After shutting down for nearly two days, the MBTA is back to normal this morning after providing limited service on Sunday afternoon. The B-line on Boston University’s campus, along with the other MBTA buses and trains, are back on their regular schedule.

State officials are urging commuters heading back to work in Boston to exercise caution and allow extra time to enter the city.  Some trolleys and commuter rail lines have experiencing delays up to 15 or 20 minutes due to the weather conditions.

Classes at Boston University resumed on Monday morning. However, some Boston Public Schools and other K-12 schools remain closed until further notice.

Approximately 110,000 Massachusetts residents remain without power, but it is slowly being restored across the state. National Grid says that some of the hardest hit areas will be repaired by Tuesday.

Related:

• Boston.com Power Outtage Map
• Mbta.com Service Updates
• WBZ: School Closings