Update: Monday night - Tuesday morning snowfall
The snow that fell overnight left a coating to an inch in most of the forecast area, but slammed areas much farther north (Scranton, the Poconos, and north Jersey) with more than six inches.
Tonight, however, it looks as though we stand to get some accumulation. The details...
Monday afternoon and early evening will feature scattered rain showers with perhaps a bit of sleet mixed in. This will pose no serious problems.
Check out that huge swath of moisture currently moving through Indiana and Illinois. That's what figures to give us steady snowfall between about 9pm Monday night and 5am Tuesday morning...Expect accumulating snow to develop by 7 or 8pm tonight. The temperature will be falling through the 20s throughout the overnight hours, so all precipitation will be snow. Snow tapers by 5 or 6am and ends altogether by about 8am.
Accumulations are going to vary widely, and potentially present quite a reversal from the normal snowfall scenario.
Philadelphia and the southeastern counties (Delaware, Lancaster, York, Chester) will receive 3-5 inches.
Berks, Bucks, Montgomery, and much of south Jersey will receive 2-4 inches.
(I believe that Berks County in particular will be in the edge of the heavier snow bands; areas in Northern Berks may get only a couple of inches, while southern Berks gets 4 or 5.)
Mercifully, the areas that got bludgeoned last night and this morning (mentioned at the very top of this entry) will see just snow showers and flurries from this system.
School scheduling disruption percentages are for Berks and northern Lancaster Counties only.
Probability of at least a delay on Tuesday, 75%
Probability of cancellation Tuesday, 55%
Stay tuned for updates and tweakage as more information comes in to the ... what should I call it? Send your suggestions about what I should call my weather command center to me by clicking on my sign-off below...