A polar vortex will plunge Colorado into bitter, sub-zero cold this weekend and could bring up to 10 inches of snow in some parts of the Denver metro, National Weather Service meteorologists say. We’ve rounded up all of our arctic cold coverage below, from latest forecasts and shelter resources to closures and how to keep your pipes from freezing. This story will be updated throughout the weekend.  Denver weather forecast Plunging temps from polar vortex could cause icy metro Denver commute Friday night Denver forecast to see more than 100 straight hours of below-freezing temps Extreme cold shelters and resources Here’s where to find shelter during metro Denver’s arctic cold snap Help available for Coloradans struggling to pay heating bills ahead of cold snap Business, government or school closures Denver Botanic Gardens closing this weekend due to subzero temperatures Colorado ski forecast Ski forecast: Single-digit cold (and worse) ancitipated at Colorado resorts this weekend Colorado road conditions How to drive in snow and ice: A winter guide for newcomers, tourists and those who forgot More weather news Denver reschedules trash collection services amid extreme cold forecast Extreme cold preparations Here’s how to prevent (and thaw) frozen pipes as arctic cold blast hits Colorado