618
WHUS73 KGRB 181958
MWWGRB
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
258 PM CDT MON MAY 18 2026
LMZ541>543-190400-
/O.CAN.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/
/O.EXB.KGRB.SC.Y.0053.260519T0600Z-260520T0600Z/
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
258 PM CDT MON MAY 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TUESDAY TO 1 AM CDT
WEDNESDAY...
* WHAT...SOUTHWEST WINDS 10 TO 20 KT WITH GUSTS UP TO 25 KT,
VEERING NORTHWEST TUESDAY AFTERNOON. WAVES 3 TO 6 FT EXPECTED.
* WHERE...LAKE MICHIGAN NEARSHORE WATERS FROM WASHINGTON ISLAND
TO SHEBOYGAN.
* WHEN...FROM 1 AM TUESDAY TO 1 AM CDT WEDNESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
* ADDITIONAL DETAILS...PATCHY FOG MAY BE DENSE AT TIMES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LMZ521-522-190400-
/O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/
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-
258 PM CDT MON MAY 18 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT
TUESDAY...
* WHAT...WEST WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT AND WAVES
1 TO 2 FT EXPECTED.
* WHERE...CENTRAL AND SOUTHERN BAY OF GREEN BAY.
* WHEN...FROM 10 AM TO 7 PM CDT TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
JLA
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