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Monday, Aug 10, 2026 02:16:12

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Small Craft Advisory 0057
Issued by the Grand Rapids Forecast Office

Action Issued Starts Expiration
New 2026-08-07 12:32:20 2026-08-07 13:00:00 2026-08-07 22:00:00
Continued 2026-08-07 17:38:00 2026-08-07 22:00:00
Expired 2026-08-07 21:58:10 2026-08-07 22:00:00


Action: New
Issued At: 2026-08-07 12:32:20

361 
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.

&&

$$


Action: Continued
Issued At: 2026-08-07 17:38:00

708 
WHUS73 KGRR 072237
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
637 PM EDT Fri Aug 7 2026

LMZ849-080300-
/O.CON.KGRR.SC.Y.0057.000000T0000Z-260808T0300Z/
Pentwater to Manistee MI-
637 PM EDT Fri Aug 7 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

* WHAT...South winds 10 to 15 knots with gusts up to 20 knots.

* WHERE...Pentwater to Manistee MI.

* WHEN...Until 11 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.

&&

$$


Action: Expired
Issued At: 2026-08-07 21:58:10

184 
WHUS73 KGRR 080257
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
1057 PM EDT Fri Aug 7 2026

LMZ849-080400-
/O.EXP.KGRR.SC.Y.0057.000000T0000Z-260808T0300Z/
Pentwater to Manistee MI-
1057 PM EDT Fri Aug 7 2026

...SMALL CRAFT ADVISORY WILL EXPIRE AT 11 PM EDT THIS EVENING...

Winds and waves have dimished below advisory levels.

$$



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