071
WHUS73 KGRB 130429
MWWGRB
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
1129 PM CDT SUN APR 12 2026
LMZ541-131230-
/O.CON.KGRB.MF.Y.0002.000000T0000Z-260413T1200Z/
/O.CON.KGRB.SC.Y.0041.000000T0000Z-260413T1500Z/
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
1129 PM CDT SUN APR 12 2026
..DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
MONDAY...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN 1 NM. FOR THE SMALL CRAFT ADVISORY,
SOUTH TO SOUTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT
SUBSIDING TO 10 TO 15 KT MONDAY MORNING. WAVES 5 TO 9 FT
SUBSIDING TO 2 TO 4 FT MONDAY MORNING.
* WHERE...LAKE MICHIGAN NEARSHORE WATERS FROM WASHINGTON ISLAND
TO STURGEON BAY.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 7 AM CDT MONDAY. FOR
THE SMALL CRAFT ADVISORY, UNTIL 10 AM CDT MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT. LOW
VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE
YOUR RADAR AND COMPASS.
LMZ542-543-131230-
/O.CON.KGRB.SC.Y.0041.000000T0000Z-260413T1500Z/
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
1129 PM CDT SUN APR 12 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
MONDAY...
* WHAT...SOUTHWEST TO SOUTH WINDS 10 TO 20 KT WITH GUSTS UP TO 25
KT, BECOMING WEST AND DECREASING TO 10 TO 15 KTS MONDAY MORNING.
WAVES 5 TO 8 FT SUBSIDING TO 2 TO 4 FT MONDAY MORNING.
* WHERE...LAKE MICHIGAN NEARSHORE WATERS FROM STURGEON BAY TO
SHEBOYGAN.
* WHEN...UNTIL 10 AM 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.
LMZ521-522-130900-
/O.CON.KGRB.SC.Y.0041.000000T0000Z-260413T0900Z/
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-
1129 PM CDT SUN APR 12 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY
* WHAT...SOUTHWEST WINDS 10 TO 20 KT WITH GUSTS UP TO 25 KT
BECOMING WEST 10 TO 15 KT MONDAY MORNING. WAVES 2 TO 5 FT.
* WHERE...CENTRAL AND SOUTHERN BAY OF GREEN BAY.
* WHEN...UNTIL 4 AM 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.
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