A QLCS rolled across all of Deep South Texas and the Rio Grande Valley during the overnight hours of May 23rd/24th. The line tore through southern Zapata County between 9 and 10 pm on the 23rd, with wind speeds of 60 to  70 mph or more possible. The line quickly lost its punch tracking across Starr and Jim Hogg counties.  However, rain added up to an inch or so for many areas, and totaled more than two inches in areas of north of Edinburg, still dealing with drainage issues from events two weeks prior. Between 2 and 3 am, the line entered Cameron County and became reinvigorated by low level convergence from east southeast winds from the Gulf of Mexico. At the same time, the line slowed dramatically, with a few stronger cells tracking over the same areas for a two to three hour period. Three to four inches of rain fell across most of Brownsville, with pockets of 5 to 6 inches over the west side, including River Bend Golf Resort, which saw widespread road, drainage, and Resaca flooding. An estimated four to five inches fell east of Brownsville. High water continued through mid to late morning in many areas of southern Cameron County as rains slowly diminished.

Flash Flood in ZAPATA, TEXAS
From 23-MAY-15 22:30:00 to 24-MAY-15 01:00:00 (CST-6)
Location: ZAPATA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Zapata County Sheriffs Office reported knee high water over the roads in the Medina addition and between Miraflores and Highway 83 in Zapata due to swollen arroyos.

Thunderstorm Wind in WILLACY, TEXAS
From 24-MAY-15 00:40:00 to 24-MAY-15 00:40:00 (CST-6)
Location: RAYMONDVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Willacy County Sheriffs Office reported estimated wind gusts of 60 mph at their location.

Flash Flood in CAMERON, TEXAS
From 24-MAY-15 02:00:00 to 24-MAY-15 04:00:00 (CST-6)
Location: VILLA NUEVA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Pockets of 5 to 6 inches of rain fell over the west side of Brownsville, including the River Bend Golf Resort, which saw widespread road, drainage, and Resaca flooding. The Brownsville Police Department reported water 1 to 1.5 feet deep at the intersection of Bates and Dews near the Brownsville and Matamoros International Bridge.

Heavy Rain in CAMERON, TEXAS
From 24-MAY-15 02:00:00 to 24-MAY-15 04:00:00 (CST-6)
Location: (BRO)BROWNSVILLE ARP
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Brownsville ASOS reported 2.75 inches of rainfall in 2 hours.

Heavy Rain in CAMERON, TEXAS
From 24-MAY-15 01:40:00 to 24-MAY-15 04:00:00 (CST-6)
Location: PORT ISABEL ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Bayview/Port Isabel ASOS reported 2.92 inches of rainfall in 3 hours.

Flash Flood in CAMERON, TEXAS
From 24-MAY-15 02:45:00 to 24-MAY-15 04:45:00 (CST-6)
Location: PORT ISABEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

South Padre Island Police Department reported water 1 to 1.5 feet to knee deep on some roads, with only the center lane open on Padre Boulevard from the 3500 block to the 5000 block.