Tonight’s NAM data just became available. Here’s a quick update.
A mixed precipitation event for Tuesday. Snow before daybreak ( 1-2 inches possible by daybreak), then changing to rain or rain mixed with snow in most of the Philadelphia area, then back to light snow before ending. Little or no final accumulation expected, except on grassy surfaces expected at this time.
Precip ends Tuesday night . Latest NAM has second storm on Wednesday hugging coast, instead of going out to sea. Some snow possible. This supports the statistical models from earlier today. Too early to give specifics about Wednesday. (It’s difficult to get accumulating snow in March during daytime hours. ).
It’s l daylight saving time— the GFS data won’t be available until after midnight for Wednesday’s forecast.