Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 7, NWS Gaylord, MI

January 20, 2021

NWS Gaylord, MI issued this small craft advisory at Jan 20, 2021, 3:31 AM EST. It took effect at Jan 20, 2021, 12:00 PM EST. It was in force for 63 hr.

The area

The counties it named.

The facts

Issued
Jan 20, 2021, 3:31 AM EST (08:31 UTC)
In effect from
Jan 20, 2021, 12:00 PM EST
Expired
Jan 23, 2021, 3:14 AM EST
In force
63 hr
Issued by
NWS Gaylord, MI

The text

As transmitted.

699 
WHUS73 KAPX 200831
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 AM EST Wed Jan 20 2021

LHZ348-349-201700-
/O.UPG.KAPX.GL.A.0003.210121T0000Z-210121T1200Z/
/O.EXB.KAPX.GL.W.0001.210121T0000Z-210121T1200Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
331 AM EST Wed Jan 20 2021

...GALE WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 AM EST
THURSDAY...

* WHAT...Highest gusts up to 40 kt and highest waves around 7 
  feet expected.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...From 7 PM this evening to 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ345-LMZ323-341-342-344>346-201700-
/O.CON.KAPX.GL.W.0001.210120T2000Z-210121T0700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
331 AM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
2 AM EST THURSDAY...

* WHAT...Highest gusts up to 45 kt and highest waves around 14 
  feet expected.

* WHERE...Portions of Lake Michigan and Lake Huron. 

* WHEN...From 3 PM this afternoon to 2 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ346-347-201700-
/O.NEW.KAPX.SC.Y.0007.210120T1700Z-210121T2300Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
331 AM EST Wed Jan 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EST
THURSDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet expected.

* WHERE...St Ignace to False Detour Channel and 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island.

* WHEN...From noon today to 6 PM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
14 follow-up statements
022 
WHUS73 KAPX 201527
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1027 AM EST Wed Jan 20 2021

LHZ348-349-202300-
/O.CON.KAPX.GL.W.0001.210121T0000Z-210121T1200Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1027 AM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
EST THURSDAY...

* WHAT...Highest gusts up to 40 kt and highest waves around 7 
  feet expected.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...From 7 PM this evening to 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ345-LMZ323-341-342-344>346-202300-
/O.CON.KAPX.GL.W.0001.210120T2000Z-210121T0700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1027 AM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
2 AM EST THURSDAY...

* WHAT...Highest gusts up to 45 kt and highest waves around 14 
  feet expected.

* WHERE...Portions of Lake Michigan and Lake Huron. 

* WHEN...From 3 PM this afternoon to 2 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ346-347-202300-
/O.CON.KAPX.SC.Y.0007.210120T1700Z-210121T2300Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
1027 AM EST Wed Jan 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
THURSDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet expected.

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI 
  including Bois Blanc Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
084 
WHUS73 KAPX 202047
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
347 PM EST Wed Jan 20 2021

LHZ348-349-210500-
/O.CON.KAPX.GL.W.0001.210121T0000Z-210121T1200Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
347 PM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
EST THURSDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet expected.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...From 7 PM this evening to 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ345-LMZ323-341-342-344>346-210500-
/O.CON.KAPX.GL.W.0001.000000T0000Z-210121T0700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
347 PM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 2 AM EST THURSDAY...

* WHAT...Highest gusts up to 40 kt and highest waves around 14 
  feet.

* WHERE...Portions of Lake Michigan and Lake Huron. 

* WHEN...Until 2 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ346-347-210500-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210121T2300Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
347 PM EST Wed Jan 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
THURSDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 7 
  feet.

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI 
  including Bois Blanc Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
046 
WHUS73 KAPX 210259
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
959 PM EST Wed Jan 20 2021

LHZ348-349-211100-
/O.CON.KAPX.GL.W.0001.000000T0000Z-210121T1200Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
959 PM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ345-LMZ323-341-342-344>346-210700-
/O.CON.KAPX.GL.W.0001.000000T0000Z-210121T0700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
959 PM EST Wed Jan 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 2 AM EST THURSDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 13 
  feet.

* WHERE...Portions of Lake Michigan and Lake Huron. 

* WHEN...Until 2 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous highest 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.

&&

$$

LHZ346-347-211100-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210121T2300Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
959 PM EST Wed Jan 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
THURSDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 7 
  feet.

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI 
  including Bois Blanc Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM EST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
243 
WHUS73 KAPX 210655
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
155 AM EST Thu Jan 21 2021

LHZ348-349-211600-
/O.CAN.KAPX.GL.W.0001.000000T0000Z-210121T1200Z/
/O.EXB.KAPX.SC.Y.0007.000000T0000Z-210122T1100Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
155 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST FRIDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 6 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.

&&

$$

LHZ345-211600-
/O.CAN.KAPX.GL.W.0001.000000T0000Z-210121T0700Z/
/O.EXB.KAPX.SC.Y.0007.000000T0000Z-210122T1100Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
155 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 6 
  feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...Until 6 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.

&&

$$

LMZ323-341-342-344>346-211600-
/O.CAN.KAPX.GL.W.0001.000000T0000Z-210121T0700Z/
/O.EXB.KAPX.SC.Y.0007.000000T0000Z-210122T1100Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
155 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST FRIDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 10 
  feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 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.

&&

$$

LHZ346-347-211600-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210122T1100Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
155 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST FRIDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet.

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI 
  including Bois Blanc Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 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.

&&

$$
612 
WHUS73 KAPX 210943
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
443 AM EST Thu Jan 21 2021

LHZ345>349-211700-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
443 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island, Sturgeon Pt 
  to Alabaster MI, Straits of Mackinac within 5 nm of Mackinac 
  Bridge including Mackinac Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM 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.

&&

$$

LMZ323-341-342-344>346-211700-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
443 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 9 
  feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 PM 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.

&&

$$
270 
WHUS73 KAPX 211447
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
947 AM EST Thu Jan 21 2021

LHZ345>349-220000-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
947 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island, Sturgeon Pt 
  to Alabaster MI, Straits of Mackinac within 5 nm of Mackinac 
  Bridge including Mackinac Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM 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.

&&

$$

LMZ323-341-342-344>346-220000-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
947 AM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 9 
  feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 6 PM 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.

&&

$$
030 
WHUS73 KAPX 212000
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
300 PM EST Thu Jan 21 2021

LHZ345>349-220500-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
300 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island, Sturgeon Pt 
  to Alabaster MI, Straits of Mackinac within 5 nm of Mackinac 
  Bridge including Mackinac Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM 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.

&&

$$

LMZ323-341-342-344>346-220500-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
300 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt and highest waves around 9 
  feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 6 PM 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.

&&

$$
623 
WHUS73 KAPX 212025
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
325 PM EST Thu Jan 21 2021

LHZ345>349-220430-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
325 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 7 feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island, Sturgeon Pt 
  to Alabaster MI, Straits of Mackinac within 5 nm of Mackinac 
  Bridge including Mackinac Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM 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.

&&

$$

LMZ323-341-342-344>346-220430-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
325 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 8 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 PM 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.

&&

$$
313 
WHUS73 KAPX 220305
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1005 PM EST Thu Jan 21 2021

LHZ345>349-221115-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1005 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 35 kt and highest waves around 7 
  feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island, Sturgeon Pt 
  to Alabaster MI, Straits of Mackinac within 5 nm of Mackinac 
  Bridge including Mackinac Island and St Ignace to False Detour 
  Channel.

* WHEN...Until 6 PM 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.

&&

$$

LMZ323-341-342-344>346-221115-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210122T2300Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1005 PM EST Thu Jan 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

* WHAT...Highest gusts up to 40 kt and highest waves around 8 
  feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 PM 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.

&&

$$
276 
WHUS73 KAPX 220814
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
314 AM EST Fri Jan 22 2021

LHZ347>349-221615-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
314 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 7 feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LMZ323-342-344>346-221615-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
314 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 8 feet.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Norwood MI to 5NM West of Mackinac Bridge 
  including Little Traverse Bay, Manistee to Point Betsie MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Point 
  Betsie to Sleeping Bear Point MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LHZ345-346-LMZ341-221615-
/O.EXT.KAPX.SC.Y.0007.000000T0000Z-210123T0400Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Seul Choix Point to 5NM West of Mackinac Bridge-
314 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 4 feet.

* WHERE...In Lake Michigan, Seul Choix Point to 5NM West of 
  Mackinac Bridge. In Lake Huron, Straits of Mackinac within 5 
  nm of Mackinac Bridge including Mackinac Island and St Ignace 
  to False Detour Channel.

* WHEN...Until 11 PM EST 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.

&&

$$
594 
WHUS73 KAPX 221503
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1003 AM EST Fri Jan 22 2021

LHZ347>349-222315-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1003 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and highest
  waves around 6 feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LMZ323-342-344>346-222315-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1003 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 7 feet.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Norwood MI to 5NM West of Mackinac Bridge 
  including Little Traverse Bay, Manistee to Point Betsie MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Point 
  Betsie to Sleeping Bear Point MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LHZ345-346-LMZ341-222315-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0400Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Seul Choix Point to 5NM West of Mackinac Bridge-
1003 AM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 4 feet.

* WHERE...In Lake Michigan, Seul Choix Point to 5NM West of 
  Mackinac Bridge. In Lake Huron, Straits of Mackinac within 5 
  nm of Mackinac Bridge including Mackinac Island and St Ignace 
  to False Detour Channel.

* WHEN...Until 11 PM EST 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.

&&

$$
402 
WHUS73 KAPX 222031
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
331 PM EST Fri Jan 22 2021

LHZ347>349-230400-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
331 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 6 feet.

* WHERE...Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary, 5NM East of Mackinac Bridge to 
  Presque Isle Light MI including Bois Blanc Island and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LMZ323-342-344>346-230400-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
331 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 6 feet.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Norwood MI to 5NM West of Mackinac Bridge 
  including Little Traverse Bay, Manistee to Point Betsie MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Point 
  Betsie to Sleeping Bear Point MI.

* WHEN...Until 4 AM EST 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.

&&

$$

LHZ345-346-LMZ341-230400-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0400Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Seul Choix Point to 5NM West of Mackinac Bridge-
331 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...

* WHAT...Highest gusts up to 25 kt from the northwest and 
  highest waves around 4 feet.

* WHERE...In Lake Michigan, Seul Choix Point to 5NM West of 
  Mackinac Bridge. In Lake Huron, Straits of Mackinac within 5 
  nm of Mackinac Bridge including Mackinac Island and St Ignace 
  to False Detour Channel.

* WHEN...Until 11 PM EST 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.

&&

$$
175 
WHUS73 KAPX 230307
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1007 PM EST Fri Jan 22 2021

LHZ345-346-LMZ341-230415-
/O.CAN.KAPX.SC.Y.0007.000000T0000Z-210123T0400Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Seul Choix Point to 5NM West of Mackinac Bridge-
1007 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

LHZ347>349-230900-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1007 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 6 feet.

* WHERE...Sturgeon Pt to Alabaster MI, 5NM East of Mackinac 
  Bridge to Presque Isle Light MI including Bois Blanc Island 
  and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay 
  National Marine Sanctuary.

* WHEN...Until 4 AM EST 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.

&&

$$

LMZ323-342-344>346-230900-
/O.CON.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1007 PM EST Fri Jan 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SATURDAY...

* WHAT...Highest gusts up to 25 kt from the northwest and 
  highest waves around 5 feet.

* WHERE...Manistee to Point Betsie MI, Grand Traverse Bay south 
  of a line Grand Traverse Light to Norwood MI, Sleeping Bear 
  Point to Grand Traverse Light MI, Norwood MI to 5NM West of 
  Mackinac Bridge including Little Traverse Bay and Point Betsie 
  to Sleeping Bear Point MI.

* WHEN...Until 4 AM EST 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.

&&

$$
885 
WHUS73 KAPX 230814
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
314 AM EST Sat Jan 23 2021

LHZ347>349-LMZ323-342-344>346-230915-
/O.CAN.KAPX.SC.Y.0007.000000T0000Z-210123T0900Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
314 AM EST Sat Jan 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 3:32 AM ESTLakeshore Flood AdvisoryAPXBenzie, Charlevoix, Emmet, Leelanau, Mackinac, Manistee25 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.