Scattered thunderstorms developed across North Texas and primarily produced hail that was less than golfball sized in diameter.  There were a couple of reported microbursts as well.  Training thunderstorms led to heavy rainfall and isolated reports of flash flooding during the evening hours.

Hail in MILLS, TEXAS
From 20-MAY-11 12:25:00 to 20-MAY-11 12:25:00 (CST-6)
Location: GOLDTHWAITE
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golfball sized hail fell in Goldthwaite.  The hail broke glass windows at the Mills County Courthouse, damaged skylights at the elementary school, and dented cars.

Hail in COOKE, TEXAS
From 20-MAY-11 13:17:00 to 20-MAY-11 13:17:00 (CST-6)
Location: GAINESVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MILLS, TEXAS
From 20-MAY-11 13:20:00 to 20-MAY-11 13:20:00 (CST-6)
Location: STAR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny sized hail fell in Star, which is approximately 12 miles east of Goldthwaite.

Hail in COLLIN, TEXAS
From 20-MAY-11 13:25:00 to 20-MAY-11 13:25:00 (CST-6)
Location: SHEPTON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter to half-dollar sized hail fell at Frankford Road and Midway Road in Far North Dallas.

Hail in COLLIN, TEXAS
From 20-MAY-11 13:25:00 to 20-MAY-11 13:25:00 (CST-6)
Location: SHEPTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel sized hail fell at Dallas North Tollway and George Bush Turnpike.

Hail in DALLAS, TEXAS
From 20-MAY-11 13:30:00 to 20-MAY-11 13:30:00 (CST-6)
Location: ADDISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail fell in Addison.

Hail in PARKER, TEXAS
From 20-MAY-11 13:31:00 to 20-MAY-11 13:31:00 (CST-6)
Location: WEATHERFORD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HAMILTON, TEXAS
From 20-MAY-11 14:05:00 to 20-MAY-11 14:05:00 (CST-6)
Location: EVANT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in TARRANT, TEXAS
From 20-MAY-11 14:25:00 to 20-MAY-11 14:25:00 (CST-6)
Location: KELLER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Nickel sized hail fell 1 mile northwest of Keller.

Hail in TARRANT, TEXAS
From 20-MAY-11 14:40:00 to 20-MAY-11 14:40:00 (CST-6)
Location: FT WORTH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TARRANT, TEXAS
From 20-MAY-11 14:42:00 to 20-MAY-11 14:42:00 (CST-6)
Location: FT WORTH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TARRANT, TEXAS
From 20-MAY-11 14:52:00 to 20-MAY-11 14:52:00 (CST-6)
Location: HURST
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in ROCKWALL, TEXAS
From 20-MAY-11 15:08:00 to 20-MAY-11 15:08:00 (CST-6)
Location: ROCKWALL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DALLAS, TEXAS
From 20-MAY-11 15:13:00 to 20-MAY-11 15:13:00 (CST-6)
Location: COPPELL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COLLIN, TEXAS
From 20-MAY-11 15:58:00 to 20-MAY-11 15:58:00 (CST-6)
Location: LUCAS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Ping-pong ball sized hail fell in Lucas, which is approximately 6 miles northeast of Plano.

Hail in MCLENNAN, TEXAS
From 20-MAY-11 16:45:00 to 20-MAY-11 16:45:00 (CST-6)
Location: WACO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HUNT, TEXAS
From 20-MAY-11 16:50:00 to 20-MAY-11 16:50:00 (CST-6)
Location: COMMERCE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in BELL, TEXAS
From 20-MAY-11 16:57:00 to 20-MAY-11 16:57:00 (CST-6)
Location: BLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny sized hail fell 6 miles northwest of Morgan's Point Resort.

Hail in LEON, TEXAS
From 20-MAY-11 17:05:00 to 20-MAY-11 17:05:00 (CST-6)
Location: LEONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in NAVARRO, TEXAS
From 20-MAY-11 17:30:00 to 20-MAY-11 17:30:00 (CST-6)
Location: BLOOMING GROVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny sized hail fell just west of Blooming Grove, or approximately 14 miles west of Corsicana.

Hail in LEON, TEXAS
From 20-MAY-11 19:40:00 to 20-MAY-11 19:40:00 (CST-6)
Location: JEWETT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail fell on Highway 79, approximately halfway between Jewett and Buffalo.

Hail in CORYELL, TEXAS
From 20-MAY-11 15:59:00 to 20-MAY-11 15:59:00 (CST-6)
Location: COPPERAS COVE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to half dollar sized hail was reported in Copperas Cove.

Thunderstorm Wind in COOKE, TEXAS
From 20-MAY-11 13:18:00 to 20-MAY-11 13:18:00 (CST-6)
Location: GAINESVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county Emergency Manager estimated a 60 mph thunderstorm wind gust in Gainesville.

Hail in COLLIN, TEXAS
From 20-MAY-11 14:19:00 to 20-MAY-11 14:19:00 (CST-6)
Location: PLANO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in DENTON, TEXAS
From 20-MAY-11 15:04:00 to 20-MAY-11 15:04:00 (CST-6)
Location: GRAPEVINE RES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a report of a 60 MPH thunderstorm wind gust in Flower Mound.

Flood in FANNIN, TEXAS
From 20-MAY-11 16:21:00 to 20-MAY-11 16:21:00 (CST-6)
Location: BONHAM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Street flooding was reported on Highway 56 just southwest of Bonham.

Thunderstorm Wind in VAN ZANDT, TEXAS
From 20-MAY-11 16:30:00 to 20-MAY-11 16:30:00 (CST-6)
Location: WILLS PT
Magnitude: 59.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof was blown off the Old Rose Dry Goods building near the intersection of James and 4th streets. Five apartments were damaged. Power lines were also blown down in the area.

Flash Flood in FANNIN, TEXAS
From 20-MAY-11 18:02:00 to 20-MAY-11 19:10:00 (CST-6)
Location: TELEPHONE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There were several reports of flash flooding extending from the Telephone area southwest to Ivanhoe, and then south to Lake Bonham.

Thunderstorm Wind in NAVARRO, TEXAS
From 20-MAY-11 17:45:00 to 20-MAY-11 17:45:00 (CST-6)
Location: RICE
Magnitude: 61.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew the roof off one home and damaged 2 other structures near the intersection of County Roads 1040 and 1060. Numerous trees were also blown down in the area. This location is approximately one and a half miles northeast of Rice.

Flash Flood in LEON, TEXAS
From 20-MAY-11 18:28:00 to 20-MAY-11 21:28:00 (CST-6)
Location: BUFFALO
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding was reported within the town of Buffalo and along Highway 75 south of town. Several County Roads also experienced flooding near Highway 75. FM 2539 south of Buffalo had to be closed for a few weeks because a culvert was washed out.

Flash Flood in ANDERSON, TEXAS
From 20-MAY-11 19:45:00 to 20-MAY-11 20:45:00 (CST-6)
Location: TUCKER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A segment of Highway 294 was barricaded due to high water flowing over the road.  This segment was located near Tucker or approximately 8 miles south-southwest of Palestine.

Hail in HAMILTON, TEXAS
From 20-MAY-11 13:20:00 to 20-MAY-11 13:25:00 (CST-6)
Location: SHIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement