Alert archive / Minnesota / Storm Warnings in 2021

Storm Warning 3, NWS Duluth, MN

December 15, 2021

NWS Duluth, MN issued this storm warning at Dec 15, 2021, 4:02 AM CST. It took effect at Dec 16, 2021, 12:00 AM CST. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 15, 2021, 4:02 AM CST (10:02 UTC)
In effect from
Dec 16, 2021, 12:00 AM CST
Expired
Dec 16, 2021, 11:00 AM CST
In force
11 hr
Issued by
NWS Duluth, MN

The text

As transmitted.

819 
WHUS73 KDLH 151002
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
402 AM CST Wed Dec 15 2021

LSZ140-152215-
/O.CAN.KDLH.SC.Y.0112.000000T0000Z-211215T1600Z/
/O.UPG.KDLH.SR.A.0002.211216T0800Z-211216T2200Z/
/O.NEW.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
/O.NEW.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
Grand Portage to Grand Marais MN-
402 AM CST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...
...GALE WARNING IN EFFECT FROM 9 AM TO 10 PM CST THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...For the Storm Warning, southwest winds 30 to 40 kt with 
  gusts up to 50 kt and waves 10 to 15 ft expected. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 40 kt and 
  waves 6 to 11 ft expected.

* WHERE...Grand Portage to Grand Marais MN.

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ141-152215-
/O.EXP.KDLH.SC.Y.0112.000000T0000Z-211215T1000Z/
/O.UPG.KDLH.SR.A.0002.211216T0800Z-211216T2200Z/
/O.NEW.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
/O.NEW.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
Grand Marais to Taconite Harbor MN-
402 AM CST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...
...GALE WARNING IN EFFECT FROM 9 AM TO 10 PM CST THURSDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...For the Storm Warning, southwest winds 30 to 40 kt with 
  gusts up to 50 kt and waves 6 to 11 ft expected. For the Gale 
  Warning, west winds 20 to 25 kt with gusts up to 40 kt and 
  waves 4 to 7 ft expected.

* WHERE...Grand Marais to Taconite Harbor MN.

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ146>148-150-152215-
/O.UPG.KDLH.SR.A.0002.211216T0800Z-211216T2200Z/
/O.NEW.KDLH.GL.W.0019.211216T2000Z-211217T0400Z/
/O.NEW.KDLH.SR.W.0003.211216T0600Z-211216T2000Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
402 AM CST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 2 PM CST
THURSDAY...
...GALE WARNING IN EFFECT FROM 2 PM TO 10 PM CST THURSDAY...

* WHAT...For the Storm Warning, west winds 35 to 45 kt with 
  gusts up to 60 kt and waves 8 to 13 ft expected. For the Gale 
  Warning, west winds 25 to 30 kt with gusts up to 40 kt and 
  waves 5 to 8 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 2 PM 
  CST Thursday. For the Gale Warning, from 2 PM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ142>145-152215-
/O.UPG.KDLH.SR.A.0002.211216T0800Z-211216T2200Z/
/O.NEW.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
/O.NEW.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
402 AM CST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST
THURSDAY...
...GALE WARNING IN EFFECT FROM 9 AM TO 10 PM CST THURSDAY...

* WHAT...For the Storm Warning, west winds 25 to 35 kt with 
  gusts up to 50 kt and waves 5 to 8 ft expected. For the Gale 
  Warning, west winds 15 to 25 kt with gusts up to 40 kt and 
  waves 3 to 6 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-152215-
/O.UPG.KDLH.GL.A.0012.211216T0800Z-211216T2200Z/
/O.NEW.KDLH.GL.W.0019.211216T0600Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
402 AM CST Wed Dec 15 2021

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST
THURSDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 45 kt and waves 
  1 to 3 ft expected.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...From midnight tonight to 6 PM CST Thursday.

* 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 severe conditions.

&&

$$
6 follow-up statements
554 
WHUS73 KDLH 151637
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1037 AM CST Wed Dec 15 2021

LSZ146>148-150-160445-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T2000Z/
/O.CON.KDLH.GL.W.0019.211216T2000Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1037 AM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 2 PM
CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 35 to 45 kt with
  gusts up to 55 kt and waves 10 to 15 ft expected. For the Gale
  Warning, west winds 25 to 35 kt with gusts up to 40 kt and waves
  7 to 12 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 2 PM 
  CST Thursday. For the Gale Warning, from 2 PM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140>145-160445-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
/O.CON.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
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-
Duluth MN to Port Wing WI-
1037 AM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 30 to 40 kt with
  gusts up to 50 kt and waves 11 to 16 ft expected. For the Gale
  Warning, west winds 20 to 30 kt with gusts up to 40 kt and waves
  4 to 7 ft expected.

* WHERE...Portions of Lake Superior. 

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-160445-
/O.CON.KDLH.GL.W.0019.211216T0600Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
1037 AM CST Wed Dec 15 2021

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
CST THURSDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 45 kt and 
  waves 1 to 3 ft expected.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...From midnight tonight to 6 PM CST Thursday.

* 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 severe conditions.

&&

$$

JTS
971 
WHUS73 KDLH 152111
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
311 PM CST Wed Dec 15 2021

LSZ140-141-160915-
/O.EXT.KDLH.SR.W.0003.211216T0600Z-211216T1800Z/
/O.EXT.KDLH.GL.W.0019.211216T1800Z-211217T0400Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
311 PM CST Wed Dec 15 2021

...STORM WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST
THURSDAY...
...GALE WARNING NOW IN EFFECT FROM NOON TO 10 PM CST THURSDAY...

* WHAT...For the Storm Warning, southwest winds 25 to 35 kt with 
  gusts up to 55 kt and waves 7 to 10 ft expected. For the Gale 
  Warning, west winds 15 to 25 kt with gusts up to 40 kt and 
  waves 4 to 7 ft expected.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...For the Storm Warning, from midnight tonight to noon 
  CST Thursday. For the Gale Warning, from noon to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ146>148-150-160915-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T2000Z/
/O.CON.KDLH.GL.W.0019.211216T2000Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
311 PM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 2 PM
CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 35 to 45 kt with 
  gusts up to 55 kt and waves 6 to 11 ft expected. For the Gale 
  Warning, west winds 25 to 35 kt with gusts up to 40 kt and 
  waves 6 to 9 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 2 PM 
  CST Thursday. For the Gale Warning, from 2 PM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ142>145-160915-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
/O.CON.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
311 PM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 25 to 35 kt with 
  gusts up to 60 kt and waves 4 to 7 ft expected. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 45 kt and 
  waves 3 to 6 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-160915-
/O.CON.KDLH.GL.W.0019.211216T0600Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
311 PM CST Wed Dec 15 2021

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
CST THURSDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 50 kt and 
  waves 1 to 3 ft expected.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...From midnight tonight to 6 PM CST Thursday.

* 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 severe conditions.

&&

$$
732 
WHUS73 KDLH 160322
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
922 PM CST Wed Dec 15 2021

LSZ146>148-150-161530-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T2000Z/
/O.CON.KDLH.GL.W.0019.211216T2000Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
922 PM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 2 PM CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 35 to 45 kt with 
  gusts up to 55 kt and waves 6 to 11 ft expected. For the Gale 
  Warning, west winds 25 to 35 kt with gusts up to 40 kt and 
  waves 6 to 9 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 2 PM 
  CST Thursday. For the Gale Warning, from 2 PM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ142>145-161530-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T1500Z/
/O.CON.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
922 PM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 25 to 35 kt with 
  gusts up to 60 kt and waves 4 to 7 ft expected. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 45 kt and 
  waves 3 to 6 ft expected.

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

* WHEN...For the Storm Warning, from midnight tonight to 9 AM 
  CST Thursday. For the Gale Warning, from 9 AM to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140-141-161530-
/O.CON.KDLH.SR.W.0003.211216T0600Z-211216T1800Z/
/O.CON.KDLH.GL.W.0019.211216T1800Z-211217T0400Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
922 PM CST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL NOON CST THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM NOON TO 10 PM CST
THURSDAY...

* WHAT...For the Storm Warning, southwest winds 25 to 35 kt with 
  gusts up to 55 kt and waves 7 to 10 ft expected. For the Gale 
  Warning, west winds 15 to 25 kt with gusts up to 40 kt and 
  waves 4 to 7 ft expected.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...For the Storm Warning, from midnight tonight to noon 
  CST Thursday. For the Gale Warning, from noon to 10 PM CST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-161530-
/O.CON.KDLH.GL.W.0019.211216T0600Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
922 PM CST Wed Dec 15 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THURSDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 50 kt and 
  waves 1 to 3 ft expected.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...From midnight tonight to 6 PM CST Thursday.

* 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 severe conditions.

&&

$$
737 
WHUS73 KDLH 160950
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
350 AM CST Thu Dec 16 2021

LSZ146>148-150-162200-
/O.EXT.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.EXT.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
350 AM CST Thu Dec 16 2021

...STORM WARNING NOW IN EFFECT UNTIL 11 AM CST THIS MORNING...
...GALE WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 10 PM
CST THIS EVENING...

* WHAT...For the Storm Warning, west winds 30 to 40 kt with 
  gusts up to 55 kt and waves 6 to 11 ft. For the Gale Warning, 
  west winds 25 to 35 kt with gusts up to 45 kt and waves 7 to 
  10 ft expected.

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

* WHEN...For the Storm Warning, until 11 AM CST this morning. 
  For the Gale Warning, from 11 AM this morning to 10 PM CST 
  this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140-141-162200-
/O.EXT.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.EXT.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
350 AM CST Thu Dec 16 2021

...STORM WARNING NOW IN EFFECT UNTIL 11 AM CST THIS MORNING...
...GALE WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 10 PM
CST THIS EVENING...

* WHAT...For the Storm Warning, west winds 20 to 30 kt with 
  gusts up to 55 kt and waves 4 to 7 ft. For the Gale Warning, 
  west winds 20 to 25 kt with gusts up to 45 kt and waves 4 to 7 
  ft expected.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...For the Storm Warning, until 11 AM CST this morning. 
  For the Gale Warning, from 11 AM this morning to 10 PM CST 
  this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ142>145-162200-
/O.CON.KDLH.SR.W.0003.000000T0000Z-211216T1500Z/
/O.CON.KDLH.GL.W.0019.211216T1500Z-211217T0400Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
350 AM CST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 10 PM
CST THIS EVENING...

* WHAT...For the Storm Warning, west winds 20 to 30 kt with 
  gusts up to 55 kt and waves 3 to 6 ft. For the Gale Warning, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 3 to 6 
  ft expected.

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

* WHEN...For the Storm Warning, until 9 AM CST this morning. For 
  the Gale Warning, from 9 AM this morning to 10 PM CST this 
  evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-162200-
/O.CON.KDLH.GL.W.0019.000000T0000Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
350 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...West winds 20 to 30 kt with gusts up to 50 kt and waves 
  1 to 3 ft.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...Until 6 PM CST this evening.

* 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 severe conditions.

&&

$$
466 
WHUS73 KDLH 161554
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
954 AM CST Thu Dec 16 2021

LSZ146>148-150-170400-
/O.CON.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.CON.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
954 AM CST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 11 AM CST THIS MORNING...
...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...

* WHAT...For the Storm Warning, west winds 25 to 35 kt with gusts
  up to 50 kt and waves 7 to 10 ft. For the Gale Warning, west 
  winds 25 to 35 kt with gusts up to 45 kt and waves 7 to 10 ft 
  expected.

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

* WHEN...For the Storm Warning, until 11 AM CST this morning. 
  For the Gale Warning, until 10 PM CST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ140-141-170400-
/O.CON.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.CON.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
954 AM CST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 11 AM CST THIS MORNING...
...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...

* WHAT...For the Storm Warning, west winds 20 to 25 kt with gusts
  up to 50 kt and waves 4 to 7 ft. For the Gale Warning, west 
  winds 20 to 25 kt with gusts up to 40 kt and waves 4 to 7 ft 
  expected.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...For the Storm Warning, until 11 AM CST this morning. 
  For the Gale Warning, until 10 PM CST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LSZ121-170000-
/O.CON.KDLH.GL.W.0019.000000T0000Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
954 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...West winds 20 to 25 kt with gusts up to 40 kt and waves 
  1 to 3 ft.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...Until 6 PM CST this evening.

* 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 severe conditions.

&&

$$

LSZ142>145-170400-
/O.CON.KDLH.GL.W.0019.000000T0000Z-211217T0400Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
954 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...

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

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

* WHEN...Until 10 PM CST this evening.

* 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 severe conditions.

&&

$$
563 
WHUS73 KDLH 161657
MWWDLH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
1057 AM CST Thu Dec 16 2021

LSZ146>148-150-170400-
/O.EXP.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.CON.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
1057 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...
...STORM WARNING WILL EXPIRE AT 11 AM CST THIS MORNING...

* WHAT...West winds 25 to 35 kt with gusts up to 45 kt and waves 
  7 to 10 ft expected.

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

* WHEN...Until 10 PM CST this evening.

* 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 severe conditions.

&&

$$

LSZ140-141-170400-
/O.EXP.KDLH.SR.W.0003.000000T0000Z-211216T1700Z/
/O.CON.KDLH.GL.W.0019.211216T1700Z-211217T0400Z/
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1057 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...
...STORM WARNING WILL EXPIRE AT 11 AM CST THIS MORNING...

* WHAT...West winds 20 to 25 kt with gusts up to 45 kt and waves 
  4 to 7 ft expected.

* WHERE...Grand Portage to Grand Marais MN and Grand Marais to 
  Taconite Harbor MN.

* WHEN...Until 10 PM CST this evening.

* 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 severe conditions.

&&

$$

LSZ121-170000-
/O.CON.KDLH.GL.W.0019.000000T0000Z-211217T0000Z/
Chequamegon Bay-Bayfield to Oak Point WI-
1057 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WHAT...West winds 20 to 25 kt with gusts up to 40 kt and waves 
  1 to 3 ft.

* WHERE...Chequamegon Bay-Bayfield to Oak Point WI.

* WHEN...Until 6 PM CST this evening.

* 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 severe conditions.

&&

$$

LSZ142>145-170400-
/O.CON.KDLH.GL.W.0019.000000T0000Z-211217T0400Z/
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-
1057 AM CST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...

* WHAT...West winds 15 to 25 kt with gusts up to 40 kt and waves 
  2 to 5 ft.

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

* WHEN...Until 10 PM CST this evening.

* 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 severe conditions.

&&

$$

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 15, 3:56 AM CSTDense Fog AdvisoryDLHAitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 4 more16 hr
Dec 15, 3:56 AM CSTHigh Wind WarningDLHAitkin, Carlton, Cass, Cook, Crow Wing, Lake and 2 more32 hr
Dec 15, 3:56 AM CSTWind AdvisoryDLHAitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more29 hr
Dec 15, 3:57 AM CSTWinter Weather AdvisoryDLHItasca, Koochiching, Saint Louis12 hr
Dec 15, 4:02 AM CSTGale WarningDLH42 hr
Dec 15, 3:31 PM CSTWinter Storm WarningDLHCass, Itasca, Koochiching, Saint Louis20 hr
Dec 15, 3:31 PM CSTWinter Weather AdvisoryDLHAitkin, Carlton, Cook, Crow Wing, Lake, Pine and 1 more20 hr

Nearby

Storm Warnings in Minnesota, 2021Every storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.