Heat, humidity to trigger more summer storms



Thursday: High: 92

Thursday night: Low: 74

Friday: High: 89

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

A combination of heat and humidity will fuel a round of summer storms Thursday, according to Channel 2 Action News.

Dew points are already in the low 80s to start the morning, and they will only get higher as the day goes on. Add that to an expected high of 92 degrees Thursday, and much of metro Atlanta will get wet, Channel 2 meteorologist Karen Minton said.

The coast is clear of Tropical Storm Chris, which sent drier air over North Georgia over the last few days. Now that Chris is moving northeast across the Atlantic to cooler waters, more moist, humid air is moving in, according to Channel 2.

“Humidity is on the rise,” Minton said. “With that added moisture, we’re going to start to see showers developing a little earlier today, right around lunchtime.”

There is a 40 percent chance of scattered afternoon showers and storms Thursday, with east Georgia at the highest risk of severe storms. Damaging winds are the biggest concern, Minton said. 

“But any of these storms that you see across the metro area today could produce that damaging wind, a lot of lightning and some very heavy rain, so just keep that in mind today as you’re out and about,” she said.

It’s possible that one or two strong storms could develop over metro Atlanta, according to the latest forecast from Channel 2. 

The wet stuff should continue through Friday and into the weekend. Between Thursday and Sunday, Minton said some areas could receive one to two inches of rain.

The chance of rain increases to 60 percent Friday and holds through Sunday. Storms should not be as widespread on Friday and Sunday as they will be on Saturday, according to Channel 2. 

“Saturday, we’re going to see a lot of activity,” Minton said. “Some of those could be on the stronger side.”

Saturday should also be the coolest day of the weekend with a high of 87 degrees. The rain should help to keep temperatures down “because of the clouds and the showers in the area,” Minton said.  

Not so for Thursday, which she said will be the hottest day of the week. 

Thursday’s storms could affect a few Georgia Department of Transportation road closures across Atlanta and Cobb County.

The WSB 24-hour Traffic Center reported two left lanes of Spring Street are blocked near 18th Street for construction until Monday. 

Drivers are navigating a few early incidents to start the Thursday morning commute.

In Douglas County, a crash involving three tractor-trailers is tying up traffic on Thornton Road before I-20.

MORE: 3 tractor-trailers collide, jam traffic before I-20 in Douglas County

The crash has all but one northbound lane of Thornton Road shut down north of Maxham Road, the Traffic Center reported. Drivers can take Riverside Parkway as an alternate to I-20.

Further east on I-20, a sanitation truck hit an overhead sign approaching Chapel Hill Road, flattening tires on multiple cars, according to the Traffic Center. Two right lanes are blocked. The Traffic Center suggests U.S. 78 as an alternate to avoid the delays.

(Channel 2 Action News)

» 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.

2018-07-12 11:37:30

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