#cowx For today and tonight: Snow will gradually develop in the mountains this afternoon and become more widespread and heavier tonight. Gusty winds from 60 to 70 mph will cause whiteout conditions at times over the higher passes tonight. Snow accumulations by late tonight will range from 7 to 14 inches in the mountains with 4 to 7 inches in the higher valleys. At lower elevations high winds may develop this evening and continue overnight in the foothills especially over the wind prone areas of Boulder and Jefferson counties. Wind gusts to 80 mph will be possible at times. Areas of blowing snow will also be possible with poor visibilities at times. Over northeast Colorado it will be dry with warmer temperatures this afternoon. For Thursday through Tuesday: Snow, heavy at times is expected to continue over the mountains and high valleys on Thursday into Thursday night. Accumulations on Thursday and Thursday night will be significant, with 7 to 14 ! more inches of snow. West winds gusting up to 50 mph will cause blowing snow. Snow will continue in the mountains on Friday, with lighter intensities. Over the plains there is a chance of snow Thursday into Friday. There will be a slight chance of snow in the mountains Saturday then again on Monday. The airmass will stay cooler than normal for all the forecast area through next Tuesday. Spotter activation will not be needed today or tonight but snow reports will be appreciated. (Please visit http://weather.gov/bou for more information.)