LAKE CHARLES - Parts of southwest Louisiana could face flash floods as the slow-moving storm battering Texas continues to dump rain on both states.

  

National Weather Service meteorologist Roger Erickson says around 10 to 15 inches of rain inundated Lake Charles and Cameron over the weekend.

  

He said rainfall is expected to expand further east in the region through Tuesday.

  

Intense rainfall may overwhelm local drainage systems. A flash flood watch remains in effect until 7 p.m. Monday for Acadia, Allen, Beauregard, and Vernon parishes.

  

Louisiana isn't out of the woods. Erickson said "a major storm" could strike the already affected area Thursday or Friday.

  

The weather service says flash floods could occur in parts of southwest Louisiana, a result of the catastrophic rain being dumped in the aftermath of Hurricane Harvey.