ATLANTA (AP) — Temperatures plunged into the 20s in many parts of Georgia -- and dropped to 13 in one spot in the mountains -- as cold air settled over the state.

National Weather Service data at 5 a.m. Tuesday showed that it was 23 degrees in Cartersville and Gainesville; 24 in Rome; and 25 in Marietta.

A U.S. Forest Service weather station recorded 13 degrees near Brasstown Bald -- Georgia's highest peak -- at 5:06 a.m. Tuesday. Another forest service weather station in Murray County, also in the north Georgia mountains, showed it was 19 degrees there shortly after 5 a.m.

National Weather Forecasters say a wind chill advisory has been issued for the north Georgia mountains between 4 a.m. and 11 a.m. Tuesday. A freeze warning in parts of central Georgia is also expected to expire at 10 a.m.