Slight west jog on the 18z GFS precip, but more wet. Widespread 0.5” QPF close to what the 3km Nam had. Also an area of 0.6” QPF. Using 14:1 averaged SLR this is 7-8.4” snowfall. Going to be a wild night for meteorologists. Huge boom or bust potential here. #ncwx pic.twitter.com/rdCDL5ZapH

— Dr. Jonathan Wall (@_jwall) January 16, 2018