Portland’s string of cold but sunny days is finally coming to an end. Starting early Thursday morning, a “mess of wintry precipitation” is probable — first falling as snow, then transitioning to a less fun mix of sleet and freezing rain. Icy roads will likely affect afternoon commutes, and slippery conditions could last through the weekend.

This will be the sixth storm system to impact New Jersey in less than two weeks. Another storm is on tap for this weekend, followed by a big blast of arctic air.

Northern California is bracing for another winter storm this week, which is set to bring heavy rain and snow and impact holiday travelers. Here's the timing and totals we're expecting.