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Small Craft Advisory 0045
Issued by the Grand Rapids Forecast Office

Action Issued Starts Expiration
New 2026-06-17 02:15:48 2026-06-17 13:00:00 2026-06-18 15:00:00
Continued 2026-06-17 13:27:22 2026-06-18 15:00:00
Continued 2026-06-18 01:30:41 2026-06-18 15:00:00
Time Extended 2026-06-18 01:30:41 2026-06-18 17:00:00
Continued 2026-06-18 12:13:38 2026-06-18 15:00:00
Continued 2026-06-18 12:13:38 2026-06-18 17:00:00


Action: New
Issued At: 2026-06-17 02:15:48

798 
WHUS73 KGRR 170715
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
315 AM EDT Wed Jun 17 2026

LMZ844>849-172000-
/O.NEW.KGRR.SC.Y.0045.260617T1800Z-260618T2000Z/
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-
315 AM EDT Wed Jun 17 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
4 PM EDT THURSDAY...

* WHAT...Southeast winds 15 to 25 knots with gusts around 30 knots
  and waves 1 to 3 feet expected today, and west winds 15 to 25
  knots with gusts to 30 knots and waves 4 to 7 feet expected 
  Thursday.

* WHERE...St Joseph to Manistee.

* WHEN...From 2 PM this afternoon to 4 PM EDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Rain and thunderstorms this afternoon and
  evening may be associated with gale force wind gusts from the
  southeast in some areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-06-17 13:27:22

747 
WHUS73 KGRR 171827
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
227 PM EDT Wed Jun 17 2026

LMZ844>849-180230-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2000Z/
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-
227 PM EDT Wed Jun 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT
THURSDAY...

* WHAT...West winds 15 to 25 knots with gusts up to 30 knots and 
  waves 3 to 6 feet.

* WHERE...St Joseph to Manistee.

* WHEN...Until 4 PM EDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...Rain and thunderstorms this afternoon and
  evening may be associated with gale force wind gusts from the
  southeast in some areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-06-18 01:30:41

435 
WHUS73 KGRR 180630
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
230 AM EDT Thu Jun 18 2026

LMZ844>847-182000-
/O.EXT.KGRR.SC.Y.0045.000000T0000Z-260618T2200Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
230 AM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...West winds 15 to 25 knots with gusts up to 30 knots and 
  waves 4 to 7 feet.

* WHERE...St Joseph to Whitehall.

* WHEN...Until 6 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ848-849-182000-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
230 AM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 20 knots with gusts up to 30 
  knots and waves 3 to 5 feet.

* WHERE...Whitehall to Manistee.

* WHEN...Until 4 PM EDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Time Extended
Issued At: 2026-06-18 01:30:41

435 
WHUS73 KGRR 180630
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
230 AM EDT Thu Jun 18 2026

LMZ844>847-182000-
/O.EXT.KGRR.SC.Y.0045.000000T0000Z-260618T2200Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
230 AM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...West winds 15 to 25 knots with gusts up to 30 knots and 
  waves 4 to 7 feet.

* WHERE...St Joseph to Whitehall.

* WHEN...Until 6 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ848-849-182000-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
230 AM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 20 knots with gusts up to 30 
  knots and waves 3 to 5 feet.

* WHERE...Whitehall to Manistee.

* WHEN...Until 4 PM EDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-06-18 12:13:38

694 
WHUS73 KGRR 181712
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
112 PM EDT Thu Jun 18 2026

LMZ844>847-182200-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2200Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
112 PM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...West winds 10 to 15 knots with gusts up to 25 knots and 
  waves 2 to 5 feet.

* WHERE...St Joseph to Whitehall.

* WHEN...Until 6 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ848-849-182000-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
112 PM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 15 knots with gusts up to 25 knots
  and waves 2 to 5 feet.

* WHERE...Whitehall to Manistee.

* WHEN...Until 4 PM EDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2026-06-18 12:13:38

694 
WHUS73 KGRR 181712
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
112 PM EDT Thu Jun 18 2026

LMZ844>847-182200-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2200Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
112 PM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...West winds 10 to 15 knots with gusts up to 25 knots and 
  waves 2 to 5 feet.

* WHERE...St Joseph to Whitehall.

* WHEN...Until 6 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ848-849-182000-
/O.CON.KGRR.SC.Y.0045.000000T0000Z-260618T2000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
112 PM EDT Thu Jun 18 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 15 knots with gusts up to 25 knots
  and waves 2 to 5 feet.

* WHERE...Whitehall to Manistee.

* WHEN...Until 4 PM EDT this afternoon.

* 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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