WHUS73 KAPX 130631
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
231 AM EDT Mon Apr 13 2026

LHZ345-LMZ323-341-342-344>346-131445-
/O.CON.KAPX.SC.Y.0027.000000T0000Z-260413T1500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
231 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* WHAT...Highest gusts up to 30 kts from the southwest and
  highest waves around 11 feet.

* WHERE...Portions of Lake Huron and Lake Michigan.

* WHEN...Until 11 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ346>349-LSZ321-322-131445-
/O.CON.KAPX.SC.Y.0027.000000T0000Z-260413T1500Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
231 AM EDT Mon Apr 13 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* WHAT...Highest gusts up to 30 kts from the southwest and
  highest waves around 8 feet.

* WHERE...Portions of Lake Huron and Lake Superior.

* WHEN...Until 11 AM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$