* WHAT...Wintry mix and some freezing rain expected. Total ice accumulations from a light glaze up to a tenth of an inch.

* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, and McHenry Counties.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...As temperatures rise above freezing late this afternoon and early this evening precipitation will change to all rain. Some icy spots may linger on untreated road and sidewalks for a time even after air temperatures rise above freezing. This is due to the initially very cold pavement temperatures being slower to rise above freezing than the air temperatures.