More Heavy Snow Accumulates Over Dakotas, Colorado
UPDATED 6:30 PM MST, November 10, 2012
UPDATED By WeatherBug Meteorologist, Fred Allen
A powerful winter-like storm system will not only produce additional heavy snow for the Dakotas and Colorado Rockies right into Veterans Day, but is also triggering a few rounds of dangerous thunderstorms for those in the east-central Plains and Mississippi Valley this weekend.
The complex storm system reaches from the Dakotas all the way to the New Mexico and Arizona border. In concert with Arctic high pressure in central Canada, it is pulling dangerously cold air into the storm systems western flank between the western Dakotas and Colorado Rockies. At the same time, leftover Pacific moisture is being deposited as a belt of moderate to heavy snow this afternoon.
The narrow belt of intense snow will gradually exit the Colorado Rockies tonight, but will sweep across the Dakotas and northwestern Nebraska tonight. The heaviest snow will rapidly lift northward through North Dakota into Canada late on Sunday morning, with light snow wrapping around the low pressure center well into the afternoon and evening for the eastern Dakotas.
Winter Storm Warnings cover much of North Dakota, as well as along the western-half of the Colorado Rocky Front Range. Winter Weather Advisories stretch from northwestern Nebraska to northern Minnesota, as well as for the western-half of the Colorado Rocky Front Range.
Six to 12 inches of additional snow will accumulate along and north of the Interstate 94 corridor across North Dakota, with 4 to 8 inches falling south of the Interstate 94 corridor in South Dakota, as well as along the Interstate 29 corridor in eastern North Dakota. A few inches will blanket western Nebraska all the way down to Interstate 80.
For those across the western-half of the Colorado Rocky Front Range, snowfall accumulations will range between 3 and 6 inches through tonight.
Impressive snow tallies are being measured across the North Dakota already. The jackpot thus far has been Crosby, N.D., where 18.0 inches has fallen. Williston, N.D., has picked up 12.0 inches, while a bit of snow has even accumulated at Rapid City, S.D., officially checking in with 1.6 inches of snow so far.
Not to be left out, the strengthening storm system is also buffeting the same snowy locations with gusty winds. Even more, those winds will only strengthen tonight and Sunday, likely culminating in hazardous travel conditions and life-threatening wind chills if not properly prepared while outdoors. Gusts topping 30 to 40 mph will blow about the snow as it falls, producing near-blizzard conditions at times along large stretches of Interstates 94, 90 and 29 in the Dakotas.
The story will be a completely different one on its warm-side in the east-central Plains and far western reaches of the Upper Mississippi Valley later today and tonight. Unseasonably warm air flowing north from the Gulf of Mexico will battle the same Arctic air oozing out of Canada into the western High Plains, triggering the potential for severe thunderstorms
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