(11:30PM – Tuesday, February 4th, 2025) Tuesday night update on a storm system that will through the region, bringing precipitation that will traverse a large portion of the state from early Wednesday morning through early Thursday morning. A wintry mix of precipitation will affect Northern and Central Illinois during this time, bringing minor accumulations of wintry precipitation types to these areas.
Timing…
•Early Wednesday morning – Early Thursday morning, February 5-6th.
Location…
•Northern & Central Illinois.
Impacts…
•Freezing rain/ice accumulation will range from a glaze across much of Northern and Central Illinois, with locally higher amounts possible.
•Snow/sleet/ice pellet accumulation will range from a trace to a dusting across Northern Illinois.
•Very isolated t’storms will be possible, making for the chance of thunder-freezing rain/sleet/ice pellets/snow.
•Minor ice/snow/sleet/ice pellet accumulation will lead to travel issues in some areas.
Update…
•With this update, the going forecast is on track, with little to no changes needed.
Discussion…
•As a storm system moves through the region, precipitation will spread across the state from early Wednesday morning through early Thursday morning.
•Across Northern Illinois, precipitation will begin as a mix of snow/sleet/ice pellets/freezing rain Wednesday afternoon and evening, before transitioning to freezing rain with time for Wednesday night, and then ending early Thursday morning.
•Across Central Illinois, precipitation will begin as a period of freezing rain during the Wednesday morning/midday timeframe, before transitioning to rain.
•Across Southern Illinois, rain showers can be expected from Wednesday morning through Wednesday evening. No wintry precipitation is expected.
