![]() ![]() He said the city has tried a couple of automated systems, where flashing lights come on and arm poles drop over a flooded road after a monitor detects rising water, but thieves targeted them. Garza said the city relies on crews to place barricades to keep motorists out of flooded low-water crossings. “You can actually click on one of those low-water crossings, and, if you are interested, you can actually subscribe to receive a test message or email when that low-water crossing is flooding.” “We have a computer system that we receive notification when water begins flowing and water begins rising, and it even tells us the moment when water goes over the road.”īexar County residents can monitor all the low-water crossings at, where they can select the most dangerous low-water crossing near you to receive customized updates. ![]() Nefi Garza, in charge of managing storm waters for the city’s Transportation and Capital Improvements Department, said there are 146 low-water crossings in Bexar County, which are monitored in a high-tech and joint way with the county. ![]() The weather service reports half of the flash flood fatalities in Texas occur in the I-35 corridor from San Antonio to Austin and into the Hill Country. San Antonio, like Austin, is pressed up against the Hill Country, in what is known as flash flood alley and where flooded low-water crossings claim the most lives when motorists drive through them. Heavy rains from Hurricanes Madeline and Lester unleashed torrents in the area that caused 11 deaths in Bexar County and $750 million in damage. The 1921 flood spurred the construction of the Olmos Dam and the bypass channel through downtown San Antonio that would later become the River Walk.įorecasters also said that in October 1998, two Pacific hurricanes, not Atlantic ones, caused deadly flooding in San Antonio. While the storm is nearly a century old, it left behind some very visible landmarks to prevent the future flooding of downtown San Antonio. Adjusted for inflation, the storm is still the most expensive in San Antonio history. NWS reported the remnants of a tropical storm that year caused flooding that damaged downtown, killed 51 residents and left behind $5 million in damage. The deadliest and costliest storm to have originated in the tropics and arrive on San Antonio’s doorstep was in 1921. The season ends on November 30, and South Texas tends to see the worst tropical weather in August and September. The first three storm names will be Andrea, Barry and Chantal. “Tropical storm-force winds on a big storm like that is not out of the question, especially for our southeastern counties,” Williams said. He said sustained winds up to 70 mph are possible deep into South Texas if a Category 4 or 5 hurricane were to hit the coast around Corpus Christi. Williams said the biggest threats to South Texas are heavy rains and flash flooding, especially if a Category 4 or 5 storm strikes the coast. NWS forecaster Brett Williams predicted an average season because the wind shears created by El Niño are expected to cut through and destroy several of the tropical storms that will grow over the warm waters of the Gulf of Mexico. Forecasters with the National Weather Service expect an average Atlantic season with nine to 15 named storms, including four to eight hurricanes and two to four major hurricanes. Hurricane season began this year on June 1. ![]()
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