Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
345 AM EDT Tue May 20 2025
LHZ441>443-201945-
/O.EXT.KDTX.SC.Y.0044.250520T1400Z-250523T0200Z/
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
345 AM EDT Tue May 20 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO
10 PM EDT THURSDAY...
* WHAT...Expect sustained winds up to 20 knots from the
northeast with gusts up to 25 knots. The largest significant
waves will be 4 feet with a potential maximum wave height of 5
feet.
* WHERE...Port Austin to Harbor Beach MI, Harbor Beach to Port
Sanilac MI and Port Sanilac to Port Huron MI.
* WHEN...The maximum winds are expected around 7 PM EDT Tuesday
with the largest waves expected around 8 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
345 AM EDT Tue May 20 2025
LCZ460-LEZ444-201945-
/O.CON.KDTX.SC.Y.0043.250520T1400Z-250521T1400Z/
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
345 AM EDT Tue May 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 10 AM EDT WEDNESDAY...
* WHAT...Expect sustained winds up to 20 knots from the east
with gusts up to 25 knots. The largest significant waves will
be 4 feet with a potential maximum wave height of 5 feet.
* WHERE...In Lake St Clair, Lake St Clair. In Lake Erie,
Michigan Waters of Lake Erie from Detroit River to North Cape
MI.
* WHEN...The maximum winds are expected around 5 PM EDT Tuesday
with the largest waves expected around 5 PM EDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
345 AM EDT Tue May 20 2025
LHZ421-422-201945-
/O.EXT.KDTX.SC.Y.0043.000000T0000Z-250523T0200Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
345 AM EDT Tue May 20 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT THURSDAY...
* WHAT...Expect sustained winds up to 25 knots from the
northeast with gusts up to 30 knots. The largest significant
waves will be 5 feet with a potential maximum wave height of 7
feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay and Inner Saginaw Bay SW of Point Au Gres to
Bay Port MI.
* WHEN...The maximum winds are expected around 2 PM EDT Tuesday
with the largest waves expected around 2 PM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Cleveland OH
336 AM EDT Tue May 20 2025
LEZ145-146-201545-
/O.EXB.KCLE.SC.Y.0031.250520T1800Z-250522T0200Z/
Vermilion to Avon Point OH-Avon Point to Willowick OH-
336 AM EDT Tue May 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
10 PM EDT WEDNESDAY...
* WHAT...Northeast winds 15 to 25 knots and waves 2 to 5 feet
expected.
* WHERE...The nearshore waters of Lake Erie from Vermilion to
Willowick OH.
* WHEN...From 2 PM this afternoon to 10 PM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Cleveland OH
336 AM EDT Tue May 20 2025
LEZ142>144-201545-
/O.CON.KCLE.SC.Y.0031.000000T0000Z-250522T0200Z/
Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH-
The Islands to Vermilion OH-
336 AM EDT Tue May 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT
WEDNESDAY...
* WHAT...Northeast winds 15 to 25 knots and waves 2 to 5 feet.
* WHERE...The nearshore waters of Lake Erie from Maumee Bay to
Vermilion OH.
* WHEN...Until 10 PM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://www.weather.gov/cle
