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Home Return to list Frost Advisory 0006 Issued by the Duluth Forecast Office
Action: New Issued At: 2026-05-21 11:06:22 840 WWUS73 KDLH 211606 NPWDLH URGENT - WEATHER MESSAGE National Weather Service Duluth MN 1106 AM CDT Thu May 21 2026 MNZ012-019>021-037-WIZ001-221200- /O.NEW.KDLH.FR.Y.0006.260522T0500Z-260522T1200Z/ Northern Cook and Lake-Central St. Louis-Southern Lake-Southern Cook-Carlton and South St. Louis-Douglas- Including the cities of Silver Bay, Hibbing, Two Harbors, Superior, Duluth, Grand Marais, and Isabella 1106 AM CDT Thu May 21 2026 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... * 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, Douglas County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band and the Grand Portage Reservation. This also includes the Boundary Waters eastern and central area. * WHEN...From midnight tonight to 7 AM CDT Friday. * 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. && $$ For more information on Northland weather, visit www.weather. gov/duluth Wolfe Action: Continued Issued At: 2026-05-22 00:36:20 750 WWUS73 KDLH 220536 NPWDLH URGENT - WEATHER MESSAGE National Weather Service Duluth MN 1236 AM CDT Fri May 22 2026 MNZ012-019>021-037-WIZ001-221200- /O.CON.KDLH.FR.Y.0006.000000T0000Z-260522T1200Z/ Northern Cook and Lake-Central St. Louis-Southern Lake-Southern Cook-Carlton and South St. Louis-Douglas- Including the cities of Isabella, Two Harbors, Hibbing, Grand Marais, Duluth, Silver Bay, and Superior 1236 AM CDT Fri May 22 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Minnesota, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Fond du Lac Band, the Grand Portage Reservation and the Bois Forte Band, Lake Vermilion area. This also includes the Boundary Waters eastern and central area. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information on Northland weather, visit www.weather. gov/duluth Rothstein Action: Expired Issued At: 2026-05-22 07:18:11 950 WWUS73 KDLH 221217 NPWDLH URGENT - WEATHER MESSAGE National Weather Service Duluth MN 717 AM CDT Fri May 22 2026 MNZ012-019>021-037-WIZ001-221330- /O.EXP.KDLH.FR.Y.0006.000000T0000Z-260522T1200Z/ Northern Cook and Lake-Central St. Louis-Southern Lake-Southern Cook-Carlton and South St. Louis-Douglas- Including the cities of Two Harbors, Superior, Silver Bay, Isabella, Grand Marais, Hibbing, and Duluth 717 AM CDT Fri May 22 2026 ...FROST ADVISORY HAS EXPIRED... Temperatures have warmed and frost is no longer expected. $$ For more information on Northland weather, visit www.weather. gov/duluth Wolfe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||