Tue-Thur, Dec 15-17th Light Snow & Lake Effect Snow Event Update #2

(9:45PM - 12/15/20) A developing storm system, which will eventually become a major snowstorm for the Northeast, will first bring period of snow and minor accumulation to portions of Central and Southern Illinois...tonight through Wednesday afternoon. Additionally, periods of lake effect snow are expected across Northeast Illinois, early Wednesday morning through Thursday morning.

​Forecast...
An area of snow has started to develop and spread portions of Southern and Central Illinois early tonight. This activity will continue to expand and spread across more of Southern and Central Illinois, continuing overnight and through Wednesday morning, before ending from Wednesday afternoon. Minor snowfall accumulation is expected, generally ranging from a dusting to 1.5" across portions of Central and Southern Illinois.

Periods of lake effect snow are also expected across Northeast Illinois, early Wednesday morning through Thursday morning. Minor snowfall accumulation is expected, ranging from a dusting to 1.5".

​Below is the snowfall forecast for this event.

JP