Watches, Warnings & Advisories



3 products issued by NWS for: 2NM SSW South Haven MI

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
515 AM EDT Fri Apr 17 2026

LMZ844>849-180915-
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-
515 AM EDT Fri Apr 17 2026

This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.

.DAY ONE...Today and Tonight

Dense fog reducing visibilities to a mile or less will continue
into this evening.

Thunderstorms will be possible tonight into tomorrow. Small craft
advisory is in effect tonight through the weekend.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Small craft advisory conditions will continue Saturday into
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.


$$




Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
355 AM EDT Fri Apr 17 2026

LMZ844>849-171600-
/O.EXT.KGRR.MF.Y.0002.000000T0000Z-260418T0000Z/
/O.NEW.KGRR.SC.Y.0023.260418T0000Z-260419T1200Z/
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-
355 AM EDT Fri Apr 17 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM
EDT SUNDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to one quarter nautical mile or less. For the Small
  Craft Advisory, west winds 15 to 25 knots with gusts up to 30
  knots and waves 3 to 6 feet expected.

* WHERE...St Joseph to Manistee.

* WHEN...For the Dense Fog Advisory, until 8 PM EDT this
  evening. For the Small Craft Advisory, from 8 PM this evening
  to 8 AM EDT Sunday.

* 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.

&&

$$




Dense Fog Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
355 AM EDT Fri Apr 17 2026

LMZ844>849-171600-
/O.EXT.KGRR.MF.Y.0002.000000T0000Z-260418T0000Z/
/O.NEW.KGRR.SC.Y.0023.260418T0000Z-260419T1200Z/
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-
355 AM EDT Fri Apr 17 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM
EDT SUNDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to one quarter nautical mile or less. For the Small
  Craft Advisory, west winds 15 to 25 knots with gusts up to 30
  knots and waves 3 to 6 feet expected.

* WHERE...St Joseph to Manistee.

* WHEN...For the Dense Fog Advisory, until 8 PM EDT this
  evening. For the Small Craft Advisory, from 8 PM this evening
  to 8 AM EDT Sunday.

* 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.

&&

$$