A big storm brewing

A big storm is brewing, and it going to hit hard in New England this Tuesday. Currently a deep trough is extending into the southern states.

The difference between the blue and red dashed lines is the critical thickness, or an estimated idea of where you might expect snow (blue being cold enough for snow).
From satellite you can make out some of these features in the clouds

By Tuesday the low pressure center reaches Boston

Update: January 27, 8:30 AM
IR satellite image shows the storm.

Lots of fun pictures from the Washington Weather Gang