Watches, Warnings & Advisories



2 products found for Marine Zone: LMZ847

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
511 AM EDT Fri Oct 17 2025

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-
511 AM EDT Fri Oct 17 2025

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

.DAY ONE...Today and Tonight

Conditions will be hazardous for smaller craft both today and
tonight. The largest waves will be found from Holland north up the
shoreline.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Smaller craft will continue to find hazardous conditions on
Saturday. On Sunday gale force winds are expected along with waves
in excess of 10 feet. A second strong fall storm is anticipated
from Monday into Tuesday with another round of wind and waves.

Thunderstorms will be possible over Lake Michigan Saturday into
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

DUKE




Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
442 AM EDT Fri Oct 17 2025

LMZ844>849-171645-
/O.CON.KGRR.SC.Y.0086.251017T0900Z-251019T0000Z/
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-
442 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

* WHAT...South winds 15 to 25 knots with gusts up to 30 knots.
  Waves of 4 to 7 feet are expected north of Holland. South of
  Holland waves will be in the 2 to 5 foot range.

* WHERE...St Joseph to Manistee.

* WHEN...Until 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$