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Frost Advisory

Status

New Event Active alert

Start Time

Tue 09/22/2026 01:00 AM EDT

End Time

Tue 09/22/2026 09:00 AM EDT

Significance

Advisory

Impacts

Low impact

Locations Affected

Duluth, MN ∙ Ball Club, MN ∙ Palisade, MN ∙ Goodland, MN ∙ Webster, WI ∙ Hibbing Chisholm Hibbing Airport, MN ∙ Shell Lake, WI ∙ Leonidas, MN ∙ Bass Lake, WI ∙ Holyoke, MN

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Duluth MN 1259 PM CDT Mon Sep 21 2026 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Minnesota, Crow Wing, Northern Aitkin, Pine, South Aitkin, Koochiching, North Cass, North Itasca, South Itasca, Carlton and South St. Louis, Central St. Louis, North St. Louis, and Northern Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. * WHEN...From midnight tonight to 8 AM CDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Advisory is for inland areas away from Lake Superior. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.

Technical Header

MNZ010>012-018-019-025-026-034>038-WIZ001>004-006>009-220600- /O.NEW.KDLH.FR.Y.0010.260922T0500Z-260922T1300Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-North Cass-South Itasca-Crow Wing-Northern Aitkin-South Aitkin-Carlton and South St. Louis-Pine-Douglas- Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price- Including the cities of Aitkin, Hibbing, Grand Rapids, Washburn, Hill City, Hayward, Hinckley, Walker, Bayfield, Spooner, Pine City, Ely, Isabella, Phillips, Bigfork, Grantsburg, Ashland, Hurley, International Falls, Duluth, Brainerd, and Superior 1259 PM CDT Mon Sep 21 2026