Bolaris update: Tonight's storm heading inland
I do have some better news about the storm coming tonight. From the city and all points south and east, southern New Jersey and Delaware, there's no concern about freezing rain or any significant snow.
This storm system is taking a more inland track with late secondary development allowing for ocean warming to take place and take away the threat of building ice and prolonged freezing rain, if any, all up and down the I-95 corridor, including Washington, D.C., and New York City.
The city will be dealing with a minimal coating of snow and some sleet before a quick changeover to all rain - well before your morning rush.
One big exception will be our northern and western suburbs, mainly north of the Blue Route and north of the Pennsylvania Turnpike.
From Quakertown on a line to Pottstown and all areas north will get about 2-4 inches of snow before a changeover to freezing rain, which could leave a quarter-to-half-inch of ice build-up across extreme northern Bucks and into the Lehigh Valley, where Route 78 cutting across Allentown stands the best chance of a half-inch of ice.
This would lead to extreme travel problems and possible power outages with the weight of the snow and ice likely snapping some power lines and trees.
Breakdown and timing of storm
City: Wet snow and sleet arrives toward midnight, which will change to all rain (perhaps briefly as some freezing rain) before the morning rush and its wet roadways.
Southern New Jersey: Wet flakes and some sleet arrive late tonight or around midnight. Will change to all rain well before the morning rush. A little sleet will be mixed in at start.
Delaware: Some wet flakes, sleet arrive late tonight, then changes to all rain overnight, well before the AM rush hour.
Eastern Chester, eastern Montgomery, and lower Bucks counties: Snow will arrive toward midnight, mix with sleet and change to freezing rain. Freezing rain possible for the first half of your commute before a change to plain rain.
Western Chester, western Montgomery and most of northern Bucks counties: Snow arrives around midnight or shortly after, mixing with sleet at times at changes to freezing rain during the morning commute.
Lehigh Valley: Snow arrives by 2 a.m., mixing with sleet toward daybreak and then freezing rain throughout the morning. Major icing problems. Precipitation trails off by noon as freezing drizzle.
Snow and ice totals
City: Slushy coating and MINIMAL ICE.
NE Philly: one inch of snow and MINIMAL ICE.
Eastern Chester, Delaware, eastern Montgomery, and lower Bucks counties: 1-2 inches of snow with light icing.
Northern Chester County: 1-3 inches of snow and a quarter-inch of ice possible.
Northern Bucks County: 3-4 inches of snow. Quarter-to-half-inch of ice.
Northern Montgomery County: 2-3 inches of snow, with a quarter-inch of ice.
Lehigh Valley: 3-5 inches of snow with a significant half-inch of ice. The biggest impact in the region will be here.
Poconos: 6 inches of snow, then a quarter-to-half inch of ice. Might end briefly as drizzle or freezing drizzle.
All precipitation moves out after 2 p.m.