Winter Storm Warning – Thursday Evening to Friday
Heavy snow is expected to spread across northern Illinois early this evening, then continue into Friday. The heaviest snow is forecast to fall within a narrow band north of I-80 tonight, then shift southward to areas along and near I-80 Friday morning. Within this heavy snow band, snowfall rates of 1-2” are expected. Travel tonight into Friday will likely be very difficult to impossible at times. Avoid any unnecessary travel during this time. If travel is required, use extreme caution and ensure that you are carrying emergency supplies in case you become stranded.
Snow Start Times
The lack of snow over northern IL thus far this winter has been noteworthy, but that could be about to change. A parade of storm systems over the Pacific will ride the jet stream into the northern and eastern U.S. this weekend into next week. These systems will be fast on each other’s heels, with only about a 24 to 36 hour break in between systems. It is too soon to say how many of these systems will directly impact northern IL and northwest IN, but there does appear to be multiple opportunities for snow this weekend through next week.
Snow. The snow could be heavy at times. Temperature rising to around 24 by 5am. South wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.
Snow. The snow could be heavy at times. High near 29. North northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 6 inches possible.
A 50 percent chance of snow. Cloudy, with a low around 16. North wind 5 to 10 mph.
Snow likely, mainly before noon. Cloudy, with a high near 24. North wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Snow likely, mainly after midnight. Cloudy, with a low around 15. North wind around 5 mph. Chance of precipitation is 60%.
A 50 percent chance of snow before noon. Partly sunny, with a high near 25.
Mostly clear, with a low around 4.
Sunny, with a high near 26.
Partly cloudy, with a low around 17.
Partly sunny, with a high near 34.
Partly cloudy, with a low around 20.
Partly sunny, with a high near 35.
A chance of snow. Mostly cloudy, with a low around 24.
A chance of snow. Partly sunny, with a high near 32.