DENVER (AP) -- A powerful spring storm is expected to bring rain followed by snow and cold temperatures to Colorado and Wyoming on Mother's Day.
The National Weather Service issued a winter storm warning for most of northern Colorado and parts of southern Wyoming for Sunday.
Up to 15 inches of snow could fall at higher elevations in Colorado. Forecasters say 4 to 9 inches could fall at lower elevations, including Denver and other cities along Colorado's Front Range.
The Weather Service warns the snow could be heavy and wet enough to snap tree limbs and power lines.
Winds gusting up to 30 mph could reduce visibility, and slushy roads could be treacherous to drive.
Cheyenne and Laramie, Wyoming, could get 3 to 5 inches of snow, with higher amounts in the mountains and foothills.
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