Tonight’s NAM data shows a QPF of 0.12 inches water. The GFS data comes out within the hour.
I’ll stay with about 1 inch of snow, possibly a bit more, starting about daybreak and ending about 1 pm Saturday. Cloudy for the remainder of the afternoon, clearing about sunset. High 26.
Sunday will be partly sunny with some cloudiness midday, high 20.
Tonight’s GFS QPF is 0.07 inches water.
This morning’s models still show the upper air clipper low moving through our area Saturday morning. The GFS has the system weakening as it approaches Philadelphia, with a QPF that is now about 0.06 inches water. The NAM doesn’t weaken the system and maintains a QPF of about 0.11 inches water.
The light snow starts about daybreak and ends about noon. Depending upon your model of choice and the expected high snow-water ratio of 15:1 or 20:1, we could get about 1-2 inches, but a mere coating is also possible.
I’ll update with tonight’s models. The early NAM data becomes available as early as 9:15 PM
Fri 5 PM: This afternoon’s models have the very light snow starting a bit later and ending early afternoon. The trend has been towards less QPF. The experimental NBM (National Blend of Models) has a QPF of 0.06 for our area, or about about a coating to 1 inch of snow.