In North Fulton Saturday, some trees were down, taking down power lines.

Sandy Springs reported on its Facebook page that trees and power lines were down at Riverside Drive and River North Court. They also said trees and wires were down on Johnson Ferry Road near Kayron Drive.

“The winds are going to be a factor in your weather today,” the city said on Facebook. “Please be careful.”

Alpharetta reported that roads were clear, but said some patches of black ice might still form.

“Our crews will be treating them, but careful out there,” the city said in a tweet.

In Fulton County, libraries, parks and other events have been canceled.