Update Wed @ 9:03 PM — I’m going to need to change the title of this posting tomorrow to “Storm Late Sunday into Monday”.

This afternoon’s (18z) GFS and GEFS models have become available.

The GFS and ICON continue with a western track and a significant influx of warm air a few hours into the event. Any light snow at the start changes to sleet and rain and with a change back to snow possible but most of the moisture has move northeastward. So little accumulation in the immediate PHL area, according to the GFS.

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