An upper level shortwave trough moved through West Texas and interacted with a dryline to generate thunderstorms. The airmass was strongly unstable with only modest vertical wind shear and high precipitable water. Storms evolved into a line as they moved across South Central Texas producing large hail, damaging wind gusts, and one tornado. They also produced heavy rain that led to flash flooding.

Tornado in BEXAR, TEXAS
From 24-MAY-20 19:11:00 to 24-MAY-20 19:12:00 (CST-6)
Location: HELOTES
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS damage survey concluded that a small EF1 tornado touched down in the Wildhorse subdivision, between Loop 1604 and the Government Canyon State Natural area on the west side of Bexar County.  A large severe storm was moving northeast through the area just after 7 PM when it appears a tornado developed near the Flying Fury Dr. cul-de-sac and neighborhood drainage ditch.  There was minor damage on Flying Fury with substantial roof damage to several homes on the east side of Palomino Path as the tornado moved northeast.  Several of the homes had broken windows, large sections of roof lifted off,  along with puncture marks from flying debris on many of the exterior walls. The maximum winds were reached at this location and were estimated to be 100 mph. The tornado continued moving northeast, taking down a fence at the end of Palomino Path before likely dissipating near the Wildhorse HOA Sports Park and open field/drainage area.

Thunderstorm Wind in BEXAR, TEXAS
From 24-MAY-20 07:10:00 to 24-MAY-20 07:10:00 (CST-6)
Location: HELOTES
Magnitude: 65.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced wind gusts estimated at 75 mph that displaced a fence and damaged a gazebo in the Waterford Park neighborhood in Helotes.

Hail in TRAVIS, TEXAS
From 24-MAY-20 14:27:00 to 24-MAY-20 14:27:00 (CST-6)
Location: MANOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in Manor. This report came from mPING.

Hail in TRAVIS, TEXAS
From 24-MAY-20 14:33:00 to 24-MAY-20 14:33:00 (CST-6)
Location: MANDA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A thunderstorm produced quarter to half dollar size hail around Manor. Reports came from amateur radio and mPING.

Hail in BASTROP, TEXAS
From 24-MAY-20 14:55:00 to 24-MAY-20 14:55:00 (CST-6)
Location: SAYERSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A thunderstorm produced quarter size hail near Camp Swift.

Hail in LEE, TEXAS
From 24-MAY-20 15:16:00 to 24-MAY-20 15:16:00 (CST-6)
Location: GIDDINGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail just west of Giddings.

Hail in TRAVIS, TEXAS
From 24-MAY-20 16:58:00 to 24-MAY-20 16:58:00 (CST-6)
Location: VINSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in South Austin.

Hail in TRAVIS, TEXAS
From 24-MAY-20 16:58:00 to 24-MAY-20 16:58:00 (CST-6)
Location: VINSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced half dollar size hail in South Austin. This report was from mPING.

Hail in TRAVIS, TEXAS
From 24-MAY-20 17:00:00 to 24-MAY-20 17:00:00 (CST-6)
Location: VINSON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

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

Hail in TRAVIS, TEXAS
From 24-MAY-20 17:05:00 to 24-MAY-20 17:05:00 (CST-6)
Location: VINSON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail in South Austin. This report was from mPING.

Hail in UVALDE, TEXAS
From 24-MAY-20 17:30:00 to 24-MAY-20 17:30:00 (CST-6)
Location: REAGAN WELLS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced half dollar size hail at Garner State Park.

Thunderstorm Wind in BEXAR, TEXAS
From 24-MAY-20 19:05:00 to 24-MAY-20 19:05:00 (CST-6)
Location: LEON SPGS
Magnitude: 70.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced wind gusts estimated at 80 mph that uprooted trees in Fair Oaks Ranch. This report was from mPING.

Thunderstorm Wind in MAVERICK, TEXAS
From 24-MAY-20 18:06:00 to 24-MAY-20 18:06:00 (CST-6)
Location: EAGLE PASS MUNI ARPT
Magnitude: 74.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced wind gusts estimated at 85 mph that blew off part of an awning from a building near downtown Eagle Pass.

Thunderstorm Wind in BANDERA, TEXAS
From 24-MAY-20 18:15:00 to 24-MAY-20 18:15:00 (CST-6)
Location: VANDERPOOL
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A thunderstorm produced wind gusts measured at 53 kts. at the Love Creek Preserve between Vanderpool and Medina.

Hail in TRAVIS, TEXAS
From 24-MAY-20 18:21:00 to 24-MAY-20 18:21:00 (CST-6)
Location: AUSTIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in Austin. This report was from mPING.

Hail in TRAVIS, TEXAS
From 24-MAY-20 18:35:00 to 24-MAY-20 18:35:00 (CST-6)
Location: MONTOPOLIS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A thunderstorm produced golf ball size hail near Austin Bergstrom International Airport. There was a picture of the hail on social media.

Flash Flood in TRAVIS, TEXAS
From 24-MAY-20 18:40:00 to 24-MAY-20 23:15:00 (CST-6)
Location: PLEASANT HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced heavy rain that led to flash flooding. Parts of I-35 that were under construction were flooded as were streets in the area. CoCoRaHS observers reported 2.5 to 3 inches of rain.

Hail in TRAVIS, TEXAS
From 24-MAY-20 18:40:00 to 24-MAY-20 18:40:00 (CST-6)
Location: PLEASANT HILL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in South Austin.

Thunderstorm Wind in MEDINA, TEXAS
From 24-MAY-20 18:42:00 to 24-MAY-20 18:42:00 (CST-6)
Location: HONDO ARPT
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A thunderstorm produced wind gusts measured at 61 kts. by the ASOS at the South Texas Regional Airport in Hondo.

Thunderstorm Wind in BEXAR, TEXAS
From 24-MAY-20 19:05:00 to 24-MAY-20 19:05:00 (CST-6)
Location: HELOTES
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A National Weather Service storm damage survey found a wide swath of 60 to 70 mph winds caused extensive tree damage to areas near Cartwright Trail, Talley Rd., and along Culebra Rd. Fences were blown down, sheds overturned, and some roofs were damaged.

Flash Flood in TRAVIS, TEXAS
From 24-MAY-20 19:10:00 to 24-MAY-20 23:15:00 (CST-6)
Location: MANCHACA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms produced heavy rain that led to flash flooding in South Austin. An mPING report stated streets were flooded near Old Manchaca Rd. near a creek called Nichols Branch.

Thunderstorm Wind in BEXAR, TEXAS
From 24-MAY-20 19:19:00 to 24-MAY-20 19:19:00 (CST-6)
Location: GREY FOREST
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS storm survey found thunderstorms produced wind gusts estimated at 70 mph that damaged roofs and fences off Grey Fox in far northwest San Antonio.

Thunderstorm Wind in BEXAR, TEXAS
From 24-MAY-20 19:40:00 to 24-MAY-20 19:40:00 (CST-6)
Location: WETMORE
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced wind gusts estimated at 70 mph that downed tree limbs near the intersection of Evans Rd. and Bulverde Rd. in far north San Antonio.

Thunderstorm Wind in GUADALUPE, TEXAS
From 24-MAY-20 20:45:00 to 24-MAY-20 20:45:00 (CST-6)
Location: SEGUIN
Magnitude: 70.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

A thunderstorm produced wind gusts estimated at 80 mph that snapped a large tree at its base. There was a picture of the tree on social media.

Flash Flood in BEXAR, TEXAS
From 24-MAY-20 21:15:00 to 25-MAY-20 00:15:00 (CST-6)
Location: CASTLE HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding. Bexar County Emergency Management reported multiple high water rescues.

Flash Flood in BEXAR, TEXAS
From 24-MAY-20 22:28:00 to 25-MAY-20 00:15:00 (CST-6)
Location: CEMENTVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms produced heavy rain that led to flash flooding closing streets in the vicinity of Jackson Keller Rd. and San Pedro Ave. in north San Antonio.

Flash Flood in BEXAR, TEXAS
From 24-MAY-20 20:30:00 to 25-MAY-20 00:15:00 (CST-6)
Location: SAT TWIN OAKS ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms produced heavy rain that led to flash flooding. In north San Antonio, southbound Hwy 281 near Brook Hollow Blvd. was closed and a car was stalled in water.