Flash flooding, up to 5 inches of rain possible this weekend in San Antonio

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Meteorologists are predicting 1-3 inches of rain this weekend across South-Central Texas as they monitor a potential tropical cyclone in the Gulf of Mexico. Some isolated areas could get as many as 5 inches.

There’s about a 60 percent chance the tropical cyclone will form in the next five days, the National Weather Service said, which is a slight decrease from the 70 percent chance predicted Tuesday. Regardless of development, heavy rain is possible as the system reaches Texas, according to the NWS.

Because so many areas in South Central Texas are still saturated from recent rainfall, as little as 1 inch of rain could cause flash flooding in some areas, meteorologists said, particularly at low water crossings and in urban areas.

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Any effects for San Antonio would occur between Friday and Sunday, weather service meteorologists predicted.

Earlier this week, Gov. Greg Abbott released a statement about the pending storm, encouraging residents to prepare.

“Texas is taking steps to prepare for a potential tropical system expected to impact the state. Urging all Texans to take precautions and review their emergency plans to prepare now,” Abbott said in a tweet.

Less than two weeks in, this September has already been the fifth wettest ever recorded in San Antonio, according to the National Weather Service. The city, which had received nearly 10.5 inches, as of Sept. 10, is only about 5 inches short of being named the rainiest September in San Antonio history. Currently, 1946 holds that record, with 15.78 inches of rain.

S. M. Chavey is a staff writer for mySA.com. Read more of her stories here. | sarah.chavey@express-news.net | 210-250-3122 | Twitter: @smchavey