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NWS Duluth MNMA.W 0023June 30, 2026

Special Marine Warning: Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN, Two Harbors to Duluth MN and 3 more

The National Weather Service office in Duluth issued a special marine warning for Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN, Two Harbors to Duluth MN and 3 more, which was in force until 1:45 a.m. local time on June 30. It was the 23rd special marine warning the NWS office in Duluth issued in 2026.

ExpiredWarning

Issued12:51 a.m. CDT, June 30, 2026
In force12:51 a.m. CDT, June 30, 2026
Expired1:45 a.m. CDT, June 30, 2026

In force for 54 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Duluth MN
Area
Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN, Two Harbors to Duluth MN and 3 more
Level
Warning
Issued
12:51 a.m. CDT, June 30, 2026
Expires
1:45 a.m. CDT, June 30, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KDLH MA.W 0023
Official source
National Weather Service: the notice at its source

NWS notices, June 2026The latest from the National Weather Service

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SMWDLH The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Port Wing to Sand Island WI... Silver Bay Harbor to Two Harbors MN... Taconite Harbor to Silver Bay Harbor MN... Two Harbors to Duluth MN... * Until 145 AM CDT. * At 1250 AM CDT, strong thunderstorms were located along a line extending from 18 nm northwest of French River to 12 nm northwest of Duluth Lift Bridge Channel to 12 nm west of Duluth Harbor, moving east at 40 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Superior Entry, Knife River Marina, Castle Danger, Barkers Island, Duluth Harbor, Duluth Lift Bridge Channel, Twin Points Safe Harbor, Beaver Bay, Two Harbors Protected Access Agate Bay, Brule Point, McQuade Harbor, Superior Harbor, Larsmont, Split Rock Lighthouse, Port Wing Harbor, Stoney Point, Silver Bay Marina and Ore Dock, and French River.

What the agency told people to do

A Tornado Watch remains in effect until 200 AM CDT for northeastern Minnesota...northwestern Wisconsin...and the adjacent waters of Lake Superior.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice