(RALEIGH) -- The tropical depression that was Lee could pose a greater threat inland than the tropical storm did to the gulf coast. Forecasters say the threat now is flash flooding in the Appalachians. The National weather Service in Raleigh has issued a flash flood watch in effect from 6:00 PM Monday through 6:00 AM Wednesday morning.

The remnants of Tropical Storm Lee will become an extra-tropical low pressure system and interact with a stalled frontal zone over the region to produce heavy rainfall into Wednesday morning.

Once the ground becomes saturated tonight and the heavier rainfall rates arrive, flash flooding of low lying areas along creeks and streams will occur. This includes urban and rural areas. Occasional, heavy rainfall rates are expected tonight and into Tuesday.

The flash flood watch affects the following North Carolina counties: Alamance, Anson, Chatham, Davidson, Durham, Forsyth, Franklin, Granville, Guilford, Lee, Montgomery, Moore, Orange, Person, Randolph, Richmond, Stanly, Vance, Wake and Warren.