The GFS says N&W of Philly doesn't get out of the teens next Tuesday. Never seen it that cold this late.
Canadian is only slightly higher with low 20's
It's the same as the last modeled ice storm at this point in time. Over the next couple days it continued to tick north and that was that. The cold was there and it lost last time this will be interesting if it repeats.
March opens with Highs in the 20's and single digit lows that's cold in January. No reason to believe anything beyond that other then the pattern is to torch and reload the cold. Snow in April dude wait and see.
It's over man all done with analogs and 30 & 90 day outlooks with possible exception of Weather World they seem to have a magic ability to get 30 days right. Record cold coming for the time period that was going to be mild early spring.
Euro one storm too north, one too south then the meteorological north pole drops in to start March. Basically winter of 2022 sample platter if that happens.