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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.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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