Marine Weather Message
Issued by NWS Duluth, MN

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610
WHUS73 KDLH 041807
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1207 PM CST Thu Dec 4 2025

LSZ140>144-050600-
/O.EXP.KDLH.SC.Y.0132.000000T0000Z-251204T1800Z/
/O.CON.KDLH.GL.W.0034.000000T0000Z-251205T0600Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
1207 PM CST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 7 to 10 ft.

* WHERE...Grand Portage to Grand Marais MN, Grand Marais to
  Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN,
  Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth
  MN.

* WHEN...Until midnight CST tonight.

* 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.

&&

$$

LSZ150-050600-
/O.EXP.KDLH.SC.Y.0132.000000T0000Z-251204T1800Z/
/O.CON.KDLH.GL.W.0034.000000T0000Z-251205T0600Z/
Outer Apostle Islands Beyond 5 NM from Mainland-
1207 PM CST Thu Dec 4 2025

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 5 to 8 ft.

* WHERE...Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until midnight CST tonight.

* 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.

&&

$$

LSZ121-145>148-050615-
/O.CON.KDLH.SC.Y.0132.000000T0000Z-251205T1600Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
1207 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST
FRIDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 40 kt and
  waves 3 to 6 ft.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI, Duluth MN to
  Port Wing WI, Port Wing to Sand Island WI, Sand Island to
  Bayfield WI and Oak Point to Saxon Harbor WI.

* WHEN...Until 10 AM CST Friday.

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

* ADDITIONAL DETAILS...Wind gusts may drop below 20 knots for a
  time Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone operating a smaller vessel should avoid navigating in
hazardous conditions.

&&

$$