A shortwave trough moved east over the Southern Plains during the early afternoon hours.  This aided in the development of supercell thunderstorms along a weak cold front oriented along the Interstate 35 corridor in North Texas.  These storms produced a large swath of golfball sized hail over the Dallas/Fort Worth Metroplex and areas to the northeast to the Paris area.  A few of these storms produced baseball sized hail primarily just south of the Metroplex and around Paris.

Hail in DALLAS, TEXAS
From 19-APR-11 16:50:00 to 19-APR-11 16:50:00 (CST-6)
Location: RICHARDSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny to nickel sized hail fell at UT Dallas in Richardson.

Hail in TARRANT, TEXAS
From 19-APR-11 16:56:00 to 19-APR-11 16:56:00 (CST-6)
Location: MARA
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in south Fort Worth.

Hail in TARRANT, TEXAS
From 19-APR-11 17:19:00 to 19-APR-11 17:19:00 (CST-6)
Location: CROWLEY
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LAMAR, TEXAS
From 19-APR-11 17:24:00 to 19-APR-11 17:24:00 (CST-6)
Location: POWDERLY
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in Powderly which is approximately 9 miles north of Paris.

Hail in LAMAR, TEXAS
From 19-APR-11 17:28:00 to 19-APR-11 17:28:00 (CST-6)
Location: HINCKLEY
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell 2 miles north of Hinkley which is approximately 5 miles north of Paris.

Hail in LAMAR, TEXAS
From 19-APR-11 17:18:00 to 19-APR-11 17:18:00 (CST-6)
Location: HINCKLEY
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell north of Paris at the intersection of Highway 271 and FM 1499.

Hail in JOHNSON, TEXAS
From 19-APR-11 18:06:00 to 19-APR-11 18:20:00 (CST-6)
Location: CLEBURNE
Magnitude: 2.75 
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball to baseball sized hail was reported in Cleburne for nearly 15 minutes by several sources including spotters, broadcast media, and a local COOP Observer.

Hail in HILL, TEXAS
From 19-APR-11 19:43:00 to 19-APR-11 19:43:00 (CST-6)
Location: ITASCA
Magnitude: 3.50 
Property damage: 35.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP Observer in Itasca reported hail stones up to 3.5 inches in diameter.

Hail in DENTON, TEXAS
From 19-APR-11 15:47:00 to 19-APR-11 15:47:00 (CST-6)
Location: LAKE DALLAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Quarter size hail fell near Highland Village.

Hail in DENTON, TEXAS
From 19-APR-11 15:55:00 to 19-APR-11 16:01:00 (CST-6)
Location: CARNEY
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Quarter to golfball sized hail fell for 6 minutes in The Colony.

Hail in LAMAR, TEXAS
From 19-APR-11 17:56:00 to 19-APR-11 17:56:00 (CST-6)
Location: PARIS
Magnitude: 2.75 
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LAMAR, TEXAS
From 19-APR-11 18:01:00 to 19-APR-11 18:01:00 (CST-6)
Location: POWDERLY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball sized hail fell in Powderly which is approximately 9 miles north of Paris.

Hail in JOHNSON, TEXAS
From 19-APR-11 17:22:00 to 19-APR-11 17:22:00 (CST-6)
Location: GODLEY
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HILL, TEXAS
From 19-APR-11 19:44:00 to 19-APR-11 19:44:00 (CST-6)
Location: SINGISER
Magnitude: 3.00 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser observed tea cup sized hail, which is about the size of an orange, approximately 5 miles north-northwest of Hillsboro.

Hail in HILL, TEXAS
From 19-APR-11 19:51:00 to 19-APR-11 19:51:00 (CST-6)
Location: MIDWAY
Magnitude: 1.75 
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell 1 mile north of Carl's Corner, which is approximately 8 miles northeast of Hillsboro.

Hail in DELTA, TEXAS
From 19-APR-11 22:08:00 to 19-APR-11 22:08:00 (CST-6)
Location: KLONDIKE
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter to golfball sized hail fell in Klondike, which is approximately 4 miles southwest of Cooper.

Hail in GRAYSON, TEXAS
From 19-APR-11 15:45:00 to 19-APR-11 15:45:00 (CST-6)
Location: WHITEROCK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nickel sized hail was reported in Bells which is approximately 7 miles east of Sherman.

Hail in DENTON, TEXAS
From 19-APR-11 16:12:00 to 19-APR-11 16:12:00 (CST-6)
Location: CARNEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail was reported in The Colony.

Hail in FANNIN, TEXAS
From 19-APR-11 16:06:00 to 19-APR-11 16:06:00 (CST-6)
Location: MULBERRY
Magnitude: 2.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hen egg sized hail fell in Mulberry which is approximately 5 miles north northeast of Savoy.

Hail in JOHNSON, TEXAS
From 19-APR-11 17:43:00 to 19-APR-11 17:43:00 (CST-6)
Location: JOSHUA
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in JOHNSON, TEXAS
From 19-APR-11 17:23:00 to 19-APR-11 17:23:00 (CST-6)
Location: BURLESON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in KAUFMAN, TEXAS
From 19-APR-11 18:20:00 to 19-APR-11 18:20:00 (CST-6)
Location: FORNEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in TARRANT, TEXAS
From 19-APR-11 17:30:00 to 19-APR-11 17:30:00 (CST-6)
Location: CROWLEY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JOHNSON, TEXAS
From 19-APR-11 18:28:00 to 19-APR-11 18:28:00 (CST-6)
Location: PARKER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar sized hail fell approximately 6 miles southeast of Cleburne.

Hail in JOHNSON, TEXAS
From 19-APR-11 18:40:00 to 19-APR-11 18:40:00 (CST-6)
Location: RIO VISTA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in KAUFMAN, TEXAS
From 19-APR-11 18:35:00 to 19-APR-11 18:35:00 (CST-6)
Location: TERRELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HILL, TEXAS
From 19-APR-11 19:07:00 to 19-APR-11 19:07:00 (CST-6)
Location: ITASCA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HILL, TEXAS
From 19-APR-11 19:39:00 to 19-APR-11 19:39:00 (CST-6)
Location: ITASCA
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HILL, TEXAS
From 19-APR-11 19:41:00 to 19-APR-11 19:41:00 (CST-6)
Location: ITASCA
Magnitude: 2.50 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser observed tennis ball sized hail just west of  Itasca.

Hail in LAMAR, TEXAS
From 19-APR-11 18:00:00 to 19-APR-11 18:00:00 (CST-6)
Location: BLOSSOM
Magnitude: 2.75 
Property damage: 17.00K
Crop damage: 0.00K
Reported by: Newspaper

Hail in DENTON, TEXAS
From 19-APR-11 15:01:00 to 19-APR-11 15:01:00 (CST-6)
Location: DENTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DENTON, TEXAS
From 19-APR-11 15:01:00 to 19-APR-11 15:01:00 (CST-6)
Location: DENTON
Magnitude: 1.75 
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in DENTON, TEXAS
From 19-APR-11 15:00:00 to 19-APR-11 15:00:00 (CST-6)
Location: KRUM
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Golfball sized hail fell in Krum which is approximately four and a half miles northwest of Denton.

Hail in GRAYSON, TEXAS
From 19-APR-11 15:10:00 to 19-APR-11 15:10:00 (CST-6)
Location: (F39)SHERMAN-DENISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DENTON, TEXAS
From 19-APR-11 15:37:00 to 19-APR-11 15:37:00 (CST-6)
Location: LAKE DALLAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell in Highland Village.

Hail in DENTON, TEXAS
From 19-APR-11 15:30:00 to 19-APR-11 15:30:00 (CST-6)
Location: LEWISVILLE
Magnitude: 1.25 
Property damage: 7.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Half dollar sized hail was reported northeast of Flower Mound.

Hail in LAMAR, TEXAS
From 19-APR-11 18:01:00 to 19-APR-11 18:01:00 (CST-6)
Location: PARIS
Magnitude: 2.50 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tennis ball sized hail fell on Highway 271 north of Paris.

Hail in TARRANT, TEXAS
From 19-APR-11 16:14:00 to 19-APR-11 16:14:00 (CST-6)
Location: GRAPEVINE
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Quarter to golfball sized hail fell in Grapevine.

Hail in FANNIN, TEXAS
From 19-APR-11 16:45:00 to 19-APR-11 16:45:00 (CST-6)
Location: SASH
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: COOP Observer

Golfball sized hail damaged cars to the east of Monkstown.  This location is approximately 10 miles north-northeast of Honey Grove.

Hail in LAMAR, TEXAS
From 19-APR-11 16:54:00 to 19-APR-11 16:54:00 (CST-6)
Location: TIGERTOWN
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in Tigertown which is approximately 12 miles west-northwest of Paris.

Hail in TARRANT, TEXAS
From 19-APR-11 16:15:00 to 19-APR-11 16:15:00 (CST-6)
Location: NORTH RICHLAND HILLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TARRANT, TEXAS
From 19-APR-11 16:21:00 to 19-APR-11 16:21:00 (CST-6)
Location: KELLER
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in LAMAR, TEXAS
From 19-APR-11 17:04:00 to 19-APR-11 17:04:00 (CST-6)
Location: CHICOTA
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in Chicota which is approximately 13 miles north-northwest of Paris.

Hail in LAMAR, TEXAS
From 19-APR-11 17:11:00 to 19-APR-11 17:11:00 (CST-6)
Location: PARIS
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COLLIN, TEXAS
From 19-APR-11 16:25:00 to 19-APR-11 16:25:00 (CST-6)
Location: PLANO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TARRANT, TEXAS
From 19-APR-11 16:33:00 to 19-APR-11 16:33:00 (CST-6)
Location: BEDFORD
Magnitude: 2.00 
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TARRANT, TEXAS
From 19-APR-11 16:36:00 to 19-APR-11 16:36:00 (CST-6)
Location: SEMINARY HILL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Quarter sized hail fell in southwest Fort Worth.

Hail in TARRANT, TEXAS
From 19-APR-11 16:42:00 to 19-APR-11 16:42:00 (CST-6)
Location: SEMINARY HILL
Magnitude: 1.75 
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in southwest Fort Worth at the intersection of Interstate 20 and Bryant Irvin.

Hail in FANNIN, TEXAS
From 19-APR-11 16:40:00 to 19-APR-11 16:40:00 (CST-6)
Location: SASH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Nickel sized hail fell at Monkstown which is approximately 10 miles north of Honey Grove.

Hail in DENTON, TEXAS
From 19-APR-11 15:40:00 to 19-APR-11 15:40:00 (CST-6)
Location: LEWISVILLE
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in GRAYSON, TEXAS
From 19-APR-11 15:12:00 to 19-APR-11 15:12:00 (CST-6)
Location: SHERMAN
Magnitude: 1.75 
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported golfball sized hail 7 miles south-southwest of Sherman and estimated 50 mph winds at the same time.

Hail in JOHNSON, TEXAS
From 19-APR-11 18:30:00 to 19-APR-11 18:30:00 (CST-6)
Location: PARKER
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golfball sized hail fell in Parker, which is approximately 5 miles east of Rio Vista.

Hail in FANNIN, TEXAS
From 19-APR-11 16:21:00 to 19-APR-11 16:21:00 (CST-6)
Location: IVANHOE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Penny sized hail fell in Ivanhoe which is approximately 8 miles north of Bonham.