The Washington, D.C., region is under a Winter Storm Watch ahead of a Jan. 16 storm expected to bring snow, sleet and rain to the area. Here’s what you need to know about road conditions and the impact on the Martin Luther King Jr. holiday. Read more: https://wapo.st/3rdLJ5i. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: https://twitter.com/washingtonpost Instagram: https://www.instagram.com/washingtonpost/ Facebook: https://www.facebook.com/washingtonpost/