(11:45PM – Sunday, February 9th, 2025) A disturbance moving through the region, combined with overrunning, will bring associated precipitation to portions of the state from Monday night through Tuesday evening. Mixed precipitation types will be likely across portions of the state during this period, with accumulations expected.
Timing…
•Monday night – Tuesday evening, February 10-11th.
Location…
•Northern & Central Illinois.
Impacts…
•Snow/sleet/ice pellet accumulation will range from a trace to a dusting across portions Northern Illinois, with a dusting to 1-3″ across Southern Illinois.
•Freezing rain/ice accumulation of a glaze will be likely.
•Snow/sleet/pellet/ice accumulation will lead to travel issues in some areas.
Discussion…
•As a disturbance moves through the region and overrunning occurs, precipitation will spread across the state from Monday night through Tuesday evening.
•Across Northern Illinois, snow showers will be possible from Monday night through Tuesday midday. With a weakening forcing and dry air in place, snow chances and accumulation will be on the minor side of things.
•Across Southern Illinois, a mix of precipitation types can be expected for the duration of this period. The main focus of this period will be Southern Illinois, where better forcing will occur, with an overlap from overrunning. This will lead to higher precipitation rates across this area, and expected wintry precipitation accumulations.
