Marine Weather Message
Issued by NWS Green Bay, WI

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996
WHUS73 KGRB 201805
MWWGRB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
105 PM CDT Fri Jun 20 2025

LMZ541>543-210215-
/O.CON.KGRB.SC.Y.0059.250621T0900Z-250623T1800Z/
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
105 PM CDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM SATURDAY TO
1 PM CDT MONDAY...

* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and
  waves 4 to 7 ft expected.

* WHERE...Lake Michigan nearshore waters from Washington Island
  to Sheboygan.

* WHEN...From 4 AM Saturday to 1 PM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ521-522-210215-
/O.CON.KGRB.SC.Y.0059.250621T0900Z-250622T0000Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
105 PM CDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM CDT
SATURDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and
  waves 1 to 3 ft expected.

* WHERE...Central and Southern Bay of Green Bay.

* WHEN...From 4 AM to 7 PM CDT Saturday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$