 This is a very fast-moving cold front. It's been going at 50 miles per hour, so most areas have been producing just gusty winds. Some areas, some reports of small hail, some tree damage, also in power lines down in some locations, affecting areas from Sheridan County, Wyoming, all the way up towards the Canadian border. They're also moving off into South Dakota with the potential of some more thunderstorms this evening. Things will quickly taper off as this system clears out of the region.