Chicago’s is headed for is heaviest round of precip in the form of cold, wind-driven rain—in more than a month.
Modeling suggests rain overspread to city and close-in suburbs in the 7 to10pm Monday time and won’t wind down until 3 to 5pm Tuesday. That’s a 17 to 20 hour spell rainy period which may produce soaking rains of 0.60″ to 1.30″ range across the metro area. No snow’s expected here—but wet snowflakes may mix in—mainly north of the Wisconsin line before the incoming system exits later Tuesday.
Rain is needed here. November to date (i.e. Nov 1-19) has seen just 0.10″ of rain at O’Hare going into this system—-which is just 6% normal.
Rainfall in the predicted range would amount to the heaviest rain here since 1.48″ fell which last fell in Chicago over a 5-day period from this past Oct 11-15.
Gusty NE overnight and Tuesday morning winds …