, 8:23 PM CST
Where
Travis County, 1.38 mi WSW of Austin Exec Arpk
Measured
2 in hail
Reported by
Public
Coordinates
30.410, -97.690

A thunderstorm produced two inch diameter hail in northern Austin.

Thunderstorm Wind, Travis

When
September 24, 8:23 PM CST
Where
Travis County, 3.43 mi SSW of Mc Neil
Measured
56 kt (64 mph) estimated gust
Property damage
$5,000
Reported by
Trained Spotter
Coordinates
30.407, -97.750

A thunderstorm produced wind gusts estimated at 65 mph that blew down several four to five inch diameter tree limbs on Floral Park Dr. west of Jollyville Rd. in northern Austin. Sidewalks and bike lanes were blocked by the downed limbs.

Hail, Travis

When
September 24, 8:25 PM CST
Where
Travis County, 1.38 mi N of Pflugerville
Measured
1 in hail
Reported by
Public
Coordinates
30.450, -97.620

A thunderstorm produced quarter size hail in Pflugerville.

Hail, Williamson

When
September 24, 8:27 PM CST
Where
Williamson County, 1.5 mi NNW of Round Rock
Measured
3.75 in hail
Reported by
Public
Coordinates
30.520, -97.690

A thunderstorm produced 3.75 inch diameter hail in Round Rock.

Hail, Travis

When
September 24, 8:30 PM CST
Where
Travis County, 0.6 mi E of North Oaks
Measured
1.25 in hail
Reported by
Public
Coordinates
30.380, -97.670

A thunderstorm produced half dollar size hail in the North Oaks area of Austin.

Hail, Travis

When
September 24, 8:31 PM CST
Where
Travis County, 1.38 mi ESE of North Oaks
Measured
1 in hail
Reported by
Public
Coordinates
30.370, -97.660

A thunderstorm produced quarter size hail in the North Oaks area of Austin.

Hail, Travis

When
September 24, 8:31 PM CST
Where
Travis County, 0.91 mi SW of Austin Exec Arpk
Measured
2 in hail
Reported by
Public
Coordinates
30.410, -97.680

A thunderstorm produced hen egg size hail in northern Austin.

Hail, Travis

When
September 24, 8:35 PM CST
Where
Travis County, 0.91 mi NE of Austin Exec Arpk
Measured
1 in hail
Reported by
Public
Coordinates
30.430, -97.660

A thunderstorm produced quarter size hail just west of Pflugerville.

Hail, Travis

When
September 24, 8:40 PM CST
Where
Travis County, 0.6 mi W of Fiskville
Measured
1.75 in hail
Reported by
Public
Coordinates
30.350, -97.710

A thunderstorm produced hail up to the size of golf balls near the intersection of N. Lamar Blvd. and Hwy 183 in northern Austin.

Hail, Travis

When
September 24, 8:47 PM CST
Where
Travis County, 0.6 mi W of Fiskville
Measured
1 in hail
Reported by
Public
Coordinates
30.350, -97.710

A thunderstorm produced quarter size hail in northern Austin.

Hail, Travis

When
September 24, 8:49 PM CST
Where
Travis County, 2.07 mi S of Fiskville
Measured
1 in hail
Reported by
Public
Coordinates
30.320, -97.700

A thunderstorm produced quarter size hail in northeastern Austin.

Hail, Travis

When
September 24, 8:50 PM CST
Where
Travis County, 2.48 mi ESE of Austin Mabry
Measured
2.25 in hail
Reported by
Public
Coordinates
30.310, -97.730

A thunderstorm produced 2.25 inch diameter hail near Hyde Park in Austin.

Hail, Travis

When
September 24, 8:55 PM CST
Where
Travis County, 2.27 mi WSW of Fiskville
Measured
3 in hail
Property damage
$300 million
Reported by
Public
Coordinates
30.343, -97.737

A thunderstorm produced three inch diameter hail on Burnet Ln. in the Brentwood area of Austin. This storm was part of a complex that caused 700 million dollars in hail damage in Texas. The damage in Austin, Georgetown, and Round Rock was the most impactful from this system and totaled upwards of 600 million dollars in damage across Williamson and Travis counties. Thus 300 million dollars of damage is being listed on this Travis County entry.

Hail, Travis

When
September 24, 8:57 PM CST
Where
Travis County, 1.38 mi WSW of Fiskville
Measured
1 in hail
Reported by
Public
Coordinates
30.340, -97.720

A thunderstorm produced quarter size hail in northern Austin.

Hail, Travis

When
September 24, 9:00 PM CST
Where
Travis County, 0.84 mi W of Austin
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.271, -97.754

A thunderstorm produced golf ball size hail on Lamar Blvd. in Austin.

Hail, Travis

When
September 24, 9:03 PM CST
Where
Travis County, 0.6 mi W of Fiskville
Measured
1 in hail
Reported by
Public
Coordinates
30.350, -97.710

A thunderstorm produced hail up to the size of quarters near the intersection of N. Lamar Blvd. and Hwy 183 in northern Austin.

Hail, Travis

When
September 24, 9:05 PM CST
Where
Travis County, 0.91 mi NE of Fiskville
Measured
2.25 in hail
Reported by
Public
Coordinates
30.360, -97.690

A thunderstorm produced hen egg size hail in northern Austin.

Hail, Travis

When
September 24, 9:07 PM CST
Where
Travis County, 2.28 mi NE of Austin
Measured
2 in hail
Property damage
$2,000
Reported by
Public
Coordinates
30.295, -97.716

A thunderstorm produced hail up to two inches in diameter near the intersection of Kirkwood Rd. and Wrightwood Rd. in northeastern Austin. The hail broke two house windows, cracked a car windshield, and dented the car.

Hail, Travis

When
September 24, 9:08 PM CST
Where
Travis County, 2.07 mi NNE of Austin
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
30.299, -97.730

A thunderstorm produced golf ball size hail at the intersection of 38th St. and Duval St. in northern Austin.

Hail, Travis

When
September 24, 9:10 PM CST
Where
Travis County, 2.26 mi SW of Fiskville
Measured
2.25 in hail
Reported by
Public
Coordinates
30.330, -97.730

A thunderstorm produced 2.25 inches diameter hail in the Brentwood area of Austin.

Hail, Travis

When
September 24, 9:10 PM CST
Where
Travis County, 2.07 mi S of Fiskville
Measured
2.5 in hail
Reported by
Public
Coordinates
30.320, -97.700

A thunderstorm produced tennis ball size hail in northeastern Austin.

Hail, Travis

When
September 24, 9:10 PM CST
Where
Travis County, 3.16 mi NE of Austin
Measured
2 in hail
Reported by
Public
Coordinates
30.300, -97.700

A thunderstorm produced two inch diameter hail in northeastern Austin.

Hail, Travis

When
September 24, 9:11 PM CST
Where
Travis County, 2.16 mi SSE of Fiskville
Measured
1 in hail
Reported by
Public
Coordinates
30.320, -97.690

A thunderstorm produced quarter size hail in northeastern Austin.

Hail, Travis

When
September 24, 9:17 PM CST
Where
Travis County, Austin
Measured
2.5 in hail
Reported by
Public
Coordinates
30.270, -97.740

A thunderstorm produced tennis ball size hail in Austin.

Hail, Travis

When
September 24, 9:17 PM CST
Where
Travis County, 2.07 mi N of Austin
Measured
2.5 in hail
Reported by
Trained Spotter
Coordinates
30.300, -97.740

A thunderstorm produced tennis ball size hail in central Austin.

Hail, Travis

When
September 24, 9:19 PM CST
Where
Travis County, 2.76 mi ENE of Austin
Measured
1.5 in hail
Reported by
Public
Coordinates
30.290, -97.700

A thunderstorm produced ping pong ball size hail in the Mueller area of Austin.

Hail, Travis

When
September 24, 9:29 PM CST
Where
Travis County, 1.92 mi WSW of Fiskville
Measured
2.5 in hail
Reported by
Public
Coordinates
30.340, -97.730

A thunderstorm produced tennis ball size hail in the Brentwood area of Austin.

Hail, Travis

When
September 24, 9:44 PM CST
Where
Travis County, 3.16 mi NE of Austin
Measured
2 in hail
Reported by
Public
Coordinates
30.300, -97.700

A thunderstorm produced hen egg size hail in the Mueller area of Austin.

Hail, Kerr

When
September 24, 11:00 PM CST
Where
Kerr County, 2.07 mi N of Hunt
Measured
1.75 in hail
Reported by
CoCoRaHS
Coordinates
30.100, -99.330

A thunderstorm produced golf ball size hail north of Hunt.

Thunderstorm Wind, Bandera

When
September 25, 2:09 AM CST
Where
Bandera County, 5.54 mi WNW of Bandera
Measured
56 kt (64 mph) measured gust
Reported by
Public
Coordinates
29.760, -99.150

A thunderstorm produced wind gusts measured at 65 mph at the Rock Cliff Reservoir weather station between Bandera and Medina.

Thunderstorm Wind, Bandera

When
September 25, 2:14 AM CST
Where
Bandera County, 6.4 mi NW of Bandera
Measured
52 kt (60 mph) measured gust
Reported by
Public
Coordinates
29.790, -99.140

A thunderstorm produced wind gusts measured at 60 mph by a personal weather station near FM 3240 and Panther Hollow Dr. between Bandera and Medina.

Thunderstorm Wind, Bandera

When
September 25, 2:15 AM CST
Where
Bandera County, 4.99 mi WNW of Bandera
Measured
61 kt (70 mph) estimated gust
Property damage
$25,000
Reported by
Public
Coordinates
29.740, -99.150

A thunderstorm produced wind gusts estimated at 70 mph that blew down at least ten trees and some power poles on Hwy 16 between Bandera and Medina.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Texas in 2023Every state in 2023This day in weather historyWarnings in Texas, September 2023

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1140402, 1140403, 1140404, 1140405, 1140406, 1140407, 1140408, 1140409, 1140411, 1140412, 1140450, 1140451, 1140452, 1140453, 1140454, 1142710, 1140460, 1140463, 1140466, 1140468, 1140471, 1140472, 1140473, 1140474, 1140475, 1140484, 1140487, 1140488, 1140496, 1140512, 1140519, 1140524, 1140528, 1140529, 1140532, 1140533, 1140534, 1140535, 1140536, 1140568, and more.