the latter case, the Sabinas River flooded to become in width, causing 400–500 homes to go underwater. Some bridges on Mexican Federal Highway 57 were covered in water. Thousands of citizens in Ciudad Acuña were evacuated when the Arroyo Las Vacas flooded after of rain fell on nearby mountain ranges. The flood damaged 1,000 homes, damaging urban infrastructure, power, water and telecommunication services; 500 people sought refuge in shelters. The loss of power caused 40 maquiladoras to suspend their activities, stopping 16,000 workers. The rainfall caused damage in 15 municipalities of Coahuila, affecting 10,000 people, and causing at least $1 billion (2010 MXN; US$76 million) in damage in the state. United States In southern Texas, the feeder bands on the northern side of the hurricane began producing tropical-storm-force winds throughout Cameron, Willacy and Kenedy Counties starting on June 30. The highest reported sustained wind was of at the southeast tip of Port Isabel. The strongest gust occurred over the Queen Isabella Causeway, where a wind speed of was measured. Sustained winds of and gusts of were measured in Bayview. The feeder bands also produced heavy rainfall, leading to flooding on South Padre Island. A storm surge of was reported on the island, causing moderate beach erosion. However, more significant damage was avoided as the bulk of the storm tide hit South Padre and Port Isabel at low tide. Nine tornadoes were confirmed to have touched down in the state in association with the storm, one of which overturned a mobile home. Other tornadoes caused mainly minimal damages to trees and shrubbery. About 9,000 customers lost power throughout Texas. Large amounts of precipitation fell throughout the Lower Rio Grande Valley, with of rainfall recorded throughout the region. Brownsville Airport had of precipitation in a 36-hour period. The of rain that fell alone on June 30 broke the daily rainfall record of from 1995. McAllen, Texas, measured of rain on June 30, which now constitutes the city's wettest June day on record. In Houston, more rain fell on the first two days of July than the average rainfall for the entire month of July. Some parts of the city received nearly of rain over three days, causing scattered street flooding. Flooding caused by the rainfall from the remnants of Alex caused the Rio Grande at Foster Ranch, in far western Texas, to exceed , well above the flood stage at and the