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NWS Green Bay WIMA.W 0028June 30, 2026

Special Marine Warning: Sturgeon Bay to Two Rivers WI, Two Rivers to Sheboygan WI, Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake and 1 more

The National Weather Service office in Green Bay issued a special marine warning for Sturgeon Bay to Two Rivers WI, Two Rivers to Sheboygan WI, Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake and 1 more, which was in force until 8:30 p.m. local time on June 30. It was the 28th special marine warning the NWS office in Green Bay issued in 2026.

ExpiredWarning

Issued7:28 p.m. CDT, June 30, 2026
In force7:28 p.m. CDT, June 30, 2026
Expired8:30 p.m. CDT, June 30, 2026

In force for 1 hour; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Green Bay WI
Area
Sturgeon Bay to Two Rivers WI, Two Rivers to Sheboygan WI, Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake and 1 more
Level
Warning
Issued
7:28 p.m. CDT, June 30, 2026
Expires
8:30 p.m. CDT, June 30, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KGRB MA.W 0028
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

SMWGRB The National Weather Service in Green Bay has issued a * Special Marine Warning for... Nearshore waters from Sturgeon Bay to Sheboygan... Open waters of Lake Michigan from Sturgeon Bay to Sheboygan... * Until 830 PM CDT. * At 728 PM CDT, A line of strong thunderstorm was located 9 NM east of Kewaunee Pierhead Light, moving east at 40 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * This strong thunderstorm will remain over mainly open waters.

What the agency told people to do

Move to safe harbor until hazardous weather passes.

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