679
WHUS73 KDLH 171941
MWWDLH
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DULUTH MN
241 PM CDT FRI APR 17 2026
LSZ140>142-180745-
/O.EXT.KDLH.GL.W.0016.260417T2200Z-260418T0800Z/
GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
241 PM CDT FRI APR 17 2026
..GALE WARNING NOW IN EFFECT UNTIL 3 AM CDT SATURDAY
* WHAT...NORTHWEST WINDS 10 TO 20 KT WITH GUSTS UP TO 40 KT AND
WAVES 1 TO 3 FT EXPECTED.
* WHERE...GRAND PORTAGE TO GRAND MARAIS MN, GRAND MARAIS TO
TACONITE HARBOR MN AND TACONITE HARBOR TO SILVER BAY HARBOR MN.
* WHEN...UNTIL 3 AM CDT SATURDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL DETAILS...CONDITIONS WILL REMAIN HAZARDOUS FOR
SMALLER VESSELS AFTER THE GALES SUBSIDE. SMALL CRAFT ADVISORIES
WILL EVENTUALLY BE NEEDED.
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.
LSZ143-144-180745-
/O.CON.KDLH.SC.Y.0050.260417T2100Z-260419T0300Z/
SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN-
241 PM CDT FRI APR 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT
SATURDAY...
* WHAT...WEST WINDS 10 TO 20 KT WITH GUSTS UP TO 35 KT AND WAVES
1 TO 3 FT EXPECTED.
* WHERE...SILVER BAY HARBOR TO TWO HARBORS MN AND TWO HARBORS TO
DULUTH MN.
* WHEN...UNTIL 10 PM CDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN
HAZARDOUS CONDITIONS.
LSZ145-146-180745-
/O.CON.KDLH.SC.Y.0050.260417T2100Z-260419T0300Z/
DULUTH MN TO PORT WING WI-PORT WING TO SAND ISLAND WI-
241 PM CDT FRI APR 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT
SATURDAY...
* WHAT...WEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND WAVES
3 TO 6 FT EXPECTED.
* WHERE...DULUTH MN TO PORT WING WI AND PORT WING TO SAND ISLAND
WI.
* WHEN...UNTIL 10 PM CDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN
HAZARDOUS CONDITIONS.
LSZ121-147-148-180745-
/O.CON.KDLH.SC.Y.0050.260417T2100Z-260419T0300Z/
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-
SAND ISLAND TO BAYFIELD WI-OAK POINT TO SAXON HARBOR WI-
241 PM CDT FRI APR 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT
SATURDAY...
* WHAT...WEST WINDS 10 TO 20 KT WITH GUSTS UP TO 30 KT AND WAVES
1 TO 4 FT EXPECTED.
* WHERE...CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI, SAND ISLAND
TO BAYFIELD WI AND OAK POINT TO SAXON HARBOR WI.
* WHEN...UNTIL 10 PM CDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN
HAZARDOUS CONDITIONS.
LSZ150-180745-
/O.CON.KDLH.SC.Y.0050.260417T2100Z-260419T0900Z/
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-
241 PM CDT FRI APR 17 2026
..SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT SUNDAY
* WHAT...WEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND WAVES
3 TO 6 FT EXPECTED.
* WHERE...OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND.
* WHEN...UNTIL 4 AM CDT SUNDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ANYONE OPERATING A SMALLER VESSEL SHOULD AVOID NAVIGATING IN
HAZARDOUS CONDITIONS.
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