Detroit was hinting thisi morning that temps are trending a little cooler than previously forecast:
A forecast trend from 24 hour ago has
been for a slight delay precipitation onset. It is quite possible
that snow will hold off until after the morning commute particularly
north of M 59 and/or I 69 corridors. The other change has been for a
slightly cooler atmosphere column by a degree or two Celsius. As a
result, there is lower confidence on when precipitation will
changeover to rain. Given the projected UVV response, more efficient
wet bulb cooling could delay the changeover to rain by an hour or
two. Thus, preference is to carry snow accumulations through noon for
many areas particularly in the higher elevation of the Irish Hills