A cold front will deposit an inch or so of snow across the Chicago area later tonight, then a more extensive low pressure system is forecast to move out of the southern plains – tracking up the Ohio River Valley through Kentucky Sunday.
If you are planning travel – especially to the south of Chicago – this weekend, stay tuned – there is significant potential for hazardous travel conditions the latter half of the weekend starting Saturday afternoon and Saturday night –continuing through Sunday into early Monday.
A Winter Storm Watch has been posted for central and southern Illinois and Indiana (see dark blue-shaded areas on National Watch/Warning map below) calling for heavy snowfall of 6 to10-inches from the Bloomington, IL area south, and a band of freezing rain/sleet and snow south of Interstate-70.
Between Bloomington and Chicago there will probably be a gradation of snowfall amounts, but several inches are possible here, especially south of Interstate-80. It’s early in the process and the storm system is still developing over the southern Rockies, so we’ll just have to “watch” for the time-being to get a better handle on the final storm track. For now it’s just a “heads up” for the Chicago area.