to the National Weather Service, a combination of heavy rain,
freezing rain and snow continues to get ready to develop and move
toward portions of central Illinois.
The first wave of
precipitation will be associated with a cold front that reached
northwestern Illinois on Friday morning and will move southeast
across Illinois during the day. Some light rain or drizzle will
continue near the front, with light freezing rain becoming possible
later Friday night northwest of the Illinois River.
The main precipitation will develop early Saturday across the
south and expand northward into central Illinois on Saturday
afternoon ahead of an approaching low pressure center. The rain may
be mixed with freezing rain during the day Saturday northwest of
Interstate 55, with heavy rain farther southeast of Interstate 55.
The heaviest rains are expected south of Interstate 70, where a
total of 2 to 3 inches of rainfall will be possible by the end of
From Saturday night into Sunday, the low center will move across
southern Illinois and then pull to the northeast, dragging colder
air into Illinois. The result will be rain or freezing rain changing
to snow Saturday night and into Sunday. Icing amounts could reach
around a tenth of an inch northwest of the Illinois River. Snowfall
amounts will also be the heaviest northwest of the Illinois River,
with 2 to 4 inches possible.
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Details on this winter storm continue to evolve, and therefore
some of the more critical points remain uncertain. Stay alert for
later statements on this developing winter event.
[Text from National Weather
Service, Lincoln office]