BIRMINGHAM, Ala. (AP) -- The mix of heavy rains and colder temperatures is causing potential weather problems across Alabama.
The National Weather Service says persistent rains already have caused flash flooding in areas, and it has issued flood warnings for the Tennessee Valley region and west Alabama.
Some parts of north Alabama received up to 3 inches of rain quickly, and forecasters say additional rains will only increase runoff and cause more flooding.
Meanwhile, forecasters say there is a chance of periods of freezing rain in northwest Alabama through Tuesday morning as cold are filters into the state. The threat will end as temperatures gradually rise.
The weather service says a stalled frontal boundary is to blame for the rain.