Winter Weather Advisory Late Tonight Into Saturday

Posted: December 13, 2024 at 6:07 am

WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY…

.A storm system moves through the area late tonight through much of Saturday. Initial impacts expected to reach counties in Northeast Iowa early in the overnight hours, move into southeast Minnesota shortly thereafter, followed by far southwest Wisconsin. As the initial mix of snow, sleet, and freezing rain shifts northeast through the early morning hours, the probability for freezing rain increases. Current confidence suggests freezing rain onset near 3AM lasting into the afternoon. Hourly ice accumulations above 0.02″ expected at the height through most of the morning hours.

Above freezing temperatures slowly build from south to north through the afternoon and early evening, decreasing overall freezing concerns. Highest overall ice accumulations near 0.2″ are expected in northeast Iowa and 0.05″-0.15″ possible elsewhere from far southwest Wisconsin through southeast Minnesota.

Freezing precipitation can quickly cause hazardous road conditions. Higher ice amounts can also result in fallen trees and power lines resulting in power outages.

The counties included in the Advisory are Howard-Winneshiek-Allamakee-Chickasaw-Fayette- Clayton-Dodge-Fillmore-Houston- Crawford-Grant.