Sun-Mon Snowstorm (Nov 10-11th) Update #6

(9:45AM - 11/10/19) A snowstorm will bring widespread accumulating snow to much of the state, this evening through Monday evening.

As was mentioned in the last update, model guidance had finally come to an overall agreement through the day yesterday regarding this event. Overnight this agreement has continued, with a trend towards a somewhat snowier scenario looking fairly likely now. We have slightly bumped up snowfall totals once again for some areas.

An area of snow is expected to spread across Northern Illinois this evening. This area of snow will continue across Northern Illinois into early Monday afternoon. Snow will also spread across portions of Central Illinois, early Monday morning through Monday afternoon. Across Southern Illinois, rain will turn to snow late Monday morning or early Monday afternoon, then continuing through Monday evening. At this point it looks likely that much of the state will see snowfall accumulations upwards of 1-3". A heavier swath of accumulations of 3-6” will be likely across much of Northern Illinois, with locally higher amounts possible. Additionally, lake effect and lake enhancement will be possible for areas of Northeast Illinois near Lake Michigan.

Following the snow event, record cold temperatures continue to look likely across the state, for early in the week. A snow cover for many areas will only help ensure that the cold temps will be likely.

Stay tuned for additional future updates on the snow event and likely record cold. Below is the TAM snowfall forecast for this event.

JP

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