The forecast has remained largely unchanged for several days, and I see no need to change it now.
So Far: The initial batch of snow that moved in Wednesday afternoon mixed with, and then changed to, rain for most around Greater Boston by evening. Hingham and Boston both picked up 0.9″. Many other areas picked up 1-3″.
What’s Next, Thursday Morning: Another batch of steadier precipitation will move through early Thursday morning. However, warming aloft and winds off of the ocean will keep this primarily rain (with just minimal mixing) from Boston south and east. As a result, roads will be more wet than anything else.
However, north and west of Boston (especially north and west of 495) will still be dealing with snow (and a little occasional mixing). As a result, that is the area favored for additional snowfall.
Everyone will transition to more sporadic, lighter precipitation by lunch.
Thursday Afternoon: As the light precipitation winds down Thursday afternoon and evening, enough cold air will move in to have things end as a touch of snow. Again, this will be light and won’t be too troublesome.
Final Accumulations: No changes from my first forecast several days ago. Boston, the South Shore, and Hingham will see 0-2″ between Wednesday and Thursday (most has already fallen).
From Boston north and west to I-495, expect today day totals between 2 and 5″. Outside of 495, 5″+ will fall.
Feel free to post your weather observations or storm questions in the comments.