A modest snowfall over the northern Rockies will turn into a raging snowstorm and even a blizzard for part of the central High Plains to the eastern slopes of the Colorado Rockies to end the week.
Heavy snow will soon fall with strong winds causing low visibility, large snowdrifts and poor travel from eastern Colorado to southwestern and central Nebraska to northwestern Kansas.
Colorado Springs, Denver and Pueblo in Colorado, Grand Island, McCook and North Platte in Nebraska and Goodland in Kansas will be in the heart of the storm with a foot of snow possible.
Travel along long stretches of I-25, I-70, I-76 and I-80 in the region will become slow to difficult spanning Thursday night into Friday night.
A larger version of this map is available on the AccuWeather.com Winter Weather Center.
At the height of the storm, it is possible roads and highways will close for a time, while timeliness of departing flights at Denver International Airport will be challenged due to drifting snow and whiteout conditions.
As the storm moves along the Rockies from north to south, a few inches of fresh powder will go along with it from the Bitterroots to the Tetons, Wasatch and Colorado Rockies through Thursday.
The storm will reorganize and strengthen over the South Central states Thursday night into Friday night raising strong winds, pushing temperatures downward and causing rain to change to snow in the east over a portion of the central Plains.
As the storm begins to roll slowly eastward during the first part of this weekend, snow or rain changing to snow will expand over much of eastern Nebraska and into northern Iowa and southeastern South Dakota. Cities in this area that have a shot at several inches of snow include Omaha, Neb., Sioux City, Iowa, and Sioux Falls, S.D.
It is possible the heavy band of snow will continue to expand eastward with the storm, rather than fizzle out. Folks living in and travel interests from central and southern Iowa to northern Illinois and southern Wisconsin will want to monitor the storm's progress this weekend, even though the storm is likely to mature before reaching that far east.
A storm of this size, with energy and moisture available, has the potential to deliver the heaviest snow of the winter, especially in light of how the season has evolved.
The storm system will bring not only drenching rain to portions of the South Central states, but also severe thunderstorms, especially in parts of Texas and Oklahoma.
The upcoming general snowstorm and local blizzard just goes to show how quickly the weather can change over the Plains. During Monday and Tuesday, temperatures soared into the 60s over much of the region.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across more than half of the United States.
The best threat for severe weather late Saturday will be near the Red River Valley to Southeast Texas.
Rounds of heavy rain and strong thunderstorms will continue the threat of major flooding in the southern Plains through Memorial Day.
Memorial Day marks the unofficial start to summer and it will definitely feel like it for the holiday and the following few days across the Northeast. However, that does not mean an end to shots of cooler air.
Beachgoers heading to the Southeast coast this Memorial Day holiday weekend are being put on alert for dangerous rip currents.
Warmth will make a comeback around the Boston area for the remainder of this Memorial Day holiday weekend, seemingly fitting for the unofficial start to summer.
Knoxville, TN (1807)
Hail 10" in circumference hail; a tornado went over the river, sucking fish out of the water.
Inland snowstorm from New Jersey to New England; 4" of snow at Berkshire County, MA.
Snowstorm across state; daytime accumulation of 4-6".