A Big Temperature Swing Tonight And Lake Effect Snow Tomorrow

Posted at 9:17 AM, Dec 23, 2020

LANSING, Mich. — Good Wednesday morning! A strong low pressure system will begin impacting the area today, bringing big changes to our weather for the second half of the week. We’ll go from temperatures near 50 degrees today, to wind chills only in the teens by daybreak tomorrow.

Our Wednesday will start with a little sunshine before the clouds thicken up this afternoon ahead of tonight’s cold front. Southerly winds will ramp up today with gusts near 35 mph possible this afternoon. This strong southerly flow will result in a big warm-up for today, although it will be a very short lived warm-up. Plan for highs near 50 degrees this afternoon and rain showers will hold off until after sunset. We may see the rain showers changing to snow as the precipitation pulls away from the region tonight, but the bigger weather story will be the drastic drop in temperatures following the passage of the arctic cold front. We’ll drop into the 20s by daybreak Thursday with wind chills only in the teens.

With cold air pouring into the area tomorrow and a west-northwesterly wind flow, we’ll see lake effect snow developing on Thursday. Locations near the Lake Michigan lakeshore will see the higher impacts and snow totals, but we will see some snow bands reaching into Mid-Michigan as well. These snow squalls can result in quickly changing road conditions, so be aware that you could run into reduced visibilities and snow-covered roads if you’re traveling on Thursday. Temperatures will be in the 20s all day on Thursday with wind chills in the teens. The bitter cold air will stick around into Friday for Christmas Day. Christmas morning will start off with wind chills near zero and highs will only climb into the lower 20s in the afternoon. Lake effect snow will remain possible into Friday.

Things will quiet down a bit as we go into the weekend. Saturday turns partly cloudy and highs will return to near-normal values in the lower 30s. We could see another light snow event Sunday night into Monday.
-Meteorologist Caleb Meute

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