If you missed the noon show, I mentioned that the latest computer model runs had made a big change from before and are now holding off the big movement of cold air until the end of next week. I’m not buying into it yet, but if it does occur… light, wet s-n-o-w (I don’t want to say it yet) is possible somewhere in the Midwest in a week’s time.
The GFS computer model suggests the possibility of what could be light lake-effect snow on the southern end of Lake Michigan. Temperatures aloft could support it… but how cold will we be at the surface? Average highs a week from now would be in the upper 60s. Even upper 40s would be 20 degrees below average… and that big of a difference from what’s typical is fairly extreme. Not unheard of, though.
Eric will be taking a good look at this change in the forecast this afternoon, and I’ll be watching it closely this weekend. After about two weeks of quiet, warm weather… anything cooler than normal will feel especially chilly.
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This post was written by qni_it on September 26, 2008