Areas of freezing rain, resulting in hazardous road conditions, occurred the morning of the 18th. High pressure over the northeast slowly retreated ahead of an approaching low pressure system, keeping northeast flow over the Mid-Atlantic for a good portion of the night on the 17th and allowing for surface temperatures to drop into the 20s. As the high moved offshore, warm air advection with an increasing low level jet overrode the colder air at the surface, producing light rain along the I-95 corridor, with pockets of freezing rain especially along bridges and overpasses.

Winter Weather in NORTHWEST HOWARD, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 11:03:00 (EST-5)
Reported by: Broadcast Media

Multiple accidents were reported around the county, resulting in road closures.
Around a trace of ice was reported.

Winter Weather in SOUTHERN BALTIMORE, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 11:03:00 (EST-5)
Reported by: Broadcast Media

An accident involving a Maryland Transit Administration bus was reported on Rocklyn Ave near Milford Mills. Reported by the Baltimore Sun. Six people were sent to the hospital as a result.
All lanes of I-83 were reported closed during the morning hours near the Northern Parkway.

Around a trace of ice was reported.

Winter Weather in SOUTHEAST HARFORD, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 12:00:00 (EST-5)
Reported by: Broadcast Media

Multiple accidents were reported around the county, resulting in road closures including: Franklinville Road is closed after a vehicle went into a guardrail after 11 a.m.; Route 1 (south) at Reckord Road was closed due to ice; Route 165 at Baltimore County line; MD Route 543 between Route 22 and Thomas Run Road; Route 543 at Southampton Road.

Around a trace of ice was reported.

Winter Weather in NORTHERN BALTIMORE, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 13:03:00 (EST-5)
Reported by: Broadcast Media

Multiple accidents were reported across the county resulting in road closures including: MD Route 136, especially near Northern Dancer; Bel Air Bypass.
A trained spotter reported icy conditions near the intersection of Loch Raven Reservoir and Morgan Mill Rd.
Around a trace of ice was reported.

Winter Weather in CENTRAL AND SOUTHEAST HOWARD, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 11:03:00 (EST-5)
Reported by: Broadcast Media

A 49 car pile up occurred near the intersection of U.S Highway 40 and Chestnut Hill Dr. The accident was reported on the down-hill slope on US 40 as cars were driving towards the Patapsco River. Traffic was shut down in both directions as a result, with roads opening after 1 pm. The accident occurred around 8:45 am. Reported by the Baltimore Sun.
Another accident occurred near the intersection of Highway 40 and Interstate 70, resulting in a 30 car pile. Roads were closed till around 10:30 am.
Around a trace of ice was reported.

Winter Weather in NORTHWEST HARFORD, MARYLAND
From 18-JAN-15 06:28:00 to 18-JAN-15 12:00:00 (EST-5)
Reported by: Broadcast Media

An accident occurred near the intersection of Route 23 and High Point Rd in Forest Hill. The accident was a result of a head-on collision of two cars, resulting in one fatality and three injuries. One of the cars hit a patch of black ice, causing it to cross the median and collide with the on coming car.

Around a trace of ice was reported.