![]() What Are Blizzard Conditions?Īccording to NBC 5 Storm Team, a specific set of conditions must be met in order for a weather pattern to be considered a blizzard. Lake effect snow showers are also possible in parts of northwest Indiana, according to the NBC 5 Storm Team.ĭifficult and impossible travel conditions could linger, particularly in the morning hours Saturday, as blowing and drifting snow remains a concern. Minimum wind chills of -20 to -30 degrees are expected with highs in the single digits and low teens. Snow begins to lighten early Saturday morning, but hazardous travel conditions are slated to continue through the weekend as dangerous cold continues. Some locations could also see lower totals. #ILwx #INwx (5/5) /Ew0UXCT2e6- NWS Chicago December 21, 2022įorecasts are unclear as to how much snow may actually fall as snow but the snow is expected to begin subsiding overnight.Įarly predictions so far indicate the Chicago area could see between three and eight inches of snow, with higher totals possible, especially in northwest Indiana. Once the snow stops, dangerous cold will continue through the holiday weekend. Wind chills will drop to as low as 35 degrees below zero early Friday morning. In addition to falling and blowing snow, extreme cold will worsen the dangerous conditions Thu & Fri. This marks the time when it could could generate blizzard conditions and is expected to "severely" impact travel. The intense winter storm is expected to be widespread by the evening hours. "Wind chills of this magnitude can cause frostbite on exposed skin in as little as 20 minutes." "Dangerously cold wind chills as low as 25 to 35 below zero are likely Thursday night through Friday night," the NWS alert says. ![]() Icy roads could add to the hazardous conditions as temperatures rapidly fall. "Power outages will also be possible as a result of strong damaging wind gusts to 55 mph," it states. The alert warns that "falling and blowing snow may result in white-out conditions with zero visibility at times, making travel extremely difficult, if not impossible." Threat for flash freeze on Thursday! #ILwx #INwx (1/5) /rY1RznzSMv- NWS Chicago December 21, 2022 A powerful storm system will bring strong winds, falling and blowing & drifting snow, & extreme cold. Wed AM update! 1) Key messages on the dangerous winter weather Thursday into the holiday wknd. At that time, a winter storm watch for Lake, DuPage, Kankakee, Cook and Will counties in Illinois, and Lake, Porter, Newton and Jasper counties in northwest Indiana will go into effect. Things will "rapidly" worsen heading into Thursday afternoon, with snow growing more widespread and becoming stronger, the NWS says. While total accumulation of two to five inches of snow is possible, the potential for ice, river jams, and strong, blowing snow from strong winds is expected to make road conditions dangerous. ThursdayĪ winter weather watch alert originally set for Thursday evening is now set to go into effect in some areas of Chicago - McHenry, DeKalb, Kane, LaSalle, Kendall and Grundy - Thursday morning, according to the National Weather Service.Īccording to the alert, blizzard conditions are possible, and dangerous travel is likely, thanks to winds gusting as high as 55 miles-per-hour at times. Overnight however, snowflakes are expected to begin falling, and temperatures are expected to drop. Why Snow Totals in This Winter Storm May Not Actually Be How Much Snow You Get WednesdayĪccording to NBC 5 Storm Team, Wednesday will remain quiet and mainly dry, with moderate temperatures in the low 30s. 2.Īs timing of the storm continues to shift, here's what we know right now about the winter storm watch in Chicago's forecast. Wednesday and Thursday alone, the Illinois Tollway estimating that 1.7 million vehicles are expected to use the tollway system.Īnd according to the Chicago Department of Aviation, approximately 2.9 million air travelers are expected to pass through O'Hare and Midway International Airports between Dec. According to AAA, 113 million Americans - 5.8 million in Illinois - are expected to travel 50 miles or more between Dec. The storm comes amid one of the busiest travel times of the year. The National Weather Service is warning travelers and motorists - whether they're taking trip out of town or just down the road - that travel conditions during the height of the storm could be potentially " life-threatening." *Visibility near zero for at least part of Friday. *Wind gusts 45-55+ mph during/after the storm.
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