Pennsylvania, New Jersey and Delaware are gearing up for significant snowfall from Sunday through Monday, with wind gusts up to 40 mph. Here’s everything you need to know.

“Our monitor caught it immediately,” said Palak Raval-Nelson, Philadelphia public health commissioner. This new Stinger Square Park sensor is part of a network of 76 air quality sensors throughout the ...

Here’s how the winter storm looked on the ground. Millions across the Northeast — including in the greater Philadelphia region — woke up Monday to a winter wonderland. Parts of New Jersey were hit ...