Update 8:45 a.m.
A strong winter storm will affect hit west central Minnesota today and tonight across the region into west central Wisconsin.
Blizzard conditions are expected to develop today across portions of west central and southwest Minnesota with 12 or more inches of snow, the National Weather Service in Chanhassen said.
A blizzard warning has been issued for portions of west central and southwest Minnesota today and continue through noon Monday. The blizzard warning is for areas west of a line from Alexandria to Willmar to New Ulm.
Winter storm warnings remain in effect for the rest of west central and southern Minnesota through noon Monday.
A large area of mixed snow, sleet and freezing rain will be moving toward south central Minnesota this morning, while snow gradually develops over central Minnesota later this morning and continues into the afternoon.
The mixed sleet, snow and freezing rain will also continue over south central Minnesota, leading to icy roads and sidewalk and possible ice accumulation on power lines and trees. The greatest risk of sleet and freezing rain will be south of a line from New Ulm to Faribault.
Northeast winds will be increasing in the 20 to 30 mph range over much of central Minnesota leading to blizzard conditions.
Heavy snow will continue into Sunday evening and then begin to taper off in the overnight hours and Monday morning. The mix of freezing rain, sleet and snow over south central Minnesota will change to all snow by tonight.
The heaviest snowfall accumulations will be in the 10 to 15 inch range, from around Montevideo in west central Minnesota through the Twin Cities to near Eau Claire, Wis.
South central Minnesota will see the least amount of snow in the 3 to 6 inch range. Areas north of a line from Morris to St. Cloud to Ladysmith, Wis., can expect 6 to 10 inches.
A strong low pressure area will be moving from northeast Colorado toward eastern Iowa by late tonight.
The extended forecast for the Willmar area is:
Today: Snow and areas of blowing snow. The snow could be heavy at times. High near 24. Blustery, with a east northeast wind between 21 and 25 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 8 to 12 inches possible.
Tonight: Snow and areas of blowing snow. Low around 12. Wind chill values between -5 and 4. Blustery, with a northeast wind between 18 and 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Washington's Birthday: A 40 percent chance of snow, mainly before noon. Cloudy, with a high near 19. Wind chill values between -5 and 5. North northeast wind between 9 and 17 mph, with gusts as high as 25 mph.
Monday Night: Mostly cloudy, with a low around -1. Wind chill values between -5 and -10. North northeast wind between 5 and 8 mph becoming calm.
Tuesday: Mostly sunny, with a high near 19. South southeast wind between 6 and 14 mph.
Tuesday Night: Mostly cloudy, with a low around 12.
Wednesday: A 20 percent chance of snow. Mostly cloudy, with a high near 30.
Wednesday Night: Mostly cloudy, with a low around 11.
Thursday: A slight chance of snow. Mostly cloudy, with a high near 17.
Thursday Night: Cloudy, with a low around 3.
Friday: A slight chance of snow. Cloudy, with a high near 11.