Isolated thunderstorms developed as an upper level shortwave trough moved over the region. One of these storms produced severe wind gusts.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS EWX wrote it up.
Isolated thunderstorms developed as an upper level shortwave trough moved over the region. One of these storms produced severe wind gusts.
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 27, 1:30 PM CST, 3 hours 19 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 230 PM CDT Wed Sep 27 2023 ...New SHORT TERM, LONG TERM... .SHORT TERM... (Tonight through Thursday night) Issued at 201 PM CDT Wed Sep 27 2023 A weak upper level shortwave trough is moving through Central Texas. Convection has developed over the Hill Country in response to this feature. This activity will continue through the afternoon and early evening. There is not much vertical wind shear and we don't expect storms to be very strong. However, as they pulse up and down there may be some strong wind gusts. By mid-evening convection should come to an end leaving a dry forecast overnight. The subtropical ridge will build back over Texas and subsidence from the ridge will suppress any chance for convection through the rest of the short term. There won't be any change in the airmass over South Central Texas and temperatures will continue to be above normal through this period. Lows Thursday and Friday morning will be middle 60s to middle 70s. High temperatures will be from the lower to middle 90s. && .LONG TERM... (Friday through Wednesday) Issued at 201 PM CDT Wed Sep 27 2023 We begin the long term period with mostly more of the same: Hot temperatures in the 90s and a primarily dry forecast. That starts to change this weekend as midlevel ridging slides further southeastward. A large, deepening trough will dig over the Great Basin and transition east over the Four Corners by early next week. This will result in somewhat weak synoptic flow over South Central Texas, at least for the weekend and early next week. Southwest flow aloft should be able to tap into some midlevel moisture from the Pacific, so pop-up showers and storms are possible both Saturday and Sunday afternoons, especially further south and east. The Austin Metro probably has the lowest chance for storms this weekend, with better chances the further south you travel. Beyond the weekend, the upper level trough begins to slide eastward slowly, but without much movement due to weak blocking pattern over the central CONUS. At some point, this trough is expected to eject out over Texas, likely around the middle of next week. Beyond that, models diverge, but ensemble guidance is still par for the course, with near or slightly above normal temps and little change in the southwest flow pattern. That will result in continued weak impulses moving through our region, with slight chance to chance PoPs most days. However, the latest 12Z GFS may be teasing us with our first true cold front of the season as early as next Friday. Only time will tell, but in all honesty, this kind of pattern tends to lead to some big piece of energy breaking off and diving southward at some point, and I can't help by be somewhat ready to buy into what the deterministic 12Z GFS does late next week. && .AVIATION... (18Z TAFS) Issued at 1238 PM CDT Wed Sep 27 2023 The big question for this TAF period is whether any convection affects the terminals. There is slight chance for showers or thunderstorms this afternoon in the San Antonio and Del Rio areas. The better chances are in San Antonio. At this time chances are low and timing is difficult. We have included VCSH for the 21Z to 00Z period. We have not included any mention at DRT or AUS. Otherwise all airports will be VFR. Winds will generally be 10 kts or less. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 72 96 71 97 / 10 10 0 0 Austin Bergstrom Intl Airport 71 96 70 96 / 10 10 0 0 New Braunfels Muni Airport 71 97 71 98 / 10 10 0 0 Burnet Muni Airport 70 94 71 94 / 10 0 0 0 Del Rio Intl Airport 74 97 74 98 / 10 0 0 0 Georgetown Muni Airport 71 95 71 95 / 10 0 0 0 Hondo Muni Airport 70 94 69 95 / 10 10 0 0 San Marcos Muni Airport 70 96 69 97 / 10 10 0 0 La Grange - Fayette Regional 71 93 70 95 / 20 10 0 10 San Antonio Intl Airport 72 95 72 96 / 10 10 0 0 Stinson Muni Airport 73 96 73 97 / 10 10 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Short-Term...05 Long-Term...MMM Aviation...05
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 310 AM CDT Wed Sep 27 2023 TXZ171>173-183>194-202>209-217>225-228-281200- 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- 310 AM CDT Wed Sep 27 2023 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. Isolated to scattered thunderstorms are possible this afternoon. The stronger cells could produce frequent lightning, gusty winds, and brief heavy rainfall. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
Special Weather Statement
National Weather Service Austin/San Antonio TX
327 PM CDT Wed Sep 27 2023
TXZ205-272115-
Bexar TX-
327 PM CDT Wed Sep 27 2023
...A strong thunderstorm will impact portions of northwestern Bexar
County through 415 PM CDT...
At 326 PM CDT, Doppler radar was tracking a strong thunderstorm near
Shavano Park, or 8 miles northwest of San Antonio Int Airport, moving
southwest 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...
San Antonio, Leon Valley, Helotes, Shavano Park, Hollywood Park,
Cross Mountain, Leon Springs, The Dominion, Timberwood Park,
Government Canyon State Natural Area, Castle Hills, Hill Country
Village, Grey Forest, Fiesta Texas, and Scenic Oaks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2975 9855 2962 9841 2945 9861 2963 9877
TIME...MOT...LOC 2026Z 047DEG 9KT 2964 9855
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
27Special Weather Statement
National Weather Service Austin/San Antonio TX
340 PM CDT Wed Sep 27 2023
TXZ218-272130-
Zavala TX-
340 PM CDT Wed Sep 27 2023
...A strong thunderstorm will impact portions of northeastern Zavala
County through 430 PM CDT...
At 339 PM CDT, Doppler radar was tracking a strong thunderstorm near
Batesville, moving south 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...
Batesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2906 9973 2909 9957 2909 9952 2893 9941
2888 9941 2882 9966
TIME...MOT...LOC 2039Z 339DEG 8KT 2901 9960
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
27Special Weather Statement
National Weather Service Austin/San Antonio TX
344 PM CDT Wed Sep 27 2023
TXZ184-185-272130-
Edwards TX-Real TX-
344 PM CDT Wed Sep 27 2023
...A strong thunderstorm will impact portions of northeastern Edwards
and northwestern Real Counties through 430 PM CDT...
At 343 PM CDT, Doppler radar was tracking a strong thunderstorm 11
miles east of Rocksprings, moving south at 15 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...
Devil's Sinkhole State Natural Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3019 10012 3016 9988 2987 9989 2991 10022
TIME...MOT...LOC 2043Z 006DEG 12KT 3007 10003
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
27Special Weather Statement
National Weather Service Austin/San Antonio TX
412 PM CDT Wed Sep 27 2023
TXZ183-184-202-272200-
Kinney TX-Val Verde TX-Edwards TX-
412 PM CDT Wed Sep 27 2023
...A cluster of strong thunderstorms will impact portions of
northern Kinney, southwestern Edwards and east central Val Verde
Counties through 500 PM CDT...
At 411 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms 15 miles north of Alamo Village, or 22 miles north of
Brackettville, moving south at 15 mph.
HAZARD...Wind gusts up to 50 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...
Loma Alta, Carta Valley, and Kickapoo Cavern State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2993 10087 2994 10035 2945 10016 2945 10068
TIME...MOT...LOC 2111Z 344DEG 16KT 2965 10044
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
27Special Weather Statement
National Weather Service Austin/San Antonio TX
456 PM CDT Wed Sep 27 2023
TXZ183>185-202-203-272300-
Uvalde TX-Kinney TX-Val Verde TX-Edwards TX-Real TX-
456 PM CDT Wed Sep 27 2023
...An area of scattered, strong thunderstorms will impact portions
of northern Kinney, northwestern Uvalde, Edwards, eastern Val Verde
and western Real Counties through 600 PM CDT...
At 453 PM CDT, Doppler radar was tracking an area of scattered,
strong thunderstorms across portions of northern Kinney,
northwestern Uvalde, Edwards, eastern Val Verde and western Real
Counties moving south at 20 mph.
HAZARD...Wind gusts up to 50 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...
Del Rio, Rocksprings, Loma Alta, Camp Wood, Laguna, Barksdale, Vance,
Amanda, Laughlin AFB, Montell, Val Verde Park, Alamo Village, Carta
Valley, Standart, Kickapoo Cavern State Park, Us-277 Near The Sutton-
Edwards County Line, Turkey Mountain, Devil's Sinkhole State Natural
Area, Vinegarone, and Escondido Estates.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3029 10000 2935 9988 2934 10083 3029 10115
TIME...MOT...LOC 2153Z 338DEG 16KT 2965 10030
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
27Special Weather Statement
National Weather Service Austin/San Antonio TX
520 PM CDT Wed Sep 27 2023
TXZ202-203-217-272300-
Maverick TX-Uvalde TX-Kinney TX-
520 PM CDT Wed Sep 27 2023
...A cluster of strong thunderstorms will impact portions of
southern Kinney, northwestern Maverick and southwestern Uvalde
Counties through 600 PM CDT...
At 519 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms near Brackettville, moving south 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...
Brackettville, Spofford, Dabney, Blewett, Cline, Anacacho, Standart,
Amanda, Uvalde Estates, Turkey Mountain, Fort Clark Springs, and
Laughlin AFB Aux Field.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2909 10067 2911 10069 2914 10074 2924 10078
2924 10076 2925 10076 2926 10075 2929 10074
2932 10075 2934 10071 2938 10070 2941 9989
2915 9985 2900 10065
TIME...MOT...LOC 2219Z 355DEG 17KT 2936 10042
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
27The Laughlin AFB radar (KDFX), 25 km away, was scanning. The volume nearest the first event began at 22:48 UTC.
1 thunderstorm wind. Local standard time, as filed.
A thunderstorm produced wind gusts measured at 68 mph by the ASOS at the Laughlin AFB Auxiliary field near Spofford.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2023Every state in 2023This day in weather historyWarnings in Texas, September 2023
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: 1140608.