When the cold front goes off the East coast Monday, dry cold air will flow into the Northeast and the warm spell will be over.
The storm this weekend will produce nasty weather and may cause damage from severe storms and flooding.
This map shows a projection from last night's European model. It shows an huge temperature difference in a short distance across northern and central New England.
The models continue to show a very deep low pressure system approaching the United Kingdom & Ireland near Christmas Day.