New York/New England snowfall: The midday model indicates an area of snowfall develops across North-central Pennsylvania stretching to central New York State Sunday morning with 3-7 in. likely. The snow extends into southern New England Sunday evening. The GFS indicates heavy snow risk (>10 in.) into the west/north suburbs of Boston for Monday morning. The model indicates a 5-day snowfall forecast (valid to early next Wednesday) of >12 in. for central and eastern New York, southwest and eastern Massachusetts and possibly Down East Maine (Fig. 1).
Fig. 1: The midday GFS OP 120-hour snowfall forecast for the Northeast valid through 7AM next Wednesday.