Shaky was talking about 96 hours, NBLSB was talking about 120 hours...
The cold spell lasts an extra 48 hours, and it's not just the airflow that increases chances of snow. Some continental feeds can be dry.
The cold spell looks to last into Friday now with -6 uppers still around
Considering the GFS showed a break down on Wednesday on yesterdays 12z, this is a good improvement, lets hope this continues