Louisiana and Mississippi are bracing for heavy rains and potentially dangerous flooding as a tropical disturbance moves in. The storm, currently centered just off the Mississippi Gulf Coast, is unlikely to strengthen to a tropical depression.

Its chances for tropical development are less, but rainfall flooding is a threat, regardless, in the lower Mississippi Valley. Here's our latest forecast.

Torrential downpours expected to unleash dangerous flooding across southern Louisiana, challenging drainage systems as tropical rainstorm lingers. Southern Louisiana, particularly the New Orleans metropolitan area,