Gov. Ned Lamont has declared a state of emergency and will prohibit commercial vehicles on Connecticut's highways during the height of a winter storm that is expected to bring a foot or more of snow on Sunday.

Forecasters are predicting 8 to 15 inches of snow with the possibility for closer to 18 in the northwest corner of the state. Norwich, specifically, is expected to see 13 inches, with a high estimate of 16 inches and low estimate of 7 inches, according to the NWS.

The National Weather Service is predicting up to 15 inches of snow in some parts of Connecticut between Sunday and Monday. It’s predicted to be the largest storm the state has seen in a decade.

Wind chills in parts of Connecticut could drop to 20-below zero on Saturday ahead of the massive winter storm on Sunday.

The meteorologist said that the record for snowfall in Bridgeport, Connecticut on January 25 is four inches, so it is possible that a record could be broken this Sunday, should the snow climb higher than four inches. He also said that it'll be in the 20s temperature-wise this coming week.

The cold weather protocol, which is in effect from 5 p.m. Thursday until noon Friday, is to protect the state's vulnerable population from prolonged exposure to conditions that could become life-threatening. During the protocol, warming centers will be open for anyone who needs it around the state, Lamont's release said.

Forecasters say as much as two inches will fall an hour and the mayor says students who have school tomorrow will attend remotely.

Arctic cold settles in Saturday ahead of a major winter storm to impact the region Sunday and Monday. Bill Kelly has the forecast.