Tonight’s NAM has the freezing rain/sleet starting a bit later, into the evening, closer to 6 pm Monday for PHL, earlier to our west.
Still a borderline rain/sleet changing to snow event with very little, if any, accumulation. Icy conditions is the main issue.
Monday 4 PM: The precipitation started earlier than I had forecast last night. Fallling as freezing rain with difficult driving conditions.