Update...

As of 6pm, the precipitation has filled in throughout most of southeast Michigan with a mix of rain, sleet, freezing rain, and snow.  The radar image below shows the current situation.

 Image courtesy of TWC

We can expect the area of sleet and freezing rain to fill in more as the night progresses.  The locations in southeast Michigan that have the best chance to see significant freezing rain accumulations include Macomb, Oakland, and Livingston, St. Clair, and Lapeer counties.  There is the potential for accumulations between 0.25 - 0.50 of an inch of ice in this area.  As mentioned earlier, the further south you go, the better the chances are for rain, and the chances are better for snow the further you go north.

Also, the precipitation totals could be lowered a great deal closer to the Ohio border as the dry slot moves into parts of southeast Michigan.  It is unclear how far north the dry slot will make it into Michigan.   

Another minor adjustment is that the winter storm warning is in effect between 8pm tonight until 2pm tomorrow afternoon.  If the freezing rain becomes heavy and lasts for an extended period of time then the National Weather Service may issue an ice storm warning for parts of the area.


Check out the links below for more information:

http://www.crh.noaa.gov/dtx/?n=multimediabriefing
http://www.crh.noaa.gov/dtx/