Wednesday, November 20, 2024

Northern Illinois could see it's first accumulating snowfall Thursday morning

Rain chances and gusty winds have taken up most of the weather headlines this week.Wednesday begins on a very similar note, with mostly cloudy skies and a few rain showers.

These showers will be rather quick to to move out, bringing no impacts to the morning commute. On the backside of this morning's showers, cloud cover breaks apart, allowing a few peeks of sunshine to occur into the afternoon. 

This should help our daily highs climb into the mid 40s. But just as quick as the sun makes an appearance, cloud cover will gather back up this afternoon as our next cold front enters the equation. Along with the cloud cover will be the chance for sprinkles as well as the first snowflakes of the season. This shouldn't amount to anything, though some flakes may collect on your vehicle prior to hitting the roads this evening.

Road conditions will become a more important matter during the first half of Thursday. A much stronger and deeper low pressure system will slide southward into the Great Lakes, increasing our chance for snow showers and strong winds. 

Forecast models have been consistent, placing the highest chance for accumulating slushy snow across eastern and southeastern Wisconsin as well as areas east of Interstate 39.


As of this morning, only Walworth County has been placed under a Winter Weather Advisory. Under the advisory, 1"-2" of slushy, wet snow could fall, with amounts up to 1" for areas like Janesville, Beloit, Rockford, and Rochelle.

Road temperatures will play a role, though most of what falls will accumulate on grassy surfaces. If anything, visibility will be the main concern for those traveling. Regardless, you're going to want to add a few extra minutes for your morning routine for travel. Snow showers chances look to continue into the mid to late morning hours, followed by a transition to a scattered mix of rain and snow once temperatures get warm enough. Highs tomorrow will be restricted to the low 40s.

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