054
WHUS73 KGRR 202031
MWWGRR
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
331 PM EST MON JAN 20 2025
LMZ844>849-210445-
/O.CON.KGRR.UP.W.0001.000000T0000Z-250122T1800Z/
/O.CON.KGRR.SC.Y.0005.000000T0000Z-250123T1400Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
331 PM EST MON JAN 20 2025
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
WEDNESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST
THURSDAY...
* WHAT...FOR THE HEAVY FREEZING SPRAY WARNING, HEAVY FREEZING
SPRAY AT A RATE OF UP TO ONE INCH PER HOUR MAY RAPIDLY
ACCUMULATE ON VESSELS. FOR THE SMALL CRAFT ADVISORY, WEST
WINDS 15 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS AND WAVES 5 TO
8 FEET.
* WHERE...ST JOSEPH TO MANISTEE.
* WHEN...FOR THE HEAVY FREEZING SPRAY WARNING, UNTIL 1 PM EST
WEDNESDAY. FOR THE SMALL CRAFT ADVISORY, UNTIL 9 AM EST
THURSDAY.
* IMPACTS...OPERATING A VESSEL IN HEAVY FREEZING SPRAY IS
HAZARDOUS. FREEZING SPRAY MAY RENDER MECHANICAL AND ELECTRONIC
COMPONENTS INOPERATIVE. RAPID ICE ACCRETION ON DECKS AND
SUPERSTRUCTURES MAY RESULT IN A CATASTROPHIC LOSS OF
STABILITY. CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD PREPARE FOR DANGEROUS ACCUMULATION OF ICE ON
THEIR VESSEL. IF POSSIBLE, REMAIN IN PORT, AVOID THE WARNING AREA
OR CONDUCT MITIGATION.
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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