Watches, Warnings & Advisories



2 products issued by NWS for: 11NM SSW Grand Haven MI

Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
350 PM EDT Wed Jul 16 2025

LMZ844>849-170400-
/O.CON.KGRR.SC.Y.0065.250717T0600Z-250718T0600Z/
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-
350 PM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM THURSDAY TO
2 AM EDT FRIDAY...

* WHAT...Winds becoming northwest and then north tonight
  increasing to 15 to 30 knots. Waves will build to 4 to 7 feet
  overnight and continue at those heights through Thursday.

* WHERE...St Joseph to Manistee.

* WHEN...From 2 AM Thursday to 2 AM EDT Friday.

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

* ADDITIONAL DETAILS...Low pressure will sweep through the area
  tonight with northerly winds increasing in the wake of the low
  over Lake Michigan. Waves will build to 4 to 7 feet by
  Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DUKE




Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
430 AM EDT Wed Jul 16 2025

LMZ844>849-170830-
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-
430 AM EDT Wed Jul 16 2025

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

.DAY ONE...Today and Tonight

Scattered to numerous thunderstorms will be possible this
evening. Storms this evening have the potential to become strong
to severe. Damaging winds of 60 mph or greater will be the main
threat, along with locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Winds and waves will increase beginning early Thursday and linger
through much of the day. Winds and waves will be hazardous to
Small Craft and swimmers on Thursday.

Thunderstorms will become possible once again on Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible this evening.

$$