At a Glance

Winter Storm Quinn will bring blizzard conditions to the northern Plains early week.Quinn will also spread snow and gusty winds across the upper Midwest and Great Lakes.By midweek, Quinn could develop into another Northeast coastal storm.

This is an old forecast and no longer being updated.

For the latest forecast details in the northern Plains and upper Midwest, please .

For the latest forecast details in the Northeast, please .

Winter Storm Quinn will march eastward across the country this week, producing blizzard conditions in the northern Plains, before spreading snow and wind through Upper Midwest and Great Lakes, and thenpotentially forming into another Northeast coastal storm.

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Quinn is being fueled by a potent southward dip in the jet stream that has been . That plunge of the jet stream will now march eastward across the rest of the country this week.

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Happening Now

Quinn is currently bringing snow from parts ofeastern Montana southwestward to Utah, including around the Salt Lake City metro area.

Lake-effect snow from the Great Salt Lake helped to enhance snowfall in parts of the Salt Lake City metro area Sunday morning. The airport received 2.5 inches in 3 hours, boosting the storm total to 5.1 inches.

Blizzard warnings havebeen posted by the National Weather Service in the northern Plains, including parts of southwest North Dakota, South Dakota and extreme northern Nebraska.

Winter storm warnings and winter weather advisories are also in effect across parts of the Rockies and into the northern Plains. A winter storm warning remains in effect for the metro areainto late Sunday.

Winter storm watches have been hoisted in the upper Midwest, including the metro area. Difficult travel conditions are expected there early this week.

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Timing

Sunday

Through Sunday night, snowor rain changing to snowwilldevelop from the Dakotas and northern Nebraska tonorthern/central Minnesota. Snow will also continue in the northern and central Rockies. Increasing winds will develop in the northern Plains, possibly contributing to blizzard conditions overnight Sunday.

Monday

Snow and strong winds will combine to produce blizzard conditions in portions of the Dakotas. Winds could gust 40 to 60 mph at times, leading to dangerous travel conditions and possible road closures. Areas from northern and central Minnesota to northern and central Wisconsin will also see snowfall from Quinn. The snow could be heavy at times, leading to difficult travel conditions, including in the Minneapolis/St. Paul metro. Gusty winds may contribute to areas of blowing snow and poor visibility in the upper Midwest as well.

Tuesday

On Tuesday, snow is expected to spread into the Great Lakes from the Dakotas, with some snow reaching intothe interior Northeast. The snow will be lighter in intensity overall on Tuesday, but could still contribute to travel delays. High winds may continue to fuel blizzard conditions in parts of the Dakotas for at least a part of Tuesday.

Wednesday-Thursday

Quinn could finish up its cross-country journey as a Northeast coastal storm. Details on the magnitude of impacts from Quinn in the Northeast are uncertain at this time and will depend on the eventual track of the coastal low in relation to the Eastern Seaboard. Accumulating snow and gusty winds arelikely in portions of the Northeast, but it's too early to determine the exact location of the rain/snow line in relation to the Interstate 95 corridor. Some additional minor to moderate coastal flooding could also occur. Check back with weather.com for updates in the days ahead.

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Snowfall Forecast and Impacts

Portions of the northern Plains and upper Midwest will see 6 to 12 inches of snow from Quinn. As mentioned earlier, winds gusting 40 to 60 mph will result in blizzardconditions in the northern Plains Monday-Tuesday. Travel should be avoided and road closures are likely in this region at times. Lighter amounts of snow, generally less than 6 inches, are expected in the Great Lakes. It's too early to determine snowfall amounts in the Northeast.

Winter Storm Archive

Winter Storm Quinn began as a slow-moving, but deep trough dropped southward from the Gulf of Alaska on Feb. 28 toward the Pacific Northwest. A cold front associated with Quinn swept through the West Coast from Washington to central California on Mar. 1 with a reinforcement of moisture and cold air.

Blizzard conditions and snow drifts up to four feet were reported near Kingvale, California, late Thursday, Mar. 1.

At the summit of Squaw Valley ski resort, winds gustedtoover 130mph was clockedThursday, with several gusts over 70 mph in parts of California and Nevada on Friday.

The warm side of Quinn has also brought locally heavy rain to California.

Dozens of collisions were reported on San Francisco Bay Area highways, according to the Associated Press, likely due to rainy and windy conditions.In the Bay area, many totals of 1-3 inches have been reported from Wednesday evening into Thursday afternoon while a few spots in Monterey and Santa Cruz counties, located south of the Bay, have seen more than 6 inches.

In southern California, a burst of locally heavy rain for parts of the Thomas Fire burn area Friday morning.

Multiple collisions and slide offs were reported near Spokane, Washington due to icy conditions during the early morning commute on Friday.

Carson Pass, on California State Highway 88, was closed in both directions on Friday due to snow. Chain controls are in effect in most passes through the Sierra.

Several semis were blown over in southwestern Wyoming due to high winds. At least one minor injury was reported, and that stretch of road has been restricted to light semis Friday morning into the afternoon.

Gusts across northern Utah and southern Wyoming ranged from 60 to 90 mph on Friday morning, including a gust to 74 mph in Salt Lake City.

Mammoth Mountain ski resort in California's Sierra Nevada had picked up ending Friday morning. At Mount Rosein Nevada, up to three feet of snow has been measured. Many ski resorts are rooting for the best snow of the season so far.

Additionally, on the warm side of Quinn, a mudslide closed the Pacific Coast Highway in both directions in Malibu, .

Here are selected snowfall totals through late Saturday:

California:72 inches at June Lake; 68 inches at Squaw Valley; 62 inches at Mammoth Mountain Idaho:40 inches at the Swede Peak Snotel near Hailey; 37.7 inches at the Galena Summit Snotel near Ketchum Montana:18.1 inches near Island Park; 7.7 inches near West Yellowstone Nevada:57 inches at Mount Rose; 11 inches at Owyhee; 10 inches near Reno Oregon:10 inches near Obrien; 8.5 inches in Selma; 7 inches near Mitchell;2.5 inches near Bend Utah: 5.3 inches near Almo Washington:26 inches in Malott; 19 inches in Concunully; 0.05 inches of ice near Millwood (near Spokane) Wyoming: 8.9 inches near Grassy Lake

Here are selected wind gust reports through late Saturday:

California: 146 mph near Alpine Meadows; 63 mph at the South Lake Tahoe Airport Idaho: 62 mph near Magic Mountain Nevada: 82 mph near Verdi; 79 mph at the Mount Rose Summit; 69 mph near Carson City Utah: 87 mph at Snowbasin near Ogden; 74 mph near Salt Lake City Wyoming: 62 mph near Arlington

MORE ON WEATHER.COM: Winter Storm Quinn in Photos

Fallen trees and a broken power pole block a road in Oakland, N.J., Thursday, March 8, 2018. (AP Photo/Seth Wenig)