A winter storm is making landfall in the Midwest and parts of Illinois and northwestern Indiana with the potential for a thick or heavy layer of snow before the storm clears out of the area later this week.
Things will start to warm unusually in the Chicago area on Tuesday, with temperatures rising to lows into the mid-40s across the region around midday.
That’s when the weather system will arrive, bringing showers to the area in the early afternoon.
Those showers are expected to continue until air temperatures cause precipitation to shift from rain to snow, and from there, intense snow is expected to begin to fall Tuesday night and into the morning. Wednesday.
Kankakee County, along with Lake, Porter, LaPorte, Newton and Jasper counties in Indiana, will be under a winter storm warning around the time that the transition to snow occurs and Wednesday afternoon, possible areas of areas. where 6 to -12 inches of snow accumulation is visible.
The heaviest snowfall is likely to occur Wednesday morning, with a snowfall rate of 0.5 to 1 inch per hour during that time. According to forecasting models, that will likely cause severe travel problems throughout the region, and residents are advised to postpone non-essential travel.
Another system could closely follow the original system Wednesday and through Thursday, and if it does, another 3 to 6 inches of snow could fall in areas currently under a winter storm warning, possibly meaning that in all residents can see up to 18 cumulative inches in less than 48 hours.
For Chicago and surrounding suburbs, thicker snow accumulation from the storm is likely to remain south, but another threat could loom Wednesday afternoon, as lake-effect snow is possible. happen. If those bands of snow develop, it could combine with incoming weather systems to push up accumulation in the area and could lead to additional advice or warnings from the National Weather Service.
Snow is expected to melt away from the area Thursday night, and behind that storm system, colder air is expected to arrive, sending temperatures dropping into the 20s for the rest of the working week. work and on weekends.
https://www.nbcchicago.com/news/winter-storm-warning-rain-then-snow-expected-in-chicago-area-tuesday-as-system-arrives/2744959/ Rain, then snow expected in the Chicago Area Tuesday when the System arrives – NBC Chicago