After several days of Springlike weather Wyoming will see a rapid change to winter weather conditions as a small, but intense storm system will move into southwestern Wyoming tonight and will be moving through the rest of Wyoming on Friday. Winter storm watches have been posted for many areas of central and southcentral Wyoming, including Casper, Riverton, Rawlins, Saratoga and some mountain locations. Heavy snow, possible thunderstorms and gusty winds can be expected, especially in the southwest, southcentral and central areas of the state. Travel will be difficult in many areas of Wyoming on Friday along with hazardous livestock weather conditions.