Tuesday, November 29, 2016
Sunshine Fades Away to Cloud Cover Wednesday
The incoming cloud cover will also come with a cooler air mass which will be one factor in helping to develop a few widely scattered showers by Wednesday afternoon and evening. But as colder air does get wrapped into Northern Illinois and Southern Wisconsin, it's possible that snow flurries or even light snow showers could also mix in.
I want you to think of this low like a wagon wheel. And the spokes around a wagon wheel are similar to smaller low pressure systems that rotate around the main parent low. As each low passes, it can produce its own weather. For us, these lows will help enhance cloud cover through the week but also generate lift in the atmosphere as the surrounding air is trying to fill in the lower pressure aloft.