WHUS73 KAPX 201801
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
201 PM EDT Wed May 20 2026

LHZ345>348-202200-
/O.EXP.KAPX.SC.Y.0041.000000T0000Z-260520T1800Z/
/O.NEW.KAPX.SC.Y.0042.260520T1801Z-260520T2200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-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-
201 PM EDT Wed May 20 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

* WHAT...Highest gusts up to 25 kts from the northwest and 
  highest waves around 4 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary.

* WHEN...Until 6 PM EDT this evening.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-202200-
/O.EXP.KAPX.SC.Y.0041.000000T0000Z-260520T1800Z/
/O.NEW.KAPX.SC.Y.0042.260520T1801Z-260520T2200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
201 PM EDT Wed May 20 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

* WHAT...Highest gusts up to 25 kts from the northwest and 
  highest waves around 4 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 6 PM EDT this evening.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$