Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Duluth MN
332 PM CDT Wed May 20 2026

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-212045-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
332 PM CDT Wed May 20 2026

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...This afternoon and Tonight

Frost is expected for the Arrowhead towards the Twin Ports and
much of northwest Wisconsin tonight. Frost advisories are in
effect.

Localized minor flooding continues over portions of the Boundary
Waters.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Dry weather is expected through Friday. Near-critical fire weather
may be possible for localized areas.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotter activation will not be needed today or tonight.

$$

URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
935 PM CDT Wed May 20 2026

MNZ012-019>021-037-WIZ001>004-008-009-211300-
/O.CON.KDLH.FR.Y.0005.260521T0600Z-260521T1300Z/
Northern Cook and Lake-Central St. Louis-Southern Lake-Southern
Cook-Carlton and South St. Louis-Douglas-Bayfield-Ashland-Iron-
Sawyer-Price-
Including the cities of Hurley, Hibbing, Hayward, Isabella, Two
Harbors, Superior, Washburn, Duluth, Ashland, Grand Marais,
Bayfield, Silver Bay, and Phillips
935 PM CDT Wed May 20 2026

...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.

&&

$$

For more information on Northland weather, visit www.weather.
gov/duluth

LE

Hazard Report Provided By forecast.weather.gov