For most of the afternoon, Cobb County was stricken by wrecks and congestion, but those problems have migrated south for the evening commute.

Clayton County is being affected by multiple wrecks near the Perimeter, according to the WSB 24-hour Traffic Center.

A center lane of I-75 North is blocked at I-285, creating delays back to Forest Parkway, according to the Traffic Center.

On the inner loop past Riverdale Road, a tractor-trailer’s load shifted out of place, causing a left lane to be blocked, the Traffic Center reported. Delays span past I-85 into south Fulton County.

I-20 in DeKalb County is the other area being affected by a crash, according to the Traffic Center. A westbound lane is blocked at Glenwood Avenue.

Wednesday could be the last day this week for dry conditions and temperatures in the 70s, according to Channel 2 Action News. Atlanta hit its projected high of 71 degrees and has begun to cool down as the sun sets.

A strong cold front is headed for North Georgia to end the work week, bringing showers and cooler air with it.

“North of that cold front, it’s really cold,” Channel 2 chief meteorologist Glenn Burns said. “There’s a lot of snow on the ground (in Canada and the northwest U.S.) ... so the air is staying cold and chilled as it spills toward the Southeast.”

The approaching cold front is expected to spread showers across North Georgia beginning Thursday evening and continue through the overnight hours. Its pace has quickened some, Channel 2 meteorologist Brian Monahan said.

“That also means with that faster timeline that rain will be gone by Friday morning’s commute,” he said. “So will the warm air. We'll go from the upper 60s Thursday into the mid-50s Friday.”

Even lower temperatures are in the forecast for the coming days. Saturday morning is expected to start out near freezing in Atlanta, and parts of North Georgia could see numbers in the 20s, according to Channel 2.

Burns said the cooling trend continues into next week with afternoon highs 15 to 20 degrees below average. That would put Atlanta in the 40s for highs.

“We’re likely going to see record cold (weather) for the eastern half of the country,” he said. “It’s going to be brutal here.”

For some perspective, the average low for this time of year is 48 degrees.

Atlanta still has a few days to go before the weather is that cold, so enjoy the more mild temperatures while you can.

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