LA CROSSE, Wis. -- A winter storm is bringing a period of freezing rain to northern Wisconsin and Michigan's Upper Peninsula that could lead to dangerously thick coatings of ice.
Ice Storm Warnings extend from the Minnesota-Wisconsin border, across northern Wisconsin and into Marquette in Michigan.
Freezing rain began Friday night near the Minnesota border and is spreading east into Michigan through Saturday afternoon.
"Significant" ice accretions are expected to reach 1/4 inch to as much as 1/2 inch in the warned areas, and traveling is highly discouraged along and north of I-94.
Ice will accrue on untreated surfaces, making travel hazardous to dangerous -- possibly impossible in some areas, forecasters warned. Power outages and tree damage are also possible.
Freezing rain will taper off from west to east through Saturday and focus across Wisconsin will shift into the southern third of the state where strong thunderstorms will likely form, with a heightened potential for severe weather along southwestern Wisconsin into Iota and southeastern Minnesota.