#cowx   For today and tonight:  Rain and snow will develop in the mountains late this afternoon  and then change to all snow during the early evening as a colder  upper level disturbance arrives. A few thunderstorms are  possible, bringing a few periods of heavy snowfall. Snowfall  amounts of 3 to 8 inches is expected in the mountains. A few  locations could see up to a foot due to very heavy snow under the  thunderstorms and stronger snow showers. Roads will likely become  snow packed and icy in the mountains tonight.  Across the lower elevations, elevated fire danger will exist  through late afternoon as gusty winds combine with low humidities.  Isolated thunderstorms producing little rainfall will also be  possible over the eastern plains. Otherwise, scattered rain  showers will develop this evening and then mix with or change to  snow showers late tonight. A few spots on the plains could pick  up a quick inch of slushy snow.  For Thursday through Tuesday:  Anoth! er Pacific weather disturbance moving across Colorado late  Thursday afternoon through Thursday night will produce more  accumulating snowfall and winter driving conditions for the  Colorado high country. Another 3 to 8 inches of snow will be  likely in elevations above 9000 feet, with another 1 to 3 inches  in lower valley locations. East of the mountains, look for  scattered showers which may be in the form of snow early Thursday  morning and then again late Thursday night. Little if any  accumulation is expected on the plains.  Warmer and drier conditions return by Saturday into Sunday, but  another fast moving storm reaches the mountains later Sunday  bringing a return of windy conditions, cooler temperatures,  and a good chance of additional precipitation to the high  country. Another fast moving system may impact the state again  on Tuesday.  Spotter activation will not be needed today or tonight.   (Please visit http://weather.gov/bou for more information.)