(9:30AM - 1/12/19) Saturday morning update regarding the ongoing major snowstorm affecting the state this weekend...
Areas of light to moderate snow, with pockets of heavy snow, have been ongoing across much of the state overnight and into this morning. The hardest hit area has been portions of West and Southwest Illinois, including the St. Louis metro area, where widespread snowfall totals of 8-12" have occurred. Outside of this area, snowfall totals have ranged from 2-6" across the rest of Central Illinois south of I-80, East-Central Illinois and Southern Illinois.
Widespread snow of varying intensity will be likely across the state into tonight, before becoming more scattered into tomorrow morning and eventually ending from north to south across Northern and Central during the day on Sunday, and Southern Illinois Sunday evening.
Additional snowfall accumulations of a couple to several inches is likely across much of Northern and Central Illinois by the time the snow ends on Sunday. Final storm snowfall totals of 6-12" will be widespread across much of Central and portions of Southern Illinois, with totals of 12-15"+ across portions of Southwest Illinois. Totals of 2-5" are likely across much of Northern Illinois, with lower totals possible near the Illinois/Wisconsin border. Totals across far Southern Illinois will be 2-6", most of which has already fallen. It should be noted some lake enhancement may occur across Northeast Illinois late this afternoon into Sunday, which may add a bit to totals near Lake Michigan.