Well, just as scooter told me hours ago there is coating on the roofs and grass and the Temps are falling steadily. Down to 33.6 here from 36 at midnight.
I live in west Somerville but work mostly out in East Somerville and East Cambridge. I have plowed my driveway with 2 or 3" and driven 3 miles east to be met with a dusting or sometimes rain. I don't think it will be that bad but I do expect a gradient.
That wind is a bitch to forecast. Having just watched the TV Mets they are also putting up caveats about it. Bz just posted a map about the area of greatest uncertainty and it was boston down 24 to 495.
FWIW Bouchard has a graph showing in Boston metro being above freezing until late Sunday morning and not accumulating much until after Noon. Of course he also has Boston at 3" for a total.
Local Mets are all over the place. Some say a fast mover, others a long duration, still others say rain/sleet is an issue. Fisher mentioned shearing and strung out as an issue. Still early at least.