The National Weather Service has issued a winter storm warning for Chicago:
...WINTER STORM WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 AM CDT SUNDAY...
- WHAT...Rain transitioning to a heavy, very wet snow early in the afternoon and continuing into this evening. Total snow accumulations of 3 to 8 inches will be possible by this evening, with the highest amounts across northern portions of Kane, DuPage, and Cook counties. Snowfall rates of 1 to 2 inches per hour will be possible for several hours this afternoon into this evening. Accumulations of 1 inch or less are expected across portions of southern Cook County. Northeast winds will also gust as high as 35 mph late this afternoon and evening.
- WHERE...Kane, DuPage and Cook Counties.
- WHEN...From 1 PM this afternoon to 1 AM CDT Sunday. Heaviest snowfall rates 3 to 8 PM.
- ADDITIONAL DETAILS...Travel could be very difficult in heavy snowfall and gusty winds with greatly reduced visibilities. Minor tree damage will also be possible to due to the heavy snow and wind.
We still don't know how bad it will be, despite the warning:
Forecasters said they still were tracking the exact path of the storm Saturday morning, but the possibility of snow was most likely north of Interstate 88 — and areas most likely to be hit by more snow were expected to be on the Northwest Side, in northern Cook County suburbs and in Lake and McHenry counties.
Downtown and along the north lakefront, 50–75 mm of accumulation was predicted. The storm should end by midnight, the weather service said.
And yet, we've had worse. We had over 25 mm of snow on 1 May 1940, and measurable snowfall on 22 May 1917. And in Chicago, we won't have the up to 225 mm they'll get in parts of Wisconsin.