* WHAT...Significant icing expected through the early evening with a mix of sleet and freezing rain. Winds gusting to 30 mph. A period of freezing drizzle is likely tonight before precipitation changes to snow late night through Monday morning. Additional snow and sleet accumulations up to two inches and additional ice accumulations up to a quarter inch with locally higher amounts.

* WHERE...Portions of southern Illinois, western Kentucky, and southeast Missouri.

* WHEN...Until noon CST Monday.

* IMPACTS...Roads, and especially bridges and overpasses, will become slick and hazardous. Significant ice accumulation on power lines and tree limbs may cause widespread and long-lasting power outages. Power outages and tree damage are likely due to the ice. Travel could be nearly impossible.

* ADDITIONAL DETAILS...An arctic blast will arrive Monday and last through most of the week. Wind chill values will drop into the single digits or below zero at times, which can be even more dangerous with any long duration power outages.