Thunderstorms developed along a cold front in northern Mexico and moved into South Central Texas. Some of these storms grew to be supercells and produced giant hail, damaging wind gusts, and one tornado.  Some areas along Highway 90 had multiple rounds of supercells.  Two supercells combined near D'Hanis and Hondo, producing gargantuan hail in excess of 6 inches in diameter.  One of the hailstones that fell in Hondo was officially measured at 6.416 inches in diameter and weighed 1.26 pounds.  These were deemed new Texas state hail records.  There is no official monetary loss due to damage as private insurance companies do not release data to the NWS, but knowing the size of hail and the area affected, it is estimated that millions of dollars of damage occurred.

Hail in VAL VERDE, TEXAS
From 28-APR-21 15:41:00 to 28-APR-21 15:41:00 (CST-6)
Location: DEL RIO
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail near the Del Rio International Airport.

Hail in VAL VERDE, TEXAS
From 28-APR-21 15:45:00 to 28-APR-21 15:45:00 (CST-6)
Location: DEL RIO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced golf ball size hail on Hwy 90 east of Del Rio.

Thunderstorm Wind in BEXAR, TEXAS
From 28-APR-21 20:35:00 to 28-APR-21 20:38:00 (CST-6)
Location: LUXELLO
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey Team determined thunderstorm winds estimated at 80 mph caused damage to an area one mile wide and four miles long in northeastern San Antonio and adjacent parts of Bexar County outside the city limit to Bracken in Comal County. The damage was to trees, fences, and power lines.

Tornado in MEDINA, TEXAS
From 28-APR-21 18:33:00 to 28-APR-21 18:41:00 (CST-6)
Location: ELLSTONE
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Within a larger more sporadic wind damage path, a National Weather Service Storm Survey Team found a distinct path of concentrated damage along Elstone Road/CR 446  that they rated an EF-1 tornado. Based on radar and time estimates from locals the tornado began west of Hwy 173 where it peel back the roof of a barn before causing significant damage to a manufactured home and rolled an RV. The tornado crossed Hwy 173 and proceeded east along CR 548 snapping tree trunks along the road before reaching another cluster of manufactured homes. One home was pushed off of its foundation. Another single family home suffered extensive roof damage. The
homeowner provided details of the event and showed additional damage to the property, including a shed anchored with cement footings being demolished and a weighted deer blind being blown over. Damage decreased to the east of these homes with a center pivot irrigation system damaged and more tree damage. The endpoint for the tornado was estimated as Hondo Creek prevented further survey eastward.  Maximum winds are estimated to have been 110 mph with an estimated tornado path width of 600 yards.

Hail in VAL VERDE, TEXAS
From 28-APR-21 15:47:00 to 28-APR-21 15:47:00 (CST-6)
Location: (DLF)LAUGHLIN AFB DE
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced three inch diameter hail near the intersection of Hwy 277 and Spur 317 southeast of Del Rio.

Hail in VAL VERDE, TEXAS
From 28-APR-21 15:50:00 to 28-APR-21 15:50:00 (CST-6)
Location: DEL RIO
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced two inch diameter hail in Del Rio.

Hail in VAL VERDE, TEXAS
From 28-APR-21 15:55:00 to 28-APR-21 15:55:00 (CST-6)
Location: (DLF)LAUGHLIN AFB DE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A thunderstorm produced two inch diameter hail at Laughlin AFB. The base weather observer reported the hail.

Hail in MEDINA, TEXAS
From 28-APR-21 18:35:00 to 28-APR-21 18:35:00 (CST-6)
Location: HONDO
Magnitude: 6.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media post shows a gargantuan hailstone likely 6+ inches in diameter.  The hailstone was not saved and and therefore an official measurement could not be taken.

Hail in MEDINA, TEXAS
From 28-APR-21 18:35:00 to 28-APR-21 18:35:00 (CST-6)
Location: HONDO
Magnitude: 6.42 
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS storm survey team and employees from the Insurance Institute for Business and Home Safety (IBHS) conducted official measurements of a gargantuan hailstone.  The stone fell at a residence in Hondo Texas during a supercell thunderstorm during the evening of April 28, 2021.  With 3D scanning equipment, the IBHS was able to determine the maximum hail diameter at 6.416 inches, circumference at 19.73 inches,  and volume of 40.239 cubic inches. The hailstone weight was 1.26 pounds. As of this writing, these measurements are being recognized as Texas state hail records.  A full report on this hail event and this particular hailstone can be found at  https://www.ncdc.noaa.gov/monitoring-content/extremes/scec/reports/20210624-Texas-Hailstone.pdf  .

Hail in KINNEY, TEXAS
From 28-APR-21 16:22:00 to 28-APR-21 16:22:00 (CST-6)
Location: BRACKETTVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A thunderstorm produced half dollar size hail in Brackettville.

Hail in KINNEY, TEXAS
From 28-APR-21 16:35:00 to 28-APR-21 16:35:00 (CST-6)
Location: BRACKETTVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter to half dollar sized hail in Brackettville.

Hail in KINNEY, TEXAS
From 28-APR-21 17:04:00 to 28-APR-21 17:04:00 (CST-6)
Location: BRACKETTVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in Brackettville.

Hail in MEDINA, TEXAS
From 28-APR-21 18:30:00 to 28-APR-21 18:30:00 (CST-6)
Location: (HDO)HONDO MUNI ARPT
Magnitude: 4.00 
Property damage: 1.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS damage survey showed extensive damage to cars, RVs, and structures in D'Hanis from very large hail and windblown hail.  RVs had holes in their roofs, cars and trucks had windows busted out, and siding had holes in them.  Building facades had extensive damage as well.  Monetary loss numbers are not readily available but based on the amount of RV, automobile, and building damage, it can be estimated that damage in the D'Hanis area is likely more than 1 million dollars.

Hail in KINNEY, TEXAS
From 28-APR-21 17:05:00 to 28-APR-21 17:05:00 (CST-6)
Location: BRACKETTVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail in Brackettville.

Hail in KINNEY, TEXAS
From 28-APR-21 17:05:00 to 28-APR-21 17:05:00 (CST-6)
Location: BRACKETTVILLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced two inch diameter hail on the west side of Brackettville.

Hail in UVALDE, TEXAS
From 28-APR-21 17:07:00 to 28-APR-21 17:07:00 (CST-6)
Location: LAGUNA
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced baseball size hail on Hwy 55 northwest of Uvalde.

Hail in MEDINA, TEXAS
From 28-APR-21 18:35:00 to 28-APR-21 18:45:00 (CST-6)
Location: HONDO
Magnitude: 5.00 
Crop damage: 0.00K
Reported by: Broadcast Media

Pictures shared on social media show several large hailstones over 5 inches in diameter.  Significant hail damage occurred in and around Hondo with property damage to roofs, cars, windows, and some buildings.

Hail in UVALDE, TEXAS
From 28-APR-21 17:19:00 to 28-APR-21 17:19:00 (CST-6)
Location: NORTH UVALDE
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced baseball size hail northwest of Uvalde.

Hail in UVALDE, TEXAS
From 28-APR-21 17:50:00 to 28-APR-21 17:50:00 (CST-6)
Location: CONCAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced golf ball size hail in Concan.

Hail in UVALDE, TEXAS
From 28-APR-21 18:12:00 to 28-APR-21 18:12:00 (CST-6)
Location: SABINAL
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A thunderstorm produced tennis ball size hail in Sabinal.

Hail in MEDINA, TEXAS
From 28-APR-21 18:30:00 to 28-APR-21 18:30:00 (CST-6)
Location: (HDO)HONDO MUNI ARPT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced tennis ball size hail northeast of D'Hanis.

Hail in MEDINA, TEXAS
From 28-APR-21 19:00:00 to 28-APR-21 19:00:00 (CST-6)
Location: DUNLAY
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced tennis ball size hail in Dunlay.

Hail in MEDINA, TEXAS
From 28-APR-21 19:10:00 to 28-APR-21 19:10:00 (CST-6)
Location: CASTROVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced golf ball size hail northwest of Castroville.

Thunderstorm Wind in MEDINA, TEXAS
From 28-APR-21 19:10:00 to 28-APR-21 19:10:00 (CST-6)
Location: CASTROVILLE MUNI ARP
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A thunderstorm produced a measured wind gust of 53 kts at the Castroville Municipal Airport.

Thunderstorm Wind in MEDINA, TEXAS
From 28-APR-21 19:16:00 to 28-APR-21 19:16:00 (CST-6)
Location: CASTROVILLE
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A thunderstorm produced wind gusts estimated at 70 mph that flipped a Recreation Vehicle, uprooted several trees, blew down fences, and twisted irrigation pipes around Castroville.

Hail in BEXAR, TEXAS
From 28-APR-21 19:17:00 to 28-APR-21 19:17:00 (CST-6)
Location: ALAMO DOWNS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail near Sea World in San Antonio.

Hail in BEXAR, TEXAS
From 28-APR-21 19:22:00 to 28-APR-21 19:22:00 (CST-6)
Location: (SKF)KELLY AFB SAN A
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail near I-410 and Hwy 151 on the west side of San Antonio.

Hail in BEXAR, TEXAS
From 28-APR-21 19:23:00 to 28-APR-21 19:23:00 (CST-6)
Location: (SKF)KELLY AFB SAN A
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail near Lackland AFB in San Antonio.

Hail in BEXAR, TEXAS
From 28-APR-21 19:27:00 to 28-APR-21 19:27:00 (CST-6)
Location: ALAMO DOWNS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail in far western San Antonio.

Hail in BEXAR, TEXAS
From 28-APR-21 19:35:00 to 28-APR-21 19:35:00 (CST-6)
Location: LACKLAND AFB
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A thunderstorm produced quarter size hail at Lackland AFB in San Antonio.

Hail in BEXAR, TEXAS
From 28-APR-21 19:40:00 to 28-APR-21 19:40:00 (CST-6)
Location: LEON VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced golf ball size hail near Sea World in San Antonio.

Hail in UVALDE, TEXAS
From 28-APR-21 19:50:00 to 28-APR-21 19:50:00 (CST-6)
Location: UVALDE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A thunderstorm produced golf ball size hail in Uvalde.

Hail in BEXAR, TEXAS
From 28-APR-21 19:55:00 to 28-APR-21 19:55:00 (CST-6)
Location: HELOTES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail along Loop 1604 in northwestern San Antonio.

Flash Flood in BEXAR, TEXAS
From 28-APR-21 20:25:00 to 28-APR-21 23:15:00 (CST-6)
Location: LEON VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms produced heavy rain that led to flash flooding. Water covered the road at I-410 and Bandera Rd. in northwestern San Antonio.

Hail in COMAL, TEXAS
From 28-APR-21 20:55:00 to 28-APR-21 20:55:00 (CST-6)
Location: NEW BRAUNFELS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A thunderstorm produced quarter size hail in northwestern New Braunfels.

Hail in COMAL, TEXAS
From 28-APR-21 21:00:00 to 28-APR-21 21:00:00 (CST-6)
Location: SATTLER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A thunderstorm produced golf ball size hail north of New Braunfels.

Hail in COMAL, TEXAS
From 28-APR-21 21:05:00 to 28-APR-21 21:05:00 (CST-6)
Location: VALLEY VIEW
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A thunderstorm produced half dollar size hail on the northwest side of New Braunfels.

Hail in COMAL, TEXAS
From 28-APR-21 21:06:00 to 28-APR-21 21:06:00 (CST-6)
Location: HUNTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced quarter size hail near Hunter.

Hail in COMAL, TEXAS
From 28-APR-21 21:10:00 to 28-APR-21 21:10:00 (CST-6)
Location: HUNTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A thunderstorm produced quarter size hail near Hunter.

Hail in HAYS, TEXAS
From 28-APR-21 21:15:00 to 28-APR-21 21:15:00 (CST-6)
Location: SAN MARCOS LOWMAN AR
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced two inch diameter hail in San Marcos.

Hail in HAYS, TEXAS
From 28-APR-21 21:17:00 to 28-APR-21 21:17:00 (CST-6)
Location: SAN MARCOS LOWMAN AR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced golf ball size hail in San Marcos.

Hail in HAYS, TEXAS
From 28-APR-21 21:30:00 to 28-APR-21 21:30:00 (CST-6)
Location: KYLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced quarter size hail between San Marcos and Kyle.

Hail in REAL, TEXAS
From 28-APR-21 21:35:00 to 28-APR-21 21:35:00 (CST-6)
Location: PRADE RANCH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A thunderstorm produced ping pong ball size hail near Prade Ranch.

Hail in REAL, TEXAS
From 28-APR-21 21:40:00 to 28-APR-21 21:40:00 (CST-6)
Location: LEAKEY LEWIS ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail north of Leakey.

Hail in BANDERA, TEXAS
From 28-APR-21 23:09:00 to 28-APR-21 23:09:00 (CST-6)
Location: MEDINA CIRCLE R ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KERR, TEXAS
From 28-APR-21 23:20:00 to 28-APR-21 23:20:00 (CST-6)
Location: KERRVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced ping pong ball size hail in Kerrville.

Hail in UVALDE, TEXAS
From 28-APR-21 23:23:00 to 28-APR-21 23:23:00 (CST-6)
Location: UTOPIA
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A thunderstorm produced tennis ball size hail in Utopia.

Thunderstorm Wind in BEXAR, TEXAS
From 28-APR-21 20:30:00 to 28-APR-21 20:30:00 (CST-6)
Location: LUXELLO
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A thunderstorm produced wind gusts estimated at 70 mph that knocked down trees in northeastern San Antonio.

Thunderstorm Wind in BEXAR, TEXAS
From 28-APR-21 20:30:00 to 28-APR-21 20:30:00 (CST-6)
Location: WETMORE
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced wind gusts estimated at 70 mph that knocked down trees near  the intersection of Stahl Rd. and Judson Rd. in northeastern San Antonio.

Thunderstorm Wind in BEXAR, TEXAS
From 28-APR-21 20:30:00 to 28-APR-21 20:35:00 (CST-6)
Location: LUXELLO
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey Team determined thunderstorm winds estimated at 80 mph caused damage to an area one mile wide and four miles long in northeastern San Antonio and adjacent parts of Bexar County outside the city limit to near the Comal County line. The damage was to trees, fences, and power lines.

Thunderstorm Wind in MEDINA, TEXAS
From 28-APR-21 18:27:00 to 28-APR-21 18:32:00 (CST-6)
Location: (HDO)HONDO MUNI ARPT
Magnitude: 96.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey Team determined that the majority of wind damage in and around Hondo was caused by straight line thunderstorm winds estimated at 75 to 110 mph. Two metal buildings had their large doors blown in or out and parts of the metal roofing was blown off a building near the South Texas Regional Airport at Hondo. There was widespread tree damage and multiple center pivot irrigation systems toppled by the severe wind.

Thunderstorm Wind in MEDINA, TEXAS
From 28-APR-21 18:50:00 to 28-APR-21 18:50:00 (CST-6)
Location: DUNLAY
Magnitude: 91.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey Team determined that damage done east of the EF-1 tornado south of Dunlay was caused by straight line thunderstorm winds estimated at 80 to 105 mph. Two separate sections of power lines were knocked down, the roofs of two houses were damaged, several center pivot irrigation systems were damaged, and large tree limbs were knocked down.