Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 88, NWS Marquette, MI

August 20, 2021

NWS Marquette, MI issued this small craft advisory at Aug 20, 2021, 11:26 AM EDT. It took effect at Aug 21, 2021, 1:00 AM EDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Aug 20, 2021, 11:26 AM EDT (15:26 UTC)
In effect from
Aug 21, 2021, 1:00 AM EDT
Expired
Aug 22, 2021, 8:00 AM EDT
In force
31 hr
Issued by
NWS Marquette, MI

The text

As transmitted.

855 
WHUS73 KMQT 201526
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1126 AM EDT Fri Aug 20 2021

LSZ240>242-202330-
/O.NEW.KMQT.SC.Y.0088.210821T0500Z-210821T1200Z/
Saxon Harbor WI to Black River MI-Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
1126 AM EDT Fri Aug 20 2021 /1026 AM CDT Fri Aug 20 2021/

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT /MIDNIGHT CDT/ TO
8 AM EDT /7 AM CDT/ SATURDAY...

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

* WHERE...Saxon Harbor WI to Black River MI, Black River to 
  Ontonagon MI and Ontonagon to Upper Entrance of Portage Canal 
  MI.

* WHEN...From 1 AM EDT /midnight CDT/ to 8 AM EDT /7 AM CDT/ 
  Saturday.

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

* ADDITIONAL DETAILS...This small craft could be extended as a
  cold front moving in from the west could bring additional wind
  gusts in excess of 25 knots later in the day Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

TAP
7 follow-up statements
026 
WHUS73 KMQT 202045
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
445 PM EDT Fri Aug 20 2021

LMZ248-250-210445-
/O.NEW.KMQT.SC.Y.0089.210821T1400Z-210822T0000Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT
SATURDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 2 to 4 ft expected.

* WHERE...Seul Choix Point to Point Detour MI and 5NM East of a 
  line from Fairport MI to Rock Island Passage.

* WHEN...From 10 AM to 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-210445-
/O.NEW.KMQT.SC.Y.0089.210821T1400Z-210821T2000Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 4 PM EDT
SATURDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 3 ft expected.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage.

* WHEN...From 10 AM to 4 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-210445-
/O.NEW.KMQT.SC.Y.0089.210821T1800Z-210822T1000Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM SATURDAY TO 6 AM EDT
SUNDAY...

* WHAT...West winds 15 to 25 kt with a few gusts as high as 35 kt
  and waves 6 to 9 ft expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Eagle River to Manitou Island MI and Manitou Island to Point 
  Isabelle MI.

* WHEN...From 2 PM Saturday to 6 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-210445-
/O.NEW.KMQT.SC.Y.0089.210821T2000Z-210822T0400Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM SATURDAY TO MIDNIGHT
EDT SATURDAY NIGHT...

* WHAT...West winds 15 to 20 kt with gusts up to 30 kt and waves 
  1 to 2 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 4 PM Saturday to midnight EDT Saturday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-210445-
/O.NEW.KMQT.SC.Y.0089.210821T1400Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM SATURDAY TO 2 PM EDT
SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 
  3 to 6 ft expected.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...From 10 AM Saturday to 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ247-210445-
/O.EXB.KMQT.SC.Y.0088.210821T1000Z-210822T0400Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT
EDT SATURDAY NIGHT...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 1 to 3 ft expected.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...From 6 AM Saturday to midnight EDT Saturday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-210445-
/O.EXB.KMQT.SC.Y.0088.210821T1000Z-210822T1200Z/
Huron Islands to Marquette MI-
445 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 8 AM EDT
SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 4 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...From 6 AM Saturday to 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-210445-
/O.EXT.KMQT.SC.Y.0088.210821T0500Z-210822T0000Z/
Saxon Harbor WI to Black River MI-
445 PM EDT Fri Aug 20 2021 /345 PM CDT Fri Aug 20 2021/

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM EDT /MIDNIGHT
CDT/ TO 8 PM EDT /7 PM CDT/ SATURDAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and 
  waves 1 to 4 ft expected.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...From 1 AM EDT /midnight CDT/ to 8 PM EDT /7 PM CDT/ 
  Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242-210445-
/O.EXT.KMQT.SC.Y.0088.210821T0500Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
445 PM EDT Fri Aug 20 2021 /345 PM CDT Fri Aug 20 2021/

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM EDT /MIDNIGHT
CDT/ SATURDAY TO 4 AM EDT /3 AM CDT/ SUNDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 5 to 8 ft expected.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...From 1 AM EDT /midnight CDT/ Saturday to 4 AM EDT /3 AM 
  CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
925 
WHUS73 KMQT 210152
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
952 PM EDT Fri Aug 20 2021

LMZ248-250-211000-
/O.CON.KMQT.SC.Y.0089.210821T1400Z-210822T0000Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT
SATURDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 2 to 4 ft expected.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage and Seul Choix Point to Point Detour MI.

* WHEN...From 10 AM to 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-211000-
/O.CON.KMQT.SC.Y.0089.210821T1400Z-210821T2000Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 4 PM EDT
SATURDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 3 ft expected.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage.

* WHEN...From 10 AM to 4 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-211000-
/O.CON.KMQT.SC.Y.0088.210821T0500Z-210822T0000Z/
Saxon Harbor WI to Black River MI-
952 PM EDT Fri Aug 20 2021 /852 PM CDT Fri Aug 20 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM EDT /MIDNIGHT
CDT/ TO 8 PM EDT /7 PM CDT/ SATURDAY...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and 
  waves 1 to 4 ft expected.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...From 1 AM EDT /midnight CDT/ to 8 PM EDT /7 PM CDT/ 
  Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242-211000-
/O.CON.KMQT.SC.Y.0088.210821T0500Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
952 PM EDT Fri Aug 20 2021 /852 PM CDT Fri Aug 20 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM EDT /MIDNIGHT
CDT/ SATURDAY TO 4 AM EDT /3 AM CDT/ SUNDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 5 to 8 ft expected.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...From 1 AM EDT /midnight CDT/ Saturday to 4 AM EDT /3 AM 
  CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-211000-
/O.CON.KMQT.SC.Y.0089.210821T1800Z-210822T1000Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM SATURDAY TO
6 AM EDT SUNDAY...

* WHAT...West winds 15 to 25 kt with a few gusts as high as 35 kt
  and waves 6 to 9 ft expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Eagle River to Manitou Island MI and Manitou Island to Point 
  Isabelle MI.

* WHEN...From 2 PM Saturday to 6 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ247-211000-
/O.CON.KMQT.SC.Y.0088.210821T1000Z-210822T0400Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY TO
MIDNIGHT EDT SATURDAY NIGHT...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 1 to 3 ft expected.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...From 6 AM Saturday to midnight EDT Saturday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-211000-
/O.CON.KMQT.SC.Y.0089.210821T2000Z-210822T0400Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM SATURDAY TO
MIDNIGHT EDT SATURDAY NIGHT...

* WHAT...West winds 15 to 20 kt with gusts up to 30 kt and waves 
  1 to 2 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 4 PM Saturday to midnight EDT Saturday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-211000-
/O.CON.KMQT.SC.Y.0088.210821T1000Z-210822T1200Z/
Huron Islands to Marquette MI-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM SATURDAY TO
8 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 4 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...From 6 AM Saturday to 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-211000-
/O.CON.KMQT.SC.Y.0089.210821T1400Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
952 PM EDT Fri Aug 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO
2 PM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 
  3 to 6 ft expected.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...From 10 AM Saturday to 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
264 
WHUS73 KMQT 210824
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
424 AM EDT Sat Aug 21 2021

LMZ248-250-211630-
/O.EXT.KMQT.SC.Y.0089.210821T1400Z-210822T0200Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO
10 PM EDT THIS EVENING...

* WHAT...South to southwest winds 10 to 20 kt with gusts up to 25
  kt and waves 2 to 4 ft expected.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage and Seul Choix Point to Point Detour MI.

* WHEN...From 10 AM this morning to 10 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-211630-
/O.EXT.KMQT.SC.Y.0089.210821T1400Z-210821T2200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO
6 PM EDT THIS EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 3 ft expected.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage.

* WHEN...From 10 AM this morning to 6 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-211630-
/O.EXT.KMQT.SC.Y.0088.000000T0000Z-210822T0200Z/
Saxon Harbor WI to Black River MI-
424 AM EDT Sat Aug 21 2021 /324 AM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt
  becoming west and waves 1 to 4 ft occurring.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...Until 10 PM EDT /9 PM CDT/ this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-211630-
/O.EXT.KMQT.SC.Y.0089.210821T0824Z-210822T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT SUNDAY...

* WHAT...South winds 15 to 25 knots becoming west 15 to 25 kt 
  with a few gale force gusts up to 35 kt and waves 6 to 9 ft 
  occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Eagle River to Manitou Island MI and Manitou Island to Point 
  Isabelle MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-211630-
/O.EXT.KMQT.SC.Y.0089.210821T1900Z-210822T0600Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO
2 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with a few gale force gusts up to
  35 kt and waves up to 3 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 3 PM this afternoon to 2 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-211630-
/O.EXT.KMQT.SC.Y.0088.210821T1300Z-210822T1200Z/
Huron Islands to Marquette MI-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
8 AM EDT SUNDAY...

* WHAT...South winds 15 to 25 knots becoming west winds 15 to 25 
  kt with gusts up to 30 kt and waves 2 to 5 ft expected.

* WHERE...Huron Islands to Marquette MI.

* WHEN...From 9 AM this morning to 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ247-211630-
/O.EXT.KMQT.SC.Y.0088.210821T1900Z-210822T0400Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT EDT TONIGHT...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 3 ft expected.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...From 3 PM this afternoon to midnight EDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242-211630-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
424 AM EDT Sat Aug 21 2021 /324 AM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT /3 AM
CDT/ SUNDAY...

* WHAT...South winds 15 to 25 knots becoming west winds 15 to 25
  kt with a few gale force gusts up to 35 kt and waves 5 to 8 ft 
  occurring.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...Until 4 AM EDT /3 AM CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-211630-
/O.CON.KMQT.SC.Y.0089.210821T1400Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
424 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 2 PM EDT SUNDAY...

* WHAT...South winds 10 to 20 knots with gusts up to 25 knots
  becoming northwest winds 10 to 20 kt with gusts up to 30 kt and
  waves 4 to 7 ft expected.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...From 10 AM this morning to 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
533 
WHUS73 KMQT 211418
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1018 AM EDT Sat Aug 21 2021

LMZ248-250-212230-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T0200Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1018 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 4 ft occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage and Seul Choix Point to Point Detour MI.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-212200-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210821T2200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1018 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and 
  waves 1 to 3 ft occurring.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-212230-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0200Z/
Saxon Harbor WI to Black River MI-
1018 AM EDT Sat Aug 21 2021 /918 AM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM
CDT/ THIS EVENING...

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 
  1 to 4 ft occurring.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...Until 10 PM EDT /9 PM CDT/ this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242-212230-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
1018 AM EDT Sat Aug 21 2021 /918 AM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT /3 AM
CDT/ SUNDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and waves 
  5 to 8 ft occurring.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...Until 4 AM EDT /3 AM CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-212230-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1018 AM EDT Sat Aug 21 2021

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

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and waves 
  6 to 9 ft occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Eagle River to Manitou Island MI and Manitou Island to Point 
  Isabelle MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-212230-
/O.CON.KMQT.SC.Y.0089.210821T1900Z-210822T0600Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
1018 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 2 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 35 kt and waves 
  up to 3 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 3 PM this afternoon to 2 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-212230-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T1200Z/
Huron Islands to Marquette MI-
1018 AM EDT Sat Aug 21 2021

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

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 
  2 to 5 ft occurring.

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ247-212230-
/O.CON.KMQT.SC.Y.0088.210821T1900Z-210822T0400Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1018 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT EDT TONIGHT...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 3 ft expected.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...From 3 PM this afternoon to midnight EDT tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-212230-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
1018 AM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...Until 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Voss
129 
WHUS73 KMQT 212008
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
408 PM EDT Sat Aug 21 2021

LSZ247-220415-
/O.EXT.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
408 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 4 ft occurring.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...Until 4 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-250-220200-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T0200Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
408 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt and 
  waves 2 to 4 ft occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island 
  Passage and Seul Choix Point to Point Detour MI.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ221-212200-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210821T2200Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-
408 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...South winds 10 to 15 kt with gusts up to 20 kt and 
  waves 1 to 3 ft occurring.

* WHERE...Green Bay North of line from Cedar River MI to Rock 
  Island Passage.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ240-220200-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0200Z/
Saxon Harbor WI to Black River MI-
408 PM EDT Sat Aug 21 2021 /308 PM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM
CDT/ THIS EVENING...

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 
  2 to 4 ft occurring.

* WHERE...Saxon Harbor WI to Black River MI.

* WHEN...Until 10 PM EDT /9 PM CDT/ this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ241-242-220415-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
408 PM EDT Sat Aug 21 2021 /308 PM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT /3 AM
CDT/ SUNDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and waves 
  5 to 8 ft occurring.

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...Until 4 AM EDT /3 AM CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-220415-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
408 PM EDT Sat Aug 21 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 7 to 10 ft occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Eagle River to Manitou Island MI and Manitou Island to Point 
  Isabelle MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-220415-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T0600Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
408 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 35 kt and waves 
  1 to 3 ft occurring.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...Until 2 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-220415-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T1200Z/
Huron Islands to Marquette MI-
408 PM EDT Sat Aug 21 2021

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 5 ft occurring.

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-220415-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
408 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...Until 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
041 
WHUS73 KMQT 220201
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1001 PM EDT Sat Aug 21 2021

LMZ248-250-220315-
/O.EXP.KMQT.SC.Y.0089.000000T0000Z-210822T0200Z/
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1001 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves have subsided below advisory criteria. Therefore,
the Small Craft Advisory has been allowed to expired.

$$

LSZ240-220315-
/O.EXP.KMQT.SC.Y.0088.000000T0000Z-210822T0200Z/
Saxon Harbor WI to Black River MI-
1001 PM EDT Sat Aug 21 2021 /901 PM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves have subsided below advisory criteria. Therefore,
the Small Craft Advisory has been allowed to expired.

$$

LSZ241-242-220800-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
1001 PM EDT Sat Aug 21 2021 /901 PM CDT Sat Aug 21 2021/

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT /3 AM
CDT/ SUNDAY...

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

* WHERE...Ontonagon to Upper Entrance of Portage Canal MI and 
  Black River to Ontonagon MI.

* WHEN...Until 4 AM EDT /3 AM CDT/ Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243>245-221015-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1001 PM EDT Sat Aug 21 2021

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  waves 6 to 9 ft occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Manitou Island to Point Isabelle MI and Eagle River to Manitou 
  Island MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-220600-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T0600Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
1001 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 2 ft occurring.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...Until 2 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ247-220800-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1001 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT SUNDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  up to 3 ft occurring.

* WHERE...Lower Entrance of Portage Canal To Huron Islands MI 
  Including Keweenaw and Huron Bays.

* WHEN...Until 4 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-221015-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T1200Z/
Huron Islands to Marquette MI-
1001 PM EDT Sat Aug 21 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 2 to 5 ft occurring.

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 8 AM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ249>251-221015-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
1001 PM EDT Sat Aug 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT SUNDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...Until 2 PM EDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
739 
WHUS73 KMQT 220818
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
418 AM EDT Sun Aug 22 2021

LSZ241-242-247-220930-
/O.EXP.KMQT.SC.Y.0088.000000T0000Z-210822T0800Z/
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
418 AM EDT Sun Aug 22 2021 /318 AM CDT Sun Aug 22 2021/

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves have subsided below advisory criteria. Therefore,
the Small Craft Advisory has been allowed to expired.

$$

LSZ243>245-221200-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1200Z/
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
418 AM EDT Sun Aug 22 2021

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

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

* WHERE...Upper Entrance of Portage Canal to Eagle River MI, 
  Manitou Island to Point Isabelle MI and Eagle River to Manitou 
  Island MI.

* WHEN...Until 8 AM EDT 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.

&&

$$

LSZ248-221200-
/O.CON.KMQT.SC.Y.0088.000000T0000Z-210822T1200Z/
Huron Islands to Marquette MI-
418 AM EDT Sun Aug 22 2021

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

* WHAT...Northwest winds 15 to 20 kt and waves 2 to 5 ft 
  occurring.

* WHERE...Huron Islands to Marquette MI.

* WHEN...Until 8 AM EDT 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.

&&

$$

LSZ249>251-221630-
/O.CON.KMQT.SC.Y.0089.000000T0000Z-210822T1800Z/
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
418 AM EDT Sun Aug 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...North winds 10 to 20 kt and waves 3 to 6 ft occurring.

* WHERE...Marquette to Munising MI, Munising to Grand Marais MI 
  and Grand Marais to Whitefish Point MI.

* WHEN...Until 2 PM EDT 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 Aug 20, 7:31 AM EDT, 3 hours 55 minutes earlier.

Area forecast discussion, Aug 20, 7:31 AM EDT, 3 hours 55 minutes before
Area Forecast Discussion
National Weather Service Marquette MI
731 AM EDT Fri Aug 20 2021

.SHORT TERM...(Today and tonight)
Issued at 429 AM EDT FRI AUG 20 2021

Overnight conditions remain very warm across Upper Michigan as we
continue to remain in a stagnant weather pattern. Surface
temperatures have once again remained elevated, with several
locations in the lower 60s to lower 70s. A couple of areas across
the interior where clear skies have prevailed do show temperatures
down to the middle 50s. SAW and ISQ have observed patchy fog
overnight, with reduced visibilities at times as well. Satellite
imagery shows that very dry air is present in the middle and upper
levels of the atmosphere over the Great Lakes. The elongated upper
level ridge axis remains firmly in place over Upper Michigan as of
8Z this morning. Further upstream, we would be remiss to not mention
the meandering upper level longwave trough and attendant upper level
low that has moved only a few hundred miles the last 24 hours. This
upper level trough will continue its trek toward the ND/MN and
western Ontario the next 24 hours.

Before discussing the upcoming weather shift, we can focus on the
last very warm day for this week across the majority of Upper
Michigan. 850mb temperatures continue to be anomalously warm for
this time of year, in the 18C-20C range by this afternoon. The weak
southerly flow will allow for continued surges of WAA to mix down to
the surface. An inverted-V sounding profile for several locations
depicts mixing from the 750mb-800mb to surface this afternoon near
18Z onwards. Fortunately, winds at this height are not too strong ~
10-15 knots. This will result in surface temperatures warming
quickly as the column continues to be dry aloft. A few fair weather
cumulus clouds may be spotted with the naked eye today, but for most
it will be a mostly clear, hot summer day. Areas along the Lake
Superior shoreline will see downward momentum transport of the
winds...causing localized breezy conditions at times, where areas
could briefly see afternoon highs in the upper 80s to lower 90s. Dew
points will be slowly rising once again through the day, making it
muggy for several locations as the middle to upper 60s will become
apparent. The one caveat to the very warm temperatures will be the
weak lake breeze that pushes inland over the Keweenaw. Confidence in
this happening in locations in and around Marquette are lower, but
the possibility of se flow making it onshore could cause the
afternoon highs to be limited to the middle 80s for Marquette
County. Alger and Luce County could also see an onshore lake breeze
limit temperatures during the afternoon to the middle 80s also. The
areas that will have the mildest weather will continue to be along
the Lake Michigan shoreline, where middle to upper 70s is
anticipated for a daytime high.

Tonight will start off dry, muggy, and very warm. Areas adjacent to
lake Superior could see localized overnight lows in the lower to
middle 70s due to the strengthening southerly winds. The interior
areas are likely to remain in the 60s overnight. Areas furthest to
the west from IWD to CMX will see the uptick in wind gusts between
sunset and midnight local time Friday night. Wind gusts will pick up
across the remainder of the west half of Upper Michigan from
midnight to sunrise on Saturday, with 15-25mph wind gusts becoming
common. This will be in response to the quick intensification of the
surface low over the Dakotas on Friday associated with the upper
level troughing over the Intermountain West. This surface low will
deepen quickly as it treks to the northeast over the Dakotas into
Manitoba/Western Ontario Friday evening into early Saturday. The
tightening pressure gradient from the surface high pressure over
Upper Michigan, and the surface low further upstream will cause the
winds to increase locally. Showers and thunderstorms will develop
along a surface cold front further upstream, but the trajectory of
the best moisture and instability will remain outside of our cwa
early Saturday. Hi-res CAMs do show isolated thundershowers making
its way to our western borders between 9Z-12Z Saturday for the IWD
to CMX regions, but quickly dissipating as the weather disturbance
moves east. The most likely scenario for Friday night into early
Saturday is for most areas to remain mostly dry across the west
half, with a few rain showers possible toward sunrise between IWD to
CMX, along with breezy wind conditions. Overall, expect a warm,
breezy, and muggy Friday night ahead of the highly anticipated cold
front on Saturday.

.LONG TERM...(Saturday through Thursday)
Issued at 458 AM EDT FRI AUG 20 2021

Medium range guidance is in decent agreement on the large scale
pattern thru next week and into the final weekend of Aug. Mean
troffing is expected across western Canada, extending into the
western U.S. at times. The troffing will have greatest amplitude
thru the upcoming weekend, and a brief, temporary break in the trof
will occur at the middle of next week. Downstream, ridging/positive
height anomalies will prevail across eastern Canada, though a
progressive ridge reaching western Canada midweek will allow for
more height falls/troffing to swing across eastern Canada late week.
However, it is noted that models have overall been trending weaker
with the trof/height falls reaching eastern Canada. For Upper MI,
the evolution of the large scale pattern will favor temps mostly on
the warm side of normal with the warmest day likely to be today. A
couple of passing shortwaves will bring modest cooling at times thru
the first half of next week. It had been looking like there would be
a decent cool down late next week in association with the trof
reaching eastern Canada, but the aforementioned weaker trends
suggest cooling will be more modest. As for pcpn, dry weather has
dominated across the fcst area for about a week now, so pcpn would
be welcomed. Unfortunately, the first 2 shortwaves ejecting from the
mean western trof will be lifting ne as they approach Upper MI,
resulting in best forcing/height falls passing by to the w and n of
the fcst area. While some pcpn will occur with these waves (Sat and
late Sun night/Mon), widespread and/or significant pcpn is very
unlikely. In fact, there may be quite a few locations that don't see
any pcpn with either wave, particularly with the second. Third
shortwave arriving during the middle portion of next week will bring
the next opportunity of pcpn.

Beginning Sat, a vigorous shortwave will lift from far se Manitoba
Sat morning to Hudson Bay by Sun morning. With best deep layer
forcing passing well off to the nw of here, pcpn potential along the
associated cold front will be more limited as it crosses the fcst
area. With the cold front reaching western Upper MI later in the
morning and progressing across the central and e in the aftn and
evening, there will be some buildup of instability to support sct
convective development. Added convergence along the front provided
by the lake breeze components will also be supportive. Overall,
models suggest MLCAPE will increase to perhaps as high as around
1000j/kg with deep layer shear probably in the 25-30kt range,
marginal for organized storm development. At this point, not
expecting any svr storms. With a narrow band of precipitable water
up around 1.9 inches, or 180-200pct of normal, just ahead of the
cold front and with warm cloud depths of 12-14kft, expect brief, hvy
downpours with any of the storms that occur Sat. Will be very humid
with dwpts well into the 60s to lwr 70s F until fropa. Dwpts should
begin to fall w in the aftn. Highs should range from the upper 70s
to mid 80s F. Expect breezy s winds gusting up to 25-30mph ahead of
the cold front. Postfrontal westerly winds will probably gust to at
least 35mph on the Keweenaw as incoming 4-5mb/3hr pres rises will
provide an isallobaric wind component aligned with the gradient
wind. There is the potential to tap winds of 35-40kt if clouds break
enough for daytime heating to build mixed layer and/or sufficient
caa arrives. Will be something to monitor. The southerly winds up
Lake MI in advance of the cold front will build waves sufficiently
high for at least a mdt swim risk along the Lake MI beaches of
Schoolcraft County on Sat.

In the wake of the cold front, high pres will build into the Upper
Lakes Sat night/Sun, bringing cooler and drier air into the area.
Temps Sat night should slip down into the upper 40s over the
interior w with 50s F mostly prevailing elsewhere. Sun will be a
comfortable day with high temps generally 70-75F and dwpts down into
the upper 40s to mid 50s F.

Next shortwave moving across the Northern Plains on Sun will weaken
as it lifts into northern Ontario by Mon morning. Models show a
weaker pcpn signal with this weakening wave compared to the wave on
Sat. Although the GFS does build MLCAPE to around 1000j/kg Mon ahead
of the front, warm nose aloft/fairly significant CIN across much of
the area may prevent convective development on Mon. In the end, the
better chc of pcpn with this wave should be late Sun night/early Mon
over the w in association with an approaching, but weakening low-
level jet. Otherwise, nothing more than low chc/schc pops are
warranted late Sun night/Mon.

There is more uncertainty with the next shortwave expected midweek
due to the overall weaker trends in medium range guidance. Models
have been generally suggesting pcpn may tend to split around Upper
MI with the more significant convection passing by to the s along
the instability gradient while shra associated with better forcing
pass by to the n. For now, broad brush lower end chc will be
utilized Tue night/Wed given the uncertainty at this time range. Dry
weather should follow Thu and then the next shortwave/pcpn chc may
arrive on Fri.
&&

.AVIATION...(For the 12Z TAFS through 12Z Saturday morning)
Issued at 731 AM EDT FRI AUG 20 2021

VFR conditions can be expected for all terminals through the period.
However, MIFG remains at KSAW this morning prior to 12Z. This will
quickly burn off due to the increased sun angle, so did not keep it
in the TAF issuance as a result. Southerly winds will continue
today, although they will be less than 10 knots through 0Z. A strong
surface low pressure will develop to our northwest through the day,
causing an increase in wind gusts from approximately 2Z tonight
through Saturday for KCMX and KIWD. LLWS will become present late
tonight...WS020/19045KT for KIWD and WS015/20030KT for KCMX near 6Z
and 8Z respectively.

&&

.MARINE...(For the 4 AM Lake Superior forecast issuance)
Issued at 324 AM EDT FRI AUG 20 2021

Winds will remain below 20 knots across the lake from this morning
through late tonight. A surface trough approaches the lake early
Saturday morning, resulting in southerly wind gusts to increase to
around 20-25 knots. As a cold front associated with the trough moves
through Saturday afternoon and evening, expect the winds to become
westerly right behind the front Saturday afternoon, before becoming
northwesterly Saturday night. As the front sweeps across the lake
from west to east, expect wind gusts of 25-30 knots to occur
Saturday afternoon and evening. A few gale force gusts are possible.
Behind the cold front Sunday morning, expect winds to become 20
knots or less. Wind speeds should remain 20 knots or less for the
remainder of next week.
&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
None.
Lake Superior...
None.
Lake Michigan...
None.
&&

SHORT TERM...BW
LONG TERM...Rolfson
AVIATION...BW
MARINE...BW
Hazardous weather outlook, Aug 20, 5:04 AM EDT, 6 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
504 AM EDT Fri Aug 20 2021

MIZ002-009-211200-
Ontonagon-Gogebic-
504 AM EDT Fri Aug 20 2021 /404 AM CDT Fri Aug 20 2021/

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

.DAY ONE...Today and Tonight

There is a slight chance of thunderstorms late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorms are possible Saturday morning.

.SPOTTER INFORMATION STATEMENT...

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

MIZ001-003>007-010>014-084-085-211200-
Keweenaw-Northern Houghton-Baraga-Marquette-Alger-Luce-Iron-
Dickinson-Menominee-Delta-Southern Schoolcraft-Southern Houghton-
Northern Schoolcraft-
504 AM EDT Fri Aug 20 2021 /404 AM CDT Fri Aug 20 2021/

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorms are possible Saturday.

There is a moderate swim risk for the Lake Michigan beaches of
Schoolcraft County on Saturday.

.SPOTTER INFORMATION STATEMENT...

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

LSZ162-240>251-263>267-211200-
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-
504 AM EDT Fri Aug 20 2021 /404 AM CDT Fri Aug 20 2021/

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

.DAY ONE...Today and Tonight

There is a chance of thunderstorms over western Lake Superior late
tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorms are possible Saturday.

.SPOTTER INFORMATION STATEMENT...

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

LMZ221-248-250-211200-
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-
504 AM EDT Fri Aug 20 2021

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorms are possible Saturday.

.SPOTTER INFORMATION STATEMENT...

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

Rolfson

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 4:45 PM EDTSmall Craft AdvisoryMQT45 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.