State Of Emergency: Massachusetts Gov. Charlie Baker has declared a State of Emergency and all cars have been ordered off the road as of 12 a.m. Tuesday.

Emergency Numbers: In Massachusetts dial 211 for non-emergency storm assistance.

Blizzard Warning: South Worcester, Essex, Middlesex (except northwest Middlesex), Suffolk, Norfolk, Bristol, Plymouth counties from 7:00 p.m. Monday through 1:00 a.m. Wednesday, and for Barnstable and Dukes counties from 7:00 p.m. Monday through noon Tuesday.

Winter Storm Warning: Berkshire, Franklin, Hampshire, Hampden, north and central Worcester and northwest Middlesex counties from 7:00 p.m. Monday through 1:00 a.m. Wednesday.

Taxi/Ride-Share Service: Uber and Lyft will be unavailable beginning at 12 a.m. Tuesday until the travel ban is lifted. Taxis may operate if they are transporting an exempt category.

Tolls Waived: Beginning at 10 p.m. Monday, tolls will be waived in both the Eastbound and Westbound directions along the Massachusetts Turnpike, the Tobin Bridge, and the Harbor Tunnels.

Mail Delivery: All post offices in the Greater Boston District will be closed on Tuesday due to dangerous weather conditions forecast throughout the region. There will be no mail delivery or pick-up as a result.

MBTA: All modes of MBTA service will be suspended all day and night on Tuesday.

Logan Airport: Domestic flights ended at 7 p.m. Monday, international flights end at 10 p.m. Check: Real-Time Flight Information

Amtrak: Amtrak has suspended Northeast Regional and Acela Express service between New York and Boston on Tuesday, Jan. 27.

Steamship Authority: The Steamship Authority has suspended ferry service as of 7 p.m. Monday. All of Tuesday's ferry service suspended for the islands of Martha's Vineyard and Nantucket.