Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
742 PM EDT Wed Jul 30 2025
LEZ444-311430-
/O.EXT.KDTX.SC.Y.0060.250731T0000Z-250801T0800Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
742 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EDT FRIDAY...
* WHAT...Expect sustained winds up to 20 knots from the northeast
with gusts up to 30 knots. The largest significant waves will
be 4 feet with a potential maximum wave height of 5 feet.
* WHERE...Michigan Waters of Lake Erie from Detroit River to
North Cape MI.
* WHEN...The maximum winds are expected around 5 AM EDT Thursday
with the largest waves expected around 8 AM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
742 PM EDT Wed Jul 30 2025
LHZ421-422-311430-
/O.EXT.KDTX.SC.Y.0060.250731T0000Z-250801T0200Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
742 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT THURSDAY...
* WHAT...Expect sustained winds up to 20 knots from the
northeast with gusts up to 25 knots. The largest significant
waves will be 5 feet with a potential maximum wave height of 7
feet.
* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
Inner Saginaw Bay and Inner Saginaw Bay SW of Point Au Gres to
Bay Port MI.
* WHEN...The maximum winds are expected around 3 PM EDT Thursday
with the largest waves expected around 1 PM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
KGK
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
742 PM EDT Wed Jul 30 2025
LHZ441>443-311430-
/O.EXT.KDTX.SC.Y.0060.250731T0000Z-250801T0800Z/
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
742 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EDT FRIDAY...
* WHAT...Expect sustained winds up to 20 knots from the northeast
with gusts up to 30 knots. The largest significant waves will
be 6 feet with a potential maximum wave height of 8 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 Thursday
with the largest waves expected around 8 PM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
742 PM EDT Wed Jul 30 2025
LCZ460-311430-
/O.EXB.KDTX.SC.Y.0060.250731T0000Z-250801T0800Z/
Lake St Clair-
742 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT FRIDAY...
* WHAT...Expect sustained winds up to 20 knots from the northeast
with gusts up to 25 knots. The largest significant waves will
be 2 feet with a potential maximum wave height of 3 feet.
* WHERE...Lake St Clair.
* WHEN...The maximum winds are expected around 8 PM EDT
Wednesday with the largest waves expected around 8 PM EDT
Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
359 PM EDT Wed Jul 30 2025
LOZ043-044-310400-
/O.NEW.KBUF.SC.Y.0065.250731T0600Z-250801T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
359 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM THURSDAY TO 2 PM EDT
FRIDAY...
* WHAT...Northeast winds 15 to 20 knots and waves 3 to 6 feet
expected.
* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach
to Mexico Bay.
* WHEN...From 2 AM Thursday to 2 PM EDT Friday.
* IMPACTS...Winds and/or waves will cause hazardous conditions
that could capsize or damage small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
359 PM EDT Wed Jul 30 2025
LOZ042-310400-
/O.NEW.KBUF.SC.Y.0065.250731T0600Z-250801T1800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
359 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM THURSDAY TO 2 PM EDT
FRIDAY...
* WHAT...Northeast winds 15 to 20 knots and waves 3 to 6 feet
expected.
* WHERE...The nearshore waters of Lake Ontario from the Niagara
River to Hamlin Beach.
* WHEN...From 2 AM Thursday to 2 PM EDT Friday.
* IMPACTS...Winds and/or waves will cause hazardous conditions
that could capsize or damage small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Cleveland OH
331 PM EDT Wed Jul 30 2025
LEZ144>147-310345-
/O.CON.KCLE.SC.Y.0038.250731T0400Z-250802T0200Z/
The Islands to Vermilion OH-Vermilion to Avon Point OH-
Avon Point to Willowick OH-Willowick to Geneva-on-the Lake OH-
331 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 10 PM EDT FRIDAY...
* WHAT...Northeast winds 15 to 25 knots and waves 5 to 8 feet
expected.
* WHERE...The nearshore waters of Lake Erie from the Islands to
Geneva-on-the-Lake OH.
* WHEN...From midnight tonight to 10 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Cleveland OH
331 PM EDT Wed Jul 30 2025
LEZ148-149-310345-
/O.CON.KCLE.SC.Y.0038.250731T0800Z-250801T2000Z/
Geneva-on-the-Lake to Conneaut OH-Conneaut OH to Ripley NY-
331 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM THURSDAY TO
4 PM EDT FRIDAY...
* WHAT...Northeast winds 15 to 25 knots and waves 3 to 6 feet
expected.
* WHERE...The nearshore waters of Lake Erie from Geneva-on-the-
Lake OH to Ripley NY.
* WHEN...From 4 AM Thursday to 4 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://www.weather.gov/cle
URGENT - MARINE WEATHER MESSAGE
National Weather Service Cleveland OH
331 PM EDT Wed Jul 30 2025
LEZ142-143-310345-
/O.CON.KCLE.SC.Y.0038.250731T0200Z-250801T1400Z/
Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH-
331 PM EDT Wed Jul 30 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 10 AM EDT FRIDAY...
* WHAT...Northeast winds 15 to 25 knots and waves 2 to 5 feet
expected.
* WHERE...The nearshore waters of Lake Erie from Maumee Bay to
The Islands OH.
* WHEN...From 10 PM this evening to 10 AM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$