Cold air gets colder, weekend storm a glancing blow

There are still two big stories in New Jersey’s weather world: Cold and snow. Believe it or not, the frigid air is set to intensify slightly over the next three days, as thermometers struggle to make it past 20 degrees during the day. Thursday will be bright and sunny, with highs only around 20 degrees and a wind chill stuck at 10 degrees. Lows Thursday will be close to 0, with a wind chill…