The National Weather Service issued a heat advisory for Bartow County and northern and central Georgia that warns of dangerous heat Saturday and Sunday.

In effect through 8 p.m. Sunday, the advisory covers locations and areas west and south of a line from Eton to Canton and Gainsville and northwest from a line near Athens through Macon and Lumpkin.

Heat index values, which were near 105 degrees Friday afternoon, are expected to increase to 105 to 110 degrees this weekend. Heat indices peak during the afternoon and into early evening.

"Consecutive days of excessive heat can have a cumulative effect on the human body. Heat of this magnitude and duration can trigger heat-related illnesses such as heat exhaustion or even heat stroke," according to the advisory. "Never leave children or pets unattended in a car, even with the windows rolled down."

A heat advisory means a period of dangerous heat is expected and the combination of hot temperatures and high humidity will create heat index readings of at least 105 degrees and very warm overnight temperatures.

NWS predicts Cartersville will near a high temp of 105 degrees on Saturday and 103 on Sunday. Heat indices are forecast at 109 and 107, respectively.

To stay safe:

• Drink plenty of fluids.
• Stay in an air-conditioned room.
• Stay out of direct sunshine.

Dress in loose-fitting, lightweight and light-colored clothes that cover as much skin as possible and avoid strenuous work during the warmest part of the day are other tips to beat the heat during the dog days of summer.

Remember, the elderly, the very young and people with heart conditions are most at risk in extreme heat. Friends, relatives and neighbors should check on people who may be at risk.