WHUS73 KGRR 180801
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
401 AM EDT Mon May 18 2026

LMZ844-845-181615-
/O.NEW.KGRR.SC.Y.0035.260519T0600Z-260520T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
401 AM EDT Mon May 18 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT TUESDAY...

* WHAT...Southwest winds 15 to 30 knots and waves 2 to 5 feet 
  expected.

* WHERE...St Joseph to Holland.

* WHEN...From 2 AM to 8 PM EDT 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.

&&

$$

LMZ846>849-181615-
/O.EXT.KGRR.SC.Y.0034.000000T0000Z-260520T0000Z/
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
401 AM EDT Mon May 18 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT TUESDAY...

* WHAT...South winds 15 to 30 knots and waves 5 to 8 feet.

* WHERE...Holland to Manistee.

* WHEN...Until 8 PM EDT 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.

&&

$$