Texas Gov. Greg Abbott issued disaster declarations for dozens of flooded counties in south Texas that have been hit with torrential rains. 

The flooding has washed out roads and farmland, and dozens of people have had to be rescued from rising waters, News4Jax reported. 

Rains are expected to continue into Wednesday, and some areas may see an additional 10 to 20 inches of rain, the New York Times reported. The chances of flooding are expected to diminish across the state by Thursday, and the weekend is forecasted to be dry. 

Abbott said that the National Guard and its Black Hawk helicopters are available to respond to dangerous conditions.