National Weather Service Report
Issuing Office: Philadelphia
6:18am EST, Sat Dec 17
SNOW IS IN THE PROCESS OF TRANSITIONING TO SLEET AND FREEZING RAIN ACROSS SOUTHEAST PENNSYLVANIA, CENTRAL AND SOUTHERN NEW JERSEY, AND INTO THE DELMARVA. A GLAZE TO SEVERAL HUNDREDTHS OF AN INCH OF ICE IS EXPECTED THROUGH THIS MORNING. ROADS, ESPECIALLY UNTREATED ROADS, WILL BE SLICK AND ICY. MOTORISTS SHOULD EXERCISE CAUTION IF TRAVELING THIS MORNING. GIVE YOURSELF EXTRA TIME FOR YOUR JOURNEY, DRIVE SLOWLY, AND LEAVE PLENTY OF SPACE BETWEEN YOU AND THE CAR IN FRONT OF YOU.
Today – Freezing rain and sleet, possibly mixed with snow before 11am, then rain. Patchy fog after 2pm. High near 40. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. Total daytime ice accumulation of less than a 0.1 of an inch possible. Total daytime snow and sleet accumulation of less than a half inch possible.
Tonight – A chance of rain, mainly after 3am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 50 by 5am. South wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.