Temp profile still is questionable here in SE MI. Small differences in the strength and depth of the warm nose will mean the difference between sleet and freezing rain here. Plus the onshore easterly surface flow will keep areas east of the glacial ridge, including the immediate Detroit area, slightly warmer. Areas along and west of the glacial ridge certainly have a greater risk of more significant ice accretion. This is demonstrated well in the 12z HREF mean FRAM accretion, with <0.1" accretion in Detroit, 0.1" imby, and 0.2-0.3" along and west of the glacial ridge. A WWA was just issued by DTX, which at this point is a good call. That pivot band of snow on the backside of this storm looks to pass over here after hitting the Chicago area. Going for an imby call of 0.1" of ice accretion and a couple tenths of sleet for the Friday afternoon/evening period, followed by some rain, and then transitioning back to wintry precip with 1.5" of snow falling. The trailing vort on Sunday looks good for 1-3" of snow as well.