He added that he may add more counties to the list as the severe weather rolls through north Georgia.
House Speaker David Ralston, who represents part of the area under the emergency order, said he is praying "for the state and local emergency personnel who will be away from their families today and tonight rendering aid to those impacted by this severe weather."
A storm front that spawned deadly tornadoes in Mississippi, Tennessee and Arkansas pummeled metro Atlanta and north Georgia on Thursday, and more rain was forecast through Christmas Day.
The weather system has spawned two dozen tornadoes in six states from Indiana and Illinois to the Deep South, killing three people in Mississippi, two in Tennessee and one in Arkansas.
Read more about the storms by clicking here.