WEATHER-TRAFFIC UPDATE: I-75 South reopens after multiple wrecks in Cobb

ATLANTA FORECAST

Tuesday: High: 80

Tuesday night: Low: 70

Wednesday: High: 82

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

Multiple wrecks in Cobb County brought traffic to a sudden stop on I-75 South at South Marietta Parkway, but all lanes have now reopened, authorities said Tuesday.

The Cobb County Department of Transportation tweeted that multiple vehicles crashed, including a jack-knifed tractor-trailer. All lanes were closed for about 45 minutes, leaving big delays nearby.

Elsewhere, a wreck on I-85 South before Pleasant Hill Road also blocked all lanes but that wreck cleared about 4:30 p.m., according to the WSB 24-hour Traffic Center.

A UPS truck was hit by a sedan while crossing Camp Creek Parkway near Westlake Parkway, South Fulton Fire Chief Jack Butler told Channel 2 Action News. One person from the sedan was taken to a hospital in critical condition.

In Alpharetta, all lanes of Morrison Parkway were shut down between Lake View Parkway and Hembree Road due to a wreck, police said via Twitter.

Scattered downpours have begun reaching the metro area and more rain is promised throughout the week thanks to Subtropical Depression Alberto, Channel 2 Action News meteorologist Karen Minton said.

The system is now near Birmingham, Ala., and moving toward Tennessee, but metro Atlanta is feeling the effects.

“These bands will continue,” Minton said. “So while your friends across town may not get the rain at the same time you are, it will eventually cycle around and you’ll get those showers.”

Alberto made landfall Monday afternoon in the Florida panhandle and weakened to a depression Tuesday morning. It could bring at least 2 inches of rain to some parts of the metro area, Channel 2 reported.

There is a 90 percent chance of rain Tuesday, with chances steadily dropping throughout the week to a drier weekend, according to the latest forecast from Channel 2.

Also, a flash flood watch is in effect through 8 a.m. Wednesday due to all the soggy turf and swollen waterways.

MORE: Does the flash flood watch affect you?

The National Weather Service said the greatest amounts of rain will be in north and west Georgia.

“Some of these amounts could fall in a short period of time,” the Weather Service said. “Creek and river levels are already above average and will not take much additional rainfall to cause levels to rise above bankfull.”

High water may not recede until well after Alberto moves out of the Southeast, according to the Weather Service.

“There could be some flooding and some ponding on the roads,” Minton said. “Please use extra care as you’re traveling on the road. The visibility really drops down as you’re out there with heavy downpours.”

That means those planning on attending tonight’s game between the Braves and New York Mets should be careful on their way to SunTrust Park.

The likelihood of heavy traffic nearby is high, and Channel 2 meteorologist Brian Monahan said the chance of rain is a fairly high 60 percent approaching the 7:35 p.m. first pitch. Rain delays are also a possibility.