A strong upper level disturbance interacted with an increasingly unstable airmass to produce supercell thunderstorms.  These supercell thunderstorms resulted in many reports of large hail and damaging winds on April 11.
A couple of long track supercells spawned at least two tornadoes shortly after midnight on Easter Sunday April 12.  One twister tracked near Melvin and stayed over ranch land, while another tornado tracked south of Ozona and also remained mostly over ranch land.  At the beginning of it's life cycle, the tornado in Crockett County struck a residence and resulted in EF-0 damage.

Hail in HASKELL, TEXAS
From 11-APR-20 14:45:00 to 11-APR-20 14:47:00 (CST-6)
Location: RULE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HASKELL, TEXAS
From 11-APR-20 14:55:00 to 11-APR-20 14:57:00 (CST-6)
Location: RULE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in THROCKMORTON, TEXAS
From 11-APR-20 09:20:00 to 11-APR-20 09:21:00 (CST-6)
Location: LUSK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The Woodson Volunteer Fire Department estimated a wind gust of 60 mph along with nickel size hail.

Hail in TOM GREEN, TEXAS
From 11-APR-20 16:55:00 to 11-APR-20 16:57:00 (CST-6)
Location: GOODFELLOW AFB
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JONES, TEXAS
From 11-APR-20 17:07:00 to 11-APR-20 17:09:00 (CST-6)
Location: ANSON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHACKELFORD, TEXAS
From 11-APR-20 18:42:00 to 11-APR-20 18:44:00 (CST-6)
Location: IBEX
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail covering the roadway.

Hail in SHACKELFORD, TEXAS
From 11-APR-20 18:43:00 to 11-APR-20 18:45:00 (CST-6)
Location: ALBANY
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TOM GREEN, TEXAS
From 11-APR-20 16:57:00 to 11-APR-20 16:58:00 (CST-6)
Location: SAN ANGELO
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported electric poles down in the Bluffs Neighborhood of San Angelo.

Thunderstorm Wind in TOM GREEN, TEXAS
From 11-APR-20 16:45:00 to 11-APR-20 16:46:00 (CST-6)
Location: SAN ANGELO RES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off duty NWS employee estimated a 60 mph wind gust and pea size hail.

Hail in SCHLEICHER, TEXAS
From 12-APR-20 01:18:00 to 12-APR-20 01:20:00 (CST-6)
Location: EL DORADO MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported nickel to quarter size hail.

Thunderstorm Wind in TOM GREEN, TEXAS
From 11-APR-20 16:50:00 to 11-APR-20 16:51:00 (CST-6)
Location: SAN ANGELO
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported damage to the roof of a church at 2605 Johnson Street in San Angelo.  The roof was peeled off from the building and large tree limbs were also down in the area.

Thunderstorm Wind in TOM GREEN, TEXAS
From 11-APR-20 18:25:00 to 11-APR-20 18:26:00 (CST-6)
Location: (SJT)MATHIS FLD SAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A 60 mph wind gust was estimated at the NWS office at Mathis Field.

Hail in TOM GREEN, TEXAS
From 12-APR-20 02:40:00 to 12-APR-20 02:41:00 (CST-6)
Location: SAN ANGELO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public estimated nickel to quarter size hail.

Thunderstorm Wind in TOM GREEN, TEXAS
From 12-APR-20 02:45:00 to 12-APR-20 02:46:00 (CST-6)
Location: HARRIET
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public estimated 50 to 60 mph winds.

Thunderstorm Wind in IRION, TEXAS
From 12-APR-20 02:10:00 to 12-APR-20 02:11:00 (CST-6)
Location: SHERWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP Observer estimated a wind gust to 60 mph, 7 miles northwest of Tankersley.

Thunderstorm Wind in MASON, TEXAS
From 12-APR-20 02:30:00 to 12-APR-20 02:34:00 (CST-6)
Location: HEDWIGS HILL
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An area of damaging thunderstorm winds about 1.5 miles wide uprooted several trees and broke many large tree limbs. The high winds also knocked over a windmill and took roofs of some hunting cabins. Special thanks to Mason County Emergency Management and a rancher who provided details of this wind damage.

Tornado in MCCULLOCH, TEXAS
From 12-APR-20 03:05:00 to 12-APR-20 03:13:00 (CST-6)
Location: MELVIN
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 Tornado touched down near Highway 87 about a mile north of Melvin and continued northeast. It mostly uprooted large Oak Trees or snapped their trunks. It killed a calf and destroyed several
deer feeders. The tornado overturned a truck and cattle feeder.  It damaged the large doors on a barn.  In addition, it knocked over a fence.  Special thanks to ranchers who assisted with this damage survey.

Tornado in CROCKETT, TEXAS
From 12-APR-20 00:03:00 to 12-APR-20 00:16:00 (CST-6)
Location: OZONA
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 Tornado snapped large tree trunks and uprooted numerous trees across ranch country located south of Ozona. The tornado broke a cross member of a large utility pole and knocked down electrical lines. The tornado destroyed a deer blind and some fencing. The tornado damaged the awning of a mobile home and flipped the outdoor A/C unit. Special thanks to the all of the ranchers and Crockett County Fire Department for their assistance with this survey.

Hail in THROCKMORTON, TEXAS
From 11-APR-20 09:20:00 to 11-APR-20 09:21:00 (CST-6)
Location: LUSK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The Woodson Volunteer Fire Department estimated a wind gust of 60 mph along with nickel size hail.