A former tropical disturbance being watched by hurricane forecasters failed to form into a tropical depression before reaching the Louisiana coast, but it still threatens downpours and flash flooding as it marches inland on July 18,

New Orleans is expecting more heavy rain Thursday as the National Hurricane Center monitors a tropical disturbance.

There’s growing concern for another significant rain and flooding event this week, this time along the Gulf Coast, from what could become the Atlantic basin’s next tropical system.