This last full week in December has felt like deep winter across the eastern half of the nation. A deep trough has been reinforced by a series of systems maintaining the cold air. Across the the western half of the nation temperatures have been generally above normal under a ridge of high pressure. This pattern will change very little over the next week with the coldest air in a number of years visiting many areas east of the Rocky Mountains. 
Today a weak clipper system is exiting the Mid-Atlantic after dropping a few inches of snow across northern Ohio overnight. Today's high temperature will be around twenty (20). Lake effect snow will mainly affect the primary snow belt today under westerly flow; several inches of snow are likely. As the flow becomes northwest the snow will push further inland and could produce a couple inches of accumulation for areas outside the primary snow belt. Overnight colder air will arrive with high temperatures in the low to middle teens (10's) on Sunday.
Monday and Tuesday the weather will be controlled by a large but frigid high pressure system. The weather will mostly be dry though light snow showers and heavier squalls will be possible in the snow belt. High temperatures will be at most in the lower teens (10's) with low temperatures a few degrees on either side of zero (0). Wind chill advisories may be posted for the extreme cold.
Wednesday another low pressure system will begin to affect the area as high pressure moves away. This system will generate more snow with a few inches of accumulations likely. High temperatures may be around twenty (20).
Thursday may see the arrival if the coldest air of the season. High temperatures locally may not reach ten (10) with low temperatures several degrees below zero; wind chills will likely be a factor. After this surge of cold air a pattern change will be long over due and hopefully a warmer one will be on the horizon.








