Philly looks good for about 2-3" of cement
NYC Metro should get in the 3-5" range with sleet entering the picture for some time during mid-storm...esp. down in Queens.
Boston looks good for at least 3"..maybe more but it looks dicey at this point.
Generally look for Jackpot region to extend from the Lehigh VAlley region thru N NJ...NYC NW 'burbs..interior CT...N RI...and possibly just S of Boston Metro.