A series of upper level disturbances, an unstable atmosphere and an approaching cold front produced showers and thunderstorms across portions of Deep South Texas throughout the day May 24th. During the early morning hours, a small thunderstorm complex intensified over the western portion of the Lower RGV before accelerating through Weslaco, La Feria, Brownsville, and South Padre Island then raced into the Gulf. Wind gusts to 50 mph or higher along with brief but frequent cloud to ground lightning strikes caused damage around daybreak.  After a hot and sunny day, another round of storms crossed the Lower Valley during the mid evening, producing more hail and severe wind gusts.

Hail in HIDALGO, TEXAS
From 24-MAY-09 20:47:00 to 24-MAY-09 20:47:00 (CST-6)
Location: DONNA
Magnitude: 0.88 
Reported by: Trained Spotter

A trained spotter reported nickel size hail fell in Donna during a thunderstorm that moved through Hidalgo County.

Thunderstorm Wind in CAMERON, TEXAS
From 24-MAY-09 05:00:00 to 24-MAY-09 05:00:00 (CST-6)
Location: PORT ISABEL
Magnitude: 46.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Mariner

Measured winds of 53 mph were recorded at the Isla Grande Resort on the south side of the Town of South Padre Island as a strong thunderstorm swept through.  Awnings blew down nearby at Isla Blanca park, where winds may have been a bit higher in the exposed area.

Hail in HIDALGO, TEXAS
From 24-MAY-09 20:53:00 to 24-MAY-09 20:53:00 (CST-6)
Location: WESLACO
Magnitude: 1.00 
Reported by: Public

Quarter size hail fell along Milagros Road between Donna and Weslaco during a thunderstorm that moved through Hidalgo County.  A news reporter from KRGV-TV-5 reported nickel size hail in the vicinity at around the same time.

Lightning in HIDALGO, TEXAS
From 24-MAY-09 03:45:00 to 24-MAY-09 03:45:00 (CST-6)
Location: WESLACO
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager reported that lightning struck a home in Weslaco during an early morning thunderstorm. A fire engulfed the home which was completed destroyed. There were no injuries reported.

Thunderstorm Wind in CAMERON, TEXAS
From 24-MAY-09 04:10:00 to 24-MAY-09 04:10:00 (CST-6)
Location: PALMETAL
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained spotter reported they had estimated a wind gust up to approximately 60 miles per hour during a thunderstorm approximately 5 miles southwest of the Harlingen Airport.

Hail in HIDALGO, TEXAS
From 24-MAY-09 20:55:00 to 24-MAY-09 20:55:00 (CST-6)
Location: WESLACO
Magnitude: 1.50 
Reported by: Trained Spotter

A trained spotter reported that half-dollar size hail fell in Weslaco during a thunderstorm that moved through Hidalgo County.

Hail in WILLACY, TEXAS
From 24-MAY-09 20:55:00 to 24-MAY-09 21:15:00 (CST-6)
Location: RAYMONDVILLE
Magnitude: 0.75 
Reported by: Fire Department/Rescue

A Raymondville Volunteer Fire Department employee reported penny size hail fell in the city of Raymondville during a thunderstorm that moved through Willacy County. The Willacy County Emergency Manager also reported penny size hail had fallen in the city of Raymondville during this thunderstorm.

Thunderstorm Wind in WILLACY, TEXAS
From 24-MAY-09 21:15:00 to 24-MAY-09 21:15:00 (CST-6)
Location: RAYMONDVILLE
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A microburst from a cluster of thunderstorms moving through Raymondville toward Lyford rolled a new but unsecured mobile home just west of Raymondville. Nearby, several fences were blown down, and the door to an industrial building was blown in.  Farther south, at about the same time, an amateur radio operator reported
estimated wind gusts of 50 mph or higher occurred just north of Lyford.