A Winter Weather Advisory is in effect from Noon until 9PM today for most of the Chicago area. The Winter Storm Watch for northeast Illinois has been canceled.
A powerful Winter storm continues to churn through the southern Plains early this morning. This storm will impact the Chicago area on Tuesday afternoon and evening with a wintry mix to start, changing over to bursts of heavy snow by late in the day.
Here is the very latest on what you can expect from today’s storm:
- Precipitation is expected to start between 9AM and 1PM. The morning rush hour will not be impacted, but the same cannot be said for the afternoon rush when bursts of heavy snow will be possible.
-Due to a warm layer aloft, the precipitation will begin as a mixture of snow, sleet and rain, changing over to all snow by late afternoon.
-North of I-80, total snow accumulation between three and six inches is expected by 6AM Wednesday morning. Isolated or locally heavier totals of six inches or more are possible if the switch from rain to snow occurs sooner than expected, or if lake enhanced snow materializes.
-South of I-80, including much of northwest Indiana, snowfall accumulation of less than three inches is very possible due to an extended period of rain or a rain /snow / sleet mix.
-The heaviest snow is expected to fall between 3PM and 8PM.
-While the total storm accumulation is not overly impressive, it’s important to note that a two to three hour period of heavy snow coinciding with the evening rush could turn this into a high impact event for Chicago commuters.
BELOW: Wind gusts in excess of 40mph are likely today as the storm, expected to be centered in southeast Missouri shortly after 11AM, begins to make it’s move on Chicago.