U.S.

    Motorists navigate deep water on after heavy rain showers flood much of the city, Saturday, May 23, 2015 in Amarillo, Texas. Amarillo received 1.7 inches of rain according the National Weather Service. (Michael Schumacher/The Amarillo Globe News via AP)

    An urgent warning for a Texas city

    "Right now is not the time to return to your homes," emergency officials warned residents in San Marcos, Texas. Heavy rain has turned streets into rivers and forced hundreds to evacuate. "There are power lines down, debris in the roadways, bridges undermined -- this is not the time to start moving," Emergency Management Coordinator Ken Bell said.

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