087
WHUS73 KDTX 300231
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
931 PM EST Sat Nov 29 2025

LHZ441-301515-
/O.CON.KDTX.SC.Y.0089.251130T0300Z-251130T1900Z/
/O.CON.KDTX.GL.W.0027.251130T1900Z-251201T0300Z/
Port Austin to Harbor Beach MI-
931 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM EST SUNDAY...

* WHAT...During the Small Craft Advisory, expect sustained winds
  up to 22 knots from the south with gusts up to 28 knots. The
  largest significant waves will be 7 feet with a potential
  maximum wave height of 10 feet. During the Gale Warning,
  expect sustained winds up to 30 knots from the northwest with
  gusts up to 37 knots. The largest significant waves will be 11
  feet with a potential maximum wave height of 16 feet.

* WHERE...Port Austin to Harbor Beach MI.

* WHEN...During the Small Craft Advisory, the maximum winds are
  expected around 2 AM EST Sunday with the largest waves
  expected around 4 AM EST Sunday. During the Gale Warning, the
  maximum winds are expected around 9 PM EST Sunday with the
  largest waves expected around 9 PM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ362-363-462>464-301515-
/O.CON.KDTX.GL.W.0027.251130T1900Z-251201T0300Z/
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
931 PM EST Sat Nov 29 2025

...GALE WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM EST SUNDAY...

* WHAT...Expect sustained winds up to 32 knots from the
  northwest with gusts up to 38 knots. The largest significant
  waves will be 12 feet with a potential maximum wave height of
  17 feet.

* WHERE...Lake Huron from Presque Isle Light to Sturgeon Point
  MI beyond 5NM off shore, Lake Huron from Sturgeon Point to
  Alabaster MI beyond 5NM off shore, Lake Huron from Port Austin
  to Harbor Beach beyond 5NM Off Shore, Lake Huron from Harbor
  Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from
  Port Sanilac to Port Huron beyond 5NM Off Shore.

* WHEN...The maximum winds are expected around 7 PM EST Sunday
  with the largest waves expected around 9 PM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LEZ444-301515-
/O.CON.KDTX.SC.Y.0089.000000T0000Z-251201T0300Z/
/O.CON.KDTX.LO.Y.0010.251130T0800Z-251201T0300Z/
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
931 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST
SUNDAY...
...LOW WATER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 10 PM EST
SUNDAY...

* WHAT...During the Small Craft Advisory, expect sustained winds
  up to 27 knots from the southwest with gusts up to 34 knots.
  The largest significant waves will be 5 feet with a potential
  maximum wave height of 7 feet. During the Low Water Advisory,
  abnormally low water levels expected.

* WHERE...Michigan Waters of Lake Erie from Detroit River to
  North Cape MI.

* WHEN...The maximum winds are expected around 9 AM EST Sunday
  with the largest waves expected around 3 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft. Below
  normal water levels will result in hazardous navigating
  conditions.

* ADDITIONAL DETAILS...At 9:00 PM EST Saturday, the water level at
  Toledo was 23.9 inches above low water datum. The critical mark
  for safe navigation is 5 inches below low water datum. Water
  levels in the western basin of Lake Erie are expected to fall
  below the critical mark for safe navigation between 3 AM and 7
  AM Sunday and then rebound to above the critical mark during
  Sunday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Mariners should navigate shallow waters with extreme caution due
to below normal water levels.

&&

$$

LCZ460-301515-
/O.CON.KDTX.SC.Y.0089.000000T0000Z-251201T0300Z/
Lake St Clair-
931 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST
SUNDAY...

* WHAT...Expect sustained winds up to 23 knots from the
  southwest with gusts up to 31 knots. The largest significant
  waves will be 3 feet with a potential maximum wave height of 4
  feet.

* WHERE...Lake St Clair.

* WHEN...The maximum winds are expected around 9 AM EST Sunday
  with the largest waves expected around 9 AM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ421-442-443-301515-
/O.CON.KDTX.SC.Y.0089.251130T0300Z-251201T1200Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
931 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST MONDAY...

* WHAT...Expect sustained winds up to 27 knots from the west
  with gusts up to 35 knots. The largest significant waves will
  be 7 feet with a potential maximum wave height of 10 feet.

* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
  Inner Saginaw Bay, Harbor Beach to Port Sanilac MI and Port
  Sanilac to Port Huron MI.

* WHEN...The maximum winds are expected around 7 PM EST Sunday
  with the largest waves expected around 9 PM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ422-301515-
/O.CON.KDTX.SC.Y.0089.251130T1500Z-251201T0300Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
931 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM EST
SUNDAY...

* WHAT...Expect sustained winds up to 23 knots from the
  northwest with gusts up to 33 knots. The largest significant
  waves will be 4 feet with a potential maximum wave height of 5
  feet.

* WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI.

* WHEN...The maximum winds are expected around 7 PM EST Sunday
  with the largest waves expected around 8 PM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$