Significant snowfall amounts are expected on Sunday into Monday, with Connecticut facing 12 to 18 inches of snow from this major winter storm. Here's the latest timing (in three-hour increments) of how the snow accumulation is expected to progress across the state.

A blast of arctic air is headed into the region on Monday night, leading Connecticut officials to activate the state’s severe cold weather protocol.

By some measures, this may end up being Connecticut's longest stretch of cold weather since the winter of 2017-18. That season saw an unbroken string of subfreezing temperatures that lasted for 14 days, after temperatures dropped below freezing the day after Christmas.

Preparing for severe winter storms and deep freezes is now a baseline expectation for utilities across New England

The forecast said Connecticut on Saturday will experience temperatures in the high teens. However, the rest of the week as well, Jan. 26 through Jan. 30, is expected to see sub-freezing temperatures, with overnight low temperatures in the teens and single digits.

The amateur weatherman provides forecasts to his growing Facebook following as a hobby when he's not working his full-time job as a customer quality engineer.