As of 9:30 a.m. Tuesday, traffic was slow on southbound I-95 before the Fort McHenry Tunnel Toll Plaza, due to an accident involving two vehicles.
Eastbound U.S. 50 at Oceanic Drive was congested due to a collision involving two vehicles.
Route 32 at West Linden Church Road in Howard County was the scene of an accident involving three vehicles.
Route 778 at Fairhaven Drive in Anne Arundel County was closed in both directions over a utility problem.
Also in Anne Arundel, high water in the road was causing potential delays on Route 214 at Route 2.
In Harford County, Route 152 at Old Joppa Road was closed in both directions due to a utility problem.
Debris in the road was causing traffic congestion on southbound I-95 near Mountain Road in Harford County.
Maryland's Department of Transportation has asked drivers and pedestrians to use "extreme caution" because some routes have downed power lines or malfunctioning signals.
The Maryland Mass Transit Administration said in a statement that its light rail line will offer regular service from North Avenue to the Cromwell and BWI Marshall Airport stops on Tuesday, but the MTA is using buses to serve passengers who want to travel between North Avenue and Hunt Valley because crews are working along that route to repair damage to power lines and remove fallen trees.
Amtrak is informing passengers that most Northeast Regional service will operate south of Philadelphia on Tuesday, but no Acela Express, Northeast Regional or other Amtrak trains can operate north of Philadelphia to New York. That affects passengers who want to depart from Baltimore and travel north of Philadelphia.