LIVE WEATHER-TRAFFIC: Multiple I-285 lanes blocked in Sandy Springs due to flooding

UPDATE [9:57 p.m.]: Multiple lanes of I-285 West are blocked just before Roswell Road due to flooding, according to Sandy Springs police. It's unclear what is causing the road to be flooded with water.

It’s 28 degrees in Atlanta, and temperatures are expected to drop down to 25 degrees overnight, according to Channel 2 Action News.

ORIGINAL STORY: While Atlanta's chilly day continues, drivers in Gwinnett County are being forced to hold their horses during the evening commute.

Multiple lanes of I-85 North are blocked near Ga. 317 after a horse trailer and tractor-trailer were involved in a crash, according to the WSB 24-hour Traffic Center.

MORE: Horse trailer wrecks on I-85, blocks 3 lanes in Gwinnett

On the opposite side of metro Atlanta, a crash is stifling I-20 West at Chapel Hill Road in Douglas County, according to the Traffic Center. Multiple lanes are blocked, and delays span close to Cobb County.

It was cold when Atlantans woke up Tuesday, and it’s even colder now, according to Channel 2 Action News. On the bright side, it’s been sunny instead of rainy, allowing the pavement to dry after some morning showers.

On a less positive note, the 30-mph wind gusts also helped dry off the roads — and contribute to a frigid day in North Georgia.

After starting in the upper 50s, Atlanta has seen temperatures drop 20 degrees since the early morning hours. The wind chill has dropped that even further, with Atlanta feeling like the mid-20s at 5:30 p.m.

It was not quite cold enough in metro Atlanta for any of the rain to freeze Tuesday morning, but some areas in the mountains saw a sleet and snow mix. Schools in Fannin County were on a two-hour delay to account for the slick conditions.

The projected high is only 43 degrees.

All of North Georgia is under a wind advisory until 7 p.m. From then on, a freeze warning is in effect for metro Atlanta and communities to the south in advance of even colder weather Wednesday.

Morning lows could be in the 20s. The freeze warning is scheduled to expire at 10 a.m.

In preparation for the sub-freezing temperatures, emergency warming centers will open in Atlanta as well as DeKalb, Cobb and Douglas counties.

From 6 p.m. Tuesday until 9 a.m. Thursday, the Old Adamsville Recreation Center at 3404 Delmar Lane in northwest Atlanta will be open as a warming center.

Two warming centers will open at 7 p.m. in DeKalb.

RELATED: For two days, Atlanta will open warming center ahead of freezing temps

In Marietta, MUST Ministries’ community kitchen on the Elizabeth Inn shelter campus at 55 Elizabeth Church Road will be open to women and children starting at 8 p.m. Men are referred to The Extension nearby.

First United Methodist Church at 6167 Prestley Mill Road in Douglasville will also act as a warming center from 7 p.m. Tuesday until 8 a.m. Wednesday.

Another weather system is expected to bring more rain Thursday and Friday, but Monahan said North Georgia will thaw and clear out by the weekend.

“A really nice weekend is in the forecast,” he said.

» For a detailed forecast, visit The Atlanta Journal-Constitution weather page.

» For updated traffic information, listen to News 95.5 and AM 750 WSB and follow @ajcwsbtraffic on Twitter. 

» Download The Atlanta Journal-Constitution app for weather alerts on-the-go.