A total of 2 to 3 inches of rain in Northeast Georgia could fall in the next couple of days as a low-pressure system continues to move along the Appalachian Mountains. The heavy rain could cause isolated flooding, according to the National Weather Service, which issued flash flood warnings Monday for Habersham and Rabun counties. The forecast calls for a 90 percent chance of showers today, dropping to 40 percent tonight and 10 percent Wednesday.