Active Weather Alerts
Frost Advisory
Issued: 2:36 AM May. 21, 2026 – National Weather Service
...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Minnesota, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Douglas, Iron, and Sawyer Counties. This includes the Tribal Lands of the northwestern area of the Lac du Flambeau Band, the Fond du Lac Band, the Bad River Reservation, the Bois Forte Band, Lake Vermilion area, the Red Cliff Band, the Lac Courte Oreilles Reservation and the Grand Portage Reservation. Other locations including Madeline Island and the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. &&
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