WHUS73 KAPX 070142

MWWAPX



URGENT - MARINE WEATHER MESSAGE

National Weather Service Gaylord MI

942 PM EDT Sun Apr 6 2025



LHZ345-LMZ323-341-342-344>346-070945-

/O.CON.KAPX.SC.Y.0044.250407T1000Z-250408T0400Z/

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-

942 PM EDT Sun Apr 6 2025



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM MONDAY TO

MIDNIGHT EDT MONDAY NIGHT...



* WHAT...Highest gusts up to 30 kts from the north and highest 

  waves around 10 feet expected.



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



* WHEN...From 6 AM Monday to midnight EDT Monday night.



* 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>349-070945-

/O.CON.KAPX.SC.Y.0044.250407T1500Z-250408T1200Z/

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-

942 PM EDT Sun Apr 6 2025



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO

8 AM EDT TUESDAY...



* WHAT...Highest gusts up to 30 kts from the northwest and 

  highest waves around 8 feet expected.



* WHERE...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 and Sturgeon Pt to Alabaster MI.



* WHEN...From 11 AM Monday to 8 AM EDT Tuesday.



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



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$



LSZ321-322-070945-

/O.CON.KAPX.SC.Y.0044.250407T1500Z-250408T0400Z/

Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-

St. Marys River Point Iroquois to E. Potagannissing Bay-

942 PM EDT Sun Apr 6 2025



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO

MIDNIGHT EDT MONDAY NIGHT...



* WHAT...Highest gusts up to 30 kts from the north and highest 

  waves around 7 feet expected.



* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 

  Iroquois MI and St. Marys River Point Iroquois to E. 

  Potagannissing Bay.



* WHEN...From 11 AM Monday to midnight EDT Monday night.



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



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$