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Small Craft Advisory 0037
Issued by the Duluth Forecast Office

Action Issued Starts Expiration
New 2026-03-21 09:13:14 2026-03-21 09:12:00 2026-03-21 16:00:00
New 2026-03-21 09:13:14 2026-03-21 09:12:00 2026-03-22 08:00:00
Expired 2026-03-21 15:40:57 2026-03-21 16:00:00
Continued 2026-03-21 15:40:57 2026-03-22 08:00:00
Continued 2026-03-21 21:33:09 2026-03-22 08:00:00
Time Extended 2026-03-22 02:53:17 2026-03-22 19:00:00
Continued 2026-03-22 02:53:17 2026-03-22 08:00:00
Expired 2026-03-22 08:02:12 2026-03-22 08:00:00
Continued 2026-03-22 08:02:12 2026-03-22 19:00:00
Continued 2026-03-22 09:54:16 2026-03-22 19:00:00
Continued 2026-03-22 15:20:26 2026-03-22 19:00:00
Expired 2026-03-22 19:27:33 2026-03-22 19:00:00


Action: New
Issued At: 2026-03-21 09:13:14

929 
WHUS73 KDLH 211412
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
912 AM CDT Sat Mar 21 2026

LSZ143>146-212100-
/O.NEW.KDLH.SC.Y.0037.260321T1412Z-260321T2100Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
912 AM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Silver Bay Harbor to Two Harbors MN, Two Harbors to 
  Duluth MN, Duluth MN to Port Wing WI and Port Wing to Sand 
  Island WI.

* WHEN...Until 4 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-147-148-150-220215-
/O.NEW.KDLH.SC.Y.0037.260321T1412Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
912 AM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT SUNDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 8 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.

&&

$$


Action: New
Issued At: 2026-03-21 09:13:14

929 
WHUS73 KDLH 211412
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
912 AM CDT Sat Mar 21 2026

LSZ143>146-212100-
/O.NEW.KDLH.SC.Y.0037.260321T1412Z-260321T2100Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
912 AM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Silver Bay Harbor to Two Harbors MN, Two Harbors to 
  Duluth MN, Duluth MN to Port Wing WI and Port Wing to Sand 
  Island WI.

* WHEN...Until 4 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-147-148-150-220215-
/O.NEW.KDLH.SC.Y.0037.260321T1412Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
912 AM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CDT SUNDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 8 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.

&&

$$


Action: Expired
Issued At: 2026-03-21 15:40:57

515 
WHUS73 KDLH 212040
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
340 PM CDT Sat Mar 21 2026

LSZ143>146-212145-
/O.EXP.KDLH.SC.Y.0037.000000T0000Z-260321T2100Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
340 PM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM CDT THIS AFTERNOON...



$$

LSZ140>142-147-148-150-220845-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
340 PM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT SUNDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 8 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.

&&

$$


Action: Continued
Issued At: 2026-03-21 15:40:57

515 
WHUS73 KDLH 212040
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
340 PM CDT Sat Mar 21 2026

LSZ143>146-212145-
/O.EXP.KDLH.SC.Y.0037.000000T0000Z-260321T2100Z/
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
340 PM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM CDT THIS AFTERNOON...



$$

LSZ140>142-147-148-150-220845-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
340 PM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT SUNDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 8 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.

&&

$$


Action: Continued
Issued At: 2026-03-21 21:33:09

472 
WHUS73 KDLH 220232
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
932 PM CDT Sat Mar 21 2026

LSZ140>142-147-148-150-221300-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
932 PM CDT Sat Mar 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT SUNDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 5 ft.

* WHERE...Portions of Lake Superior. 

* WHEN...Until 8 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.

&&

$$


Action: Time Extended
Issued At: 2026-03-22 02:53:17

611 
WHUS73 KDLH 220752
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
252 AM CDT Sun Mar 22 2026

LSZ147-148-150-222000-
/O.EXT.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
252 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-221300-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
252 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS
MORNING...

* WHAT...North winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 2 ft.

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

* WHEN...Until 8 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-03-22 02:53:17

611 
WHUS73 KDLH 220752
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
252 AM CDT Sun Mar 22 2026

LSZ147-148-150-222000-
/O.EXT.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
252 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ140>142-221300-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
252 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS
MORNING...

* WHAT...North winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 2 ft.

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

* WHEN...Until 8 AM CDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Expired
Issued At: 2026-03-22 08:02:12

038 
WHUS73 KDLH 221301
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
801 AM CDT Sun Mar 22 2026

LSZ140>142-221415-
/O.EXP.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
801 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY HAS EXPIRED...

Mariners should pay close attention to the marine forecast, and
consider wind and sea conditions in planning.

$$

LSZ147-148-150-230000-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
801 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-03-22 08:02:12

038 
WHUS73 KDLH 221301
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
801 AM CDT Sun Mar 22 2026

LSZ140>142-221415-
/O.EXP.KDLH.SC.Y.0037.000000T0000Z-260322T1300Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
801 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY HAS EXPIRED...

Mariners should pay close attention to the marine forecast, and
consider wind and sea conditions in planning.

$$

LSZ147-148-150-230000-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
801 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 4 to 7 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-03-22 09:54:16

666 
WHUS73 KDLH 221453
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
953 AM CDT Sun Mar 22 2026

LSZ147-148-150-230000-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
953 AM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 20 kt and 
  waves 3 to 6 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-03-22 15:20:26

936 
WHUS73 KDLH 222019
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
319 PM CDT Sun Mar 22 2026

LSZ147-148-150-230000-
/O.CON.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
319 PM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Waves 3 to 5 ft.

* WHERE...Sand Island to Bayfield WI, Oak Point to Saxon Harbor 
  WI and Outer Apostle Islands Beyond 5 NM from Mainland.

* WHEN...Until 7 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Expired
Issued At: 2026-03-22 19:27:33

443 
WHUS73 KDLH 230026
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
726 PM CDT Sun Mar 22 2026

LSZ147-148-150-230130-
/O.EXP.KDLH.SC.Y.0037.000000T0000Z-260323T0000Z/
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
726 PM CDT Sun Mar 22 2026

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$



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