Icy roadways after an overnight freezing rain led to several school delays and traffic issues Wednesday morning.
Carroll County Public Schools were closed, while several school systems including Allegany County, Baltimore County Hereford Zone and Frederick County, announced delays.
Black ice caused slippery road conditions during the morning commute throughout the region.
— Lauren Cook (@LaurenCookABC2) January 11, 2017
Harford County officials urged drivers to "slow down and drive carefully."
National Weather Service warns of icy spots on the road this morning. Please slow down and drive carefully. Thanks & be safe!
— Harford County Gov't (@HarfordCountyMD) January 11, 2017
A freezing rain advisory was in effect for parts of Maryland until 1 a.m. Wednesday. Allegany, Baltimore, Carroll, Frederick and Washington counties were under the weather alert.