Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 7, NWS Marquette, MI

January 20, 2021

NWS Marquette, MI issued this small craft advisory at Jan 20, 2021, 9:58 PM EST. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Jan 20, 2021, 9:58 PM EST (02:58 UTC)
Expired
Jan 22, 2021, 4:00 PM EST
In force
42 hr
Issued by
NWS Marquette, MI

The text

As transmitted.

416 
WHUS73 KMQT 210258
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
958 PM EST Wed Jan 20 2021

LMZ221-248-250-211100-
/O.CAN.KMQT.GL.W.0001.000000T0000Z-210121T0600Z/
/O.NEW.KMQT.SC.Y.0007.210121T0258Z-210122T0600Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
958 PM EST Wed Jan 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST FRIDAY...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt and waves 
  6 to 9 ft occurring.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage, Seul Choix Point to Point Detour MI and 5NM 
  East of a line from Fairport MI to Rock Island Passage.

* WHEN...Until 1 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ162-240>242-263-211100-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0000Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
958 PM EST Wed Jan 20 2021 /858 PM CST Wed Jan 20 2021/

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST /6 PM CST/
THURSDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 40 kt and waves 
  8 to 13 ft occurring.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to 
  Grand Portage MN beyond 5NM, Ontonagon to Upper Entrance of 
  Portage Canal MI, Lake Superior from Saxon Harbor WI to Upper 
  Entrance to Portage Canal MI 5NM off shore to the US/Canadian 
  border including Isle Royale National Park, Black River to 
  Ontonagon MI and Saxon Harbor WI to Black River MI.

* WHEN...Until 7 PM EST /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.

&&

$$

LSZ243>251-264>267-211100-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
958 PM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THURSDAY...

* WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 10 to 15 ft occurring.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...Until 11 PM EST 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
255 
WHUS73 KMQT 210934
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
434 AM EST Thu Jan 21 2021

LSZ243>250-264>266-211745-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
/O.NEW.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
434 AM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST FRIDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater expected, and may 
  rapidly accumulate on vessels. For the Gale Warning, northwest 
  winds 25 to 35 kt with gusts up to 40 kt and waves 10 to 15 ft 
  occurring.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...For the Heavy Freezing Spray Warning, from 7 PM this 
  evening to 1 PM EST Friday. For the Gale Warning, until 11 PM 
  EST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ162-240>242-263-211745-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0000Z/
/O.NEW.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
434 AM EST Thu Jan 21 2021 /334 AM CST Thu Jan 21 2021/

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST /6 PM CST/ THIS
EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 7 PM EST /6 PM
CST/ THIS EVENING TO 1 PM EST /NOON CST/ FRIDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater expected, and may 
  rapidly accumulate on vessels. For the Gale Warning, northwest 
  winds 20 to 30 kt with gusts up to 35 kt and waves 7 to 10 ft 
  occurring.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to 
  Grand Portage MN beyond 5NM, Saxon Harbor WI to Black River 
  MI, Black River to Ontonagon MI, Ontonagon to Upper Entrance 
  of Portage Canal MI and Lake Superior from Saxon Harbor WI to 
  Upper Entrance to Portage Canal MI 5NM off shore to the 
  US/Canadian border including Isle Royale National Park.

* WHEN...For the Heavy Freezing Spray Warning, from 7 PM EST /6 
  PM CST/ this evening to 1 PM EST /noon CST/ Friday. For the 
  Gale Warning, until 7 PM EST /6 PM CST/ this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ251-267-211745-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
Grand Marais to Whitefish Point MI-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
434 AM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 10 to 15 ft occurring.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...Until 11 PM EST 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.

&&

$$

LMZ221-248-250-211745-
/O.CON.KMQT.SC.Y.0007.000000T0000Z-210122T0600Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
434 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST FRIDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt and waves 
  6 to 9 ft occurring.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage, Seul Choix Point to Point Detour MI and 5NM 
  East of a line from Fairport MI to Rock Island Passage.

* WHEN...Until 1 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
586 
WHUS73 KMQT 211534
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1034 AM EST Thu Jan 21 2021

LSZ243>250-264>266-212345-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
/O.CON.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
1034 AM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 40 kt and waves 7 to 12 ft occurring. For the 
  Heavy Freezing Spray Warning, heavy freezing spray at a rate 
  of 2 cm per hour or greater expected, and may rapidly 
  accumulate on vessels.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...For the Gale Warning, until 11 PM EST this evening. For 
  the Heavy Freezing Spray Warning, from 7 PM this evening to 1 
  PM EST Friday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ162-240>242-263-212345-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0000Z/
/O.CON.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
1034 AM EST Thu Jan 21 2021 /934 AM CST Thu Jan 21 2021/

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST /6 PM CST/ THIS
EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM EST
/6 PM CST/ THIS EVENING TO 1 PM EST /NOON CST/ FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and waves 5 to 8 ft occurring. For the Heavy 
  Freezing Spray Warning, heavy freezing spray at a rate of 2 cm 
  per hour or greater expected, and may rapidly accumulate on 
  vessels.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to 
  Grand Portage MN beyond 5NM, Ontonagon to Upper Entrance of 
  Portage Canal MI, Lake Superior from Saxon Harbor WI to Upper 
  Entrance to Portage Canal MI 5NM off shore to the US/Canadian 
  border including Isle Royale National Park, Black River to 
  Ontonagon MI and Saxon Harbor WI to Black River MI.

* WHEN...For the Gale Warning, until 7 PM EST /6 PM CST/ this 
  evening. For the Heavy Freezing Spray Warning, from 7 PM EST 
  /6 PM CST/ this evening to 1 PM EST /noon CST/ Friday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ251-267-212345-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
Grand Marais to Whitefish Point MI-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1034 AM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Northwest winds around 25 kt with gusts up to 35 kt and 
  waves 10 to 15 ft occurring.

* WHERE...Lake Superior from Grand Marais MI to Whitefish Point 
  MI 5NM off shore to the US/Canadian border and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 11 PM EST 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.

&&

$$

LMZ221-248-250-212345-
/O.CON.KMQT.SC.Y.0007.000000T0000Z-210122T0600Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1034 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 4 ft occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage, Green Bay North of line from Cedar River MI to Rock 
  Island Passage and Seul Choix Point to Point Detour MI.

* WHEN...Until 1 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
763 
WHUS73 KMQT 212038
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
338 PM EST Thu Jan 21 2021

LSZ243>250-264>266-220445-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
/O.CON.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
338 PM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 40 kt and waves 7 to 12 ft occurring. For the 
  Heavy Freezing Spray Warning, heavy freezing spray at a rate 
  of 2 cm per hour or greater expected, and may rapidly 
  accumulate on vessels.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...For the Gale Warning, until 11 PM EST this evening. For 
  the Heavy Freezing Spray Warning, from 7 PM this evening to 1 
  PM EST Friday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ162-240>242-263-220445-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0000Z/
/O.CON.KMQT.UP.W.0001.210122T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
338 PM EST Thu Jan 21 2021 /238 PM CST Thu Jan 21 2021/

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST /6 PM CST/ THIS
EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 7 PM EST
/6 PM CST/ THIS EVENING TO 1 PM EST /NOON CST/ FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and waves 4 to 7 ft occurring. For the Heavy 
  Freezing Spray Warning, heavy freezing spray at a rate of 2 cm 
  per hour or greater expected, and may rapidly accumulate on 
  vessels.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to 
  Grand Portage MN beyond 5NM, Ontonagon to Upper Entrance of 
  Portage Canal MI, Lake Superior from Saxon Harbor WI to Upper 
  Entrance to Portage Canal MI 5NM off shore to the US/Canadian 
  border including Isle Royale National Park, Black River to 
  Ontonagon MI and Saxon Harbor WI to Black River MI.

* WHEN...For the Gale Warning, until 7 PM EST /6 PM CST/ this 
  evening. For the Heavy Freezing Spray Warning, from 7 PM EST 
  /6 PM CST/ this evening to 1 PM EST /noon CST/ Friday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ251-267-220400-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
Grand Marais to Whitefish Point MI-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
338 PM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Northwest winds 20 to 25 kt with gusts up to 30 kt and 
  waves 8 to 11 ft occurring.

* WHERE...Lake Superior from Grand Marais MI to Whitefish Point 
  MI 5NM off shore to the US/Canadian border and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 11 PM EST 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.

&&

$$

LMZ221-248-250-220445-
/O.EXT.KMQT.SC.Y.0007.000000T0000Z-210122T1200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
338 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt 
  occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage, Green Bay North of line from Cedar River MI to Rock 
  Island Passage and Seul Choix Point to Point Detour MI.

* WHEN...Until 7 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
258 
WHUS73 KMQT 220307
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1007 PM EST Thu Jan 21 2021

LSZ243>250-264>266-221115-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
/O.CON.KMQT.UP.W.0001.000000T0000Z-210122T1800Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
1007 PM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
FRIDAY...

* WHAT...For the Heavy Freezing Spray Warning, heavy freezing 
  spray at a rate of 2 cm per hour or greater occurring, and may 
  rapidly accumulate on vessels. For the Gale Warning, north 
  winds around 25 kt with gusts up to 30 kt and waves 7 to 12 ft 
  occurring.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...For the Heavy Freezing Spray Warning, until 1 PM EST 
  Friday. For the Gale Warning, until 11 PM EST this evening.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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.

&&

$$

LSZ251-267-220415-
/O.CON.KMQT.GL.W.0001.000000T0000Z-210122T0400Z/
Grand Marais to Whitefish Point MI-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1007 PM EST Thu Jan 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...Northwest winds around 25 kt with gusts up to 30 kt and 
  waves 8 to 11 ft occurring.

* WHERE...Lake Superior from Grand Marais MI to Whitefish Point 
  MI 5NM off shore to the US/Canadian border and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 11 PM EST 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.

&&

$$

LSZ162-240>242-263-221115-
/O.CON.KMQT.UP.W.0001.000000T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
1007 PM EST Thu Jan 21 2021 /907 PM CST Thu Jan 21 2021/

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
/NOON CST/ FRIDAY...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or 
  greater occurring, and may rapidly accumulate on vessels.

* WHERE...Lake Superior west of a line from Saxon Harbor WI to 
  Grand Portage MN beyond 5NM, Ontonagon to Upper Entrance of 
  Portage Canal MI, Lake Superior from Saxon Harbor WI to Upper 
  Entrance to Portage Canal MI 5NM off shore to the US/Canadian 
  border including Isle Royale National Park, Black River to 
  Ontonagon MI and Saxon Harbor WI to Black River MI.

* WHEN...Until 1 PM EST /noon CST/ Friday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of stability.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

&&

$$

LMZ221-248-250-221115-
/O.CON.KMQT.SC.Y.0007.000000T0000Z-210122T1200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1007 PM EST Thu Jan 21 2021

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

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt 
  occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage, Green Bay North of line from Cedar River MI to Rock 
  Island Passage and Seul Choix Point to Point Detour MI.

* WHEN...Until 7 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JSS
723 
WHUS73 KMQT 220854
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
354 AM EST Fri Jan 22 2021

LSZ162-240>250-263>266-221800-
/O.CON.KMQT.UP.W.0001.000000T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
354 AM EST Fri Jan 22 2021 /254 AM CST Fri Jan 22 2021/

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
/NOON CST/ THIS AFTERNOON...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or 
  greater occurring, and may rapidly accumulate on vessels.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...Until 1 PM EST /noon CST/ this afternoon.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of stability.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

&&

$$

LMZ221-248-250-221500-
/O.EXT.KMQT.SC.Y.0007.000000T0000Z-210122T1500Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
354 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt 
  occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage, Green Bay North of line from Cedar River MI to Rock 
  Island Passage and Seul Choix Point to Point Detour MI.

* WHEN...Until 10 AM EST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
034 
WHUS73 KMQT 221432
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
932 AM EST Fri Jan 22 2021

LSZ162-240>250-263>266-221800-
/O.CON.KMQT.UP.W.0001.000000T0000Z-210122T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
932 AM EST Fri Jan 22 2021 /832 AM CST Fri Jan 22 2021/

...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 1 PM EST
/NOON CST/ THIS AFTERNOON...

* WHAT...Heavy freezing spray at a rate of 2 cm per hour or 
  greater occurring, and may rapidly accumulate on vessels.

* WHERE...Portions of Central, Eastern and Western Lake Superior.

* WHEN...Until 1 PM EST /noon CST/ this afternoon.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of stability.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

&&

$$

LMZ221-248-250-222100-
/O.EXT.KMQT.SC.Y.0007.000000T0000Z-210122T2100Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
932 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt 
  occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage, Green Bay North of line from Cedar River MI to Rock 
  Island Passage and Seul Choix Point to Point Detour MI.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Marquette, MI wrote its last area forecast discussion before this small craft advisory went out at Jan 20, 7:09 PM EST, 2 hours 49 minutes earlier.

Area forecast discussion, Jan 20, 7:09 PM EST, 2 hours 49 minutes before
Area Forecast Discussion
National Weather Service Marquette MI
709 PM EST Wed Jan 20 2021

.SHORT TERM...(This evening through Thursday)
Issued at 429 PM EST WED JAN 20 2021

MSAS analysis shows a 982 mb surface low near the Manitoba/Ontario
border this afternoon and SPC mesoanalysis depicts a 50-60 kt SW LLJ
overspreading the U.P. along a cold front. With this LLJ moving
through, southerly winds have been gusty with many sites seeing
gusts to 30 kts and even stronger winds in the usual downsloping
areas (Grand Marais to 40 kts last hour). Still thinking there will
be some patchy blowing snow in exposed areas of the east half of the
U.P. However, winds seem to be just a few kts weaker than expected.
In addition, there still could be some light snow over the far
eastern U.P. when the cold front reaches Lake Michigan and
convergence along the front aligns with the lake and gets a boost
from modest lake-based instability. However, am not impressed with
model soundings showing meager moisture depth so leaned towards the
drier CAMs for POPs and QPF this evening. This results in less than
a half inch of new snowfall. Therefore, since the new snow amounts
are lower and since blowing snow will remain patchy, opted to cancel
the earlier Winter Weather Advisory. Lakeshore Flood Advisory
remains in effect for southern Schoolcraft County as previously
scheduled given waves still expected to reach 10-12 feet.

Tonight, winds will veer to west behind the front. They will remain
gusty through the night as the core of pressure falls moves off to
the east and pressure rises of 2-4 mb/3 hr move into Minnesota and
western Lake Superior. This orientation of pressures rises and falls
means the isallobaric wind will be aligned with the pressure
gradient, especially across the Keweenaw. Model soundings show 40-45
kt gusts mixing down across the Keweenaw through the night, so have
issued a Wind Advisory for Keweenaw and northern Houghton Counties
for 03z through 17z tomorrow. These stronger winds will also cause
waves on Lake Superior to build to over 12 feet so have kept (and in
fact extended until 14z) the Lakeshore Flood Advisory for the
Keweenaw.

Tomorrow, as the system passes by to the north of Lake Superior, it
will drag a secondary cold front down across the U.P. 850 mb temps
drop from around -10 C out ahead of this Arctic front to around -18
C or colder behind it. There are minor timing differences in the
models but overall the consensus is for that front to reach the
western shore of the U.P. around 18z and the central U.P. around
21z. Therefore, temp curve tomorrow will be non-diurnal with highs
occurring in the early morning and temps then plummeting behind the
front in the afternoon. This front will be the main feature to watch
in the short-term period. Convergence along it plus lake-based
instability behind it could lead to at least a brief snow squall for
all of the U.P. Depending on where this convergence band sets up,
there could end up being a surprise band of heavy lake-effect snow.
The 12z RDPS had a strong convergence band but in an unusual NW-SE
orientation; the 12z NAM looked more realistic but then the 18z NAM
looked more like the 12z RDPS. All of this is to say that
confidence, while high overall that it will snow at least a little
bit, is low when it comes to exactly where and exactly how much. By
tomorrow evening, more typical multi-band NW flow LES will be
established across the lake-effect snow belts.

.LONG TERM...(Thursday night through Wednesday)
Issued at 411 PM EST WED JAN 20 2021

Models suggest that a the positive height anomaly near Greenland
will slowly shift to the west into northeast Canada while a ridge
prevails near or into the Gulf of Alaska. As a result, a pattern
favoring troughing into the Great Lakes will give way to blocking
with a split flow across the CONUS with a progressive northern
stream affecting the northern Great Lakes. A brief period slightly
below normal temps will give way to moderating conditions into
next week.

Thursday night, 850 mb temps to around -20C along with deeper
moisture over the area will favor a period of at least moderate LES
for northwest wind snow belts. The snow may diminish slightly
overnight with 850-700 drying and inversion heights falling to
around 5k ft.

Friday into Friday night, nw flow LES will continua with 850 mb
temps remaining in the -20C to -22C range. SLR values should also
remain at or above 20/1 with the DGZ through much of the cloud layer
over the east half. As winds diminish overnight, low level conv may
increase into Alger County.

Sat-Sun, models were in reasonable agreement that a northern stream
shrtwv and associated with inverted trough will bring an area of
snow through the region from late Sat night into Sun. Forecast 285k-
290k isentropic lift and 2 g/kg moisture available were
consistent with potential for QPF into the 0.10-0.25 inch range.
Southerly winds and 850 mb temps around -11C may also bring the
potential for some lake enhancement off of Lake Michigan.

Mon-Wed, models/ensembles suggest that the main impacts from a
southern stream shrtwv will remain well the south of Upper Michigan.
High pressure is likely to build toward the region with north to
northeast winds. At least some light LES is expected as 850 mb temps
linger around -14C.
&&

.AVIATION...(For the 00Z TAFS through 00Z Thursday evening)
Issued at 708 PM EST WED JAN 20 2021

A strong low pressure system tracks southeast across Ontario tonight
with gusty southwesterly winds veering to gusty northwesterly winds
by the end of the TAF period. At CMX, westerly gusts near or in
excess of 40 knots will result in patchy blowing snow, but
substantial vsby restrictions are not expected at this time. MVFR
cigs and VFR vsbys are expected to prevail throughout the TAF
period, but snow showers late in the TAF period will result in
brief vsby restrictions. In particular, an arctic cold front
passes through all terminals tomorrow morning with potential for a
snow squall that may briefly reduce cigs/vsbys into the IFR
category. Lake effect snow showers are expected to impact
cigs/vsbys at IWD and CMX late Thursday afternoon.
&&

.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 433 PM EST WED JAN 20 2021

Gale Warnings remain in place across the lake and have been extended
through Thursday evening for NW gales behind a second Arctic cold
front Thursday afternoon. Winds relax to around 20 kts on Friday and
remain generally at or below 20 kts through Monday.
&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
  Wind Advisory until noon EST Thursday for MIZ001-003.

  Lakeshore Flood Advisory until 9 AM EST Thursday for MIZ001-003.

  Lakeshore Flood Advisory from 7 AM to 4 PM EST Thursday for
     MIZ006-007.

  Lakeshore Flood Advisory until 1 AM EST Thursday for MIZ014.

Lake Superior...
  Gale Warning until 11 PM EST Thursday for LSZ243>251-264>267.

  Gale Warning until 7 PM EST /6 PM CST/ Thursday for LSZ162-
     240>242-263.

Lake Michigan...
  Gale Warning until 1 AM EST Thursday for LMZ221-248-250.

&&

SHORT TERM...RJC
LONG TERM...JLB
AVIATION...EK
MARINE...RJC
Hazardous weather outlook, Jan 20, 4:20 PM EST, 5 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
420 PM EST Wed Jan 20 2021

MIZ001>007-009>014-084-085-212130-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
420 PM EST Wed Jan 20 2021 /320 PM CST Wed Jan 20 2021/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Tonight

Waves on Lake Michigan of 8 to 11 feet and 5 to 7 feet on the Bay
of Green Bay this evening could lead to beach erosion and
localized lakeshore flooding for the shorelines of Schoolcraft
County. Waves on Lake Superior on the Keweenaw Peninsula on
northwest facing shorelines will approach 12 to 15 feet tonight.
See the latest lakeshore flood advisory for further details.

Wind gusts up to 40 mph are possible near Lake Michigan this
evening and in the Keweenaw Peninsula tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Moderate Lake effect snow is likely Thursday afternoon through
Friday in the northwest wind lake effect belts.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to submit any snowfall and lakeshore
flooding reports to the National Weather Service via phone, on
our website, or through Facebook or Twitter using #906wx.

LSZ162-240>251-263>267-212130-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
420 PM EST Wed Jan 20 2021 /320 PM CST Wed Jan 20 2021/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

South to southwest gales to 45 knots will shift tonight, becoming
west gales to 45 knots. See the latest Marine Weather Message and
Open Lake Forecast for more details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

West gales to 40 knots will become northwest Thursday and continue
into Thursday night. See the latest Marine Weather Message and
Open Lake Forecast for more details.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LMZ221-248-250-212130-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
420 PM EST Wed Jan 20 2021

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

Southerly gales to 45 knots are expected this evening. See the
latest Marine Weather Message and Nearshore Marine Forecast for
more details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

JLB

In the hours before

Local storm report, Jan 20, 4:04 PM EST, 5 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
404 PM EST WED JAN 20 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0253 PM     NON-TSTM WND GST ROCK OF AGES LIGHTHOUSE 47.87N 89.31W
01/20/2021  M54 MPH          LSZ263             MI   C-MAN STATION

            C-MAN STATION ROAM4, 2 W ROCK OF AGES.

0251 PM     NON-TSTM WND GST PASSAGE ISLAND LIGHTHOU 48.22N 88.37W
01/20/2021  M45 MPH          LSZ264             MI   C-MAN STATION

            C-MAN STATION PILM4, 53 NNW EAGLE HARBOR.

&&
Local storm report, Jan 20, 7:11 PM EST, 2 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MARQUETTE MI
711 PM EST WED JAN 20 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0322 PM     NON-TSTM WND GST PASSAGE ISLAND LIGHTHOU 48.22N 88.37W
01/20/2021  M53 MPH          LSZ264             MI   C-MAN STATION

            CORRECTS PREVIOUS NON-TSTM WND GST REPORT
            FROM PASSAGE ISLAND LIGHTHOUSE. C-MAN
            STATION PILM4, 53 NNW EAGLE HARBOR.

&&

EK

The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 4:34 AM ESTHeavy Freezing Spray WarningMQT32 hr
Jan 21, 2:23 PM ESTWinter Weather AdvisoryMQTAlger, Houghton, Keweenaw, Luce, Schoolcraft48 hr

Nearby

Small Craft Advisories in Michigan, 2021Every small craft advisory 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.