The Chicago area is expected to see the season’s first sticking snow on Tuesday.
A Winter Weather Advisory has been issued for the Chicago area starting at 6 a.m. Tuesday and running through 6 a.m. Wednesday.
McHenry, Lake, DuPage and Cook counties are all included.
Snow with slushy accumulations on roadways are expected. Accumulations of 2 inches to 5 inches are possible.
Tom Skilling says the snow should begin around 5 a.m. to 7 a.m. but will likely transition to a wintry mix and rain for the remainder of Tuesday.
Nighttime cooling Tuesday night could return precipitation to more snow than a mix. Northwest suburban areas stand the best chance of seeing more snow than rain during the day. And patchy accumulations can be expected in other part of the metro area including the southern suburbs. These accumulations aren’t likely to be huge, probably a covering on colder outdoor surfaces to perhaps an inch or two mainly west and northwest of the city Tuesday.
Sticking snow Tuesday in the city would be the first of the 2022-23 season.
A second disturbance rides into the Chicago area Wednesday which keeps clouds and some sporadic precipitation going then.
For the latest weather updates, check out the WGN Weather blog.
The portion of the Chicago area which may receive the greatest proportion of this system’s precipitation as snow is likely to be areas away from the lake–particularly northwest and north of the city. Current model probabilities put the chance for an inch or more of snow at 80% in sections of McHenry, Boone and Winnebago counties–and of 2″ there at 50 to 70%–while the chance for 1″ of snow drops off to 10 to 20% along Chicago’s lakefront and through southern suburbs and 2″ snowfall probabilities are put at 5% or less.