We in the weather community have been talking about this cold snap for a while, and it is finally here. Tuesday promises to be a very chilly day — the coolest since mid-February — with highs struggling to reach 50° despite full sunshine. A persistent westerly wind will keep temperatures feeling even colder, too, with wind chills in the upper 20s expected in the morning. Make sure your loved ones, two and four-legged, have a warm place to be tonight (and for the next couple nights).