593
WHUS73 KGRR 071732
MWWGRR
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
132 PM EDT FRI AUG 7 2026
LMZ845-846-071845-
/O.CAN.KGRR.MF.Y.0010.000000T0000Z-260807T1800Z/
SOUTH HAVEN TO HOLLAND MI-HOLLAND TO GRAND HAVEN MI-
132 PM EDT FRI AUG 7 2026
..DENSE FOG ADVISORY IS CANCELLED
THE FOG HAS LIFTED AND DISSIPATED AND ANY FOG HAS MOVED NORTHWARD.
SO THE ADVISORY HAS BEEN CANCELLED.
LMZ849-080145-
/O.EXT.KGRR.MF.Y.0010.000000T0000Z-260807T2200Z/
/O.NEW.KGRR.SC.Y.0057.260807T1800Z-260808T0300Z/
PENTWATER TO MANISTEE MI-
132 PM EDT FRI AUG 7 2026
..DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS EVENING
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO ONE QUARTER NAUTICAL MILE OR LESS. FOR THE SMALL
CRAFT ADVISORY, SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20
KNOTS EXPECTED.
* WHERE...PENTWATER TO MANISTEE MI.
* WHEN...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO ONE QUARTER NAUTICAL MILE OR LESS UNTIL 6 PM EDT
THIS EVENING. FOR THE SMALL CRAFT ADVISORY, UNTIL 11 PM EDT THIS
EVENING.
* 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.
LMZ847-848-072200-
/O.EXT.KGRR.MF.Y.0010.000000T0000Z-260807T2200Z/
GRAND HAVEN TO WHITEHALL MI-WHITEHALL TO PENTWATER MI-
132 PM EDT FRI AUG 7 2026
..DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS EVENING
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO ONE QUARTER NAUTICAL
MILE OR LESS.
* WHERE...GRAND HAVEN TO PENTWATER.
* WHEN...UNTIL 6 PM EDT THIS EVENING.
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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