Snow, Brutal Cold for Salt Lake City, Flagstaff, Denver
A snowstorm is dropping travel-disrupting snow across the Rockies, including in some major cities. A brutally cold air mass is plunging southward from Canada behind this storm.
A powerful storm storm system that originated from the Pacific is moving across the Rockies, dumping the heaviest snow on its back edge. It will emerge into the Plains by early Monday morning, spreading treacherous snow and ice with it.
Snow will fall from Montana to northern Arizona through tonight with the heaviest amounts expected in the Wasatch Range of Utah, the Colorado Rockies and the mountains in southern Wyoming. Around half a foot of snow will thump over these areas with locally higher amounts in the highest elevations.
Salt Lake City and Flagstaff are already getting blasted by snow that has been reducing the visibility to as low as a quarter of a mile. With temperatures in the 20s on Sunday in both of these cities and even colder temperatures in the higher elevations, it has been a very powdery snow.
A golden retriever named Ava watches his owner Kass Jones of Crested Butte, Colo., as he throws snow from a shovel over her head on Wednesday, Nov. 24, 2010, from a fierce snowstorm with high-intensity winds and snow that left Colorado with substantial amounts in the southern portions of the state. (AP Photo/Nathan Bilow)
Salt Lake City is expected to get covered by a fresh 4-8 inches through tonight, while Flagstaff will be buried by 2-4 inches of snow.
The snow will arrive in Denver tonight into Monday morning, and a coating to an inch or two will be dropped in the Mile High City.
Meanwhile, temperatures will plummet even more tonight, dropping into the single digits across the northern Rockies and the teens through the central and southern Rockies. Locally strong winds developing behind the storm will make AccuWeather.com RealFeel® temperatures even colder than actual temperatures.
Travel will be extremely dangerous through Monday morning across portions of I-15, I-25, I-40, I-70, I-80, I-90, and I-94 with leftover snow and the bitterly cold air spilling southward. These major roads and especially secondary roads of the region will be icy and snow-packed, while snow will dangerously reduce the visibility.
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Daily U.S. Extremes
past 24 hours
| Extreme | Location | |
|---|---|---|
| High | 107° | Death Valley, CA |
| Low | 28° | Daniel, WY |
| Precip | 2.39" | Alexandria, MN |
WeatherWhys®
People need to pay close attention to the UV index during this time of year. On a sunny day late in the spring and into the summer, the UV is usually at least an 8, which is very high. Readings over 11 are considered extreme values in which only 10 minutes of full exposure to the sun will produce a sunburn.
This Day In Weather History
New Hampshire (1814)
A tornado crossed Merrimac, Litchfield, Londonderry and North Chester. The same storm produced hailstones that had an 11-inch circumference and weighed 1/2 pound.
Northeast (1989)
More rain in an already wet month. Monthly totals topped 11 inches at New York City, 9 inches at Bridgeport, Conn., and 8 inches at Baltimore (all three totals set records for May).
Rough Weather
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