Thunderstorms and heavy rain pounded parts of northwest Georgia on Sunday, sparking flash flooding in some areas. Local news reports showed roads under water and homeowners struggling to keep water out, the Associated Press reported. Georgia Gov. Brian Kemp declared a state of emergency in Chattooga and Floyd counties in response to "severe flooding" in the area. A flash flood emergency was declared for Summerville, where the Trion Fire Department said it responded to several calls due to flooding, calling conditions in a statement Sunday "extremely dangerous to drive in." Meanwhile, the city of Summerville issued a boil water advisory for all residents. "This is an extremely dangerous and life-threatening situation," the NWS said in a statement. "Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order." The National Weather Service said rainfall of up to one inch per hour was causing creeks, streams, roadways and urban areas to experience unusually high levels of water. Up to 10 inches of rain was reported to have fallen in Chattooga County. The service declared a flash flood emergency‌ for Summerville, Lyerly and James H. Floyd State Park in Chattooga County. Floyd County - just to the south - was also under a flash flood warning. Studies show climate change is increasing the likelihood and intensity of heavy rainfall that can lead to flooding. — Agencies