Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 46, NWS Gaylord, MI

April 18, 2021

NWS Gaylord, MI issued this small craft advisory at Apr 18, 2021, 2:40 PM EDT. It took effect at Apr 19, 2021, 8:00 AM EDT. It was in force for 44 hr.

The area

The counties it named.

The facts

Issued
Apr 18, 2021, 2:40 PM EDT (18:40 UTC)
In effect from
Apr 19, 2021, 8:00 AM EDT
Expired
Apr 21, 2021, 4:00 AM EDT
In force
44 hr
Issued by
NWS Gaylord, MI

The text

As transmitted.

149 
WHUS73 KAPX 181840
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
240 PM EDT Sun Apr 18 2021

LSZ321-190500-
/O.CAN.KAPX.GL.A.0010.210419T1500Z-210420T0000Z/
/O.NEW.KAPX.GL.W.0012.210420T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
240 PM EDT Sun Apr 18 2021

...GALE WARNING IN EFFECT FROM 8 PM MONDAY TO 6 AM EDT TUESDAY...
...GALE WATCH IS CANCELLED...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 9 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...From 8 PM Monday to 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ341-342-190500-
/O.NEW.KAPX.GL.W.0012.210419T1800Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
240 PM EDT Sun Apr 18 2021

...GALE WARNING IN EFFECT FROM 2 PM MONDAY TO 6 AM EDT TUESDAY...

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

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...From 2 PM Monday to 6 AM EDT Tuesday.

* 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>347-190500-
/O.NEW.KAPX.GL.W.0012.210419T2100Z-210420T1000Z/
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-
240 PM EDT Sun Apr 18 2021

...GALE WARNING IN EFFECT FROM 5 PM MONDAY TO 6 AM EDT TUESDAY...

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

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

* WHEN...From 5 PM Monday to 6 AM EDT Tuesday.

* 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.

&&

$$

LSZ322-190500-
/O.UPG.KAPX.GL.A.0010.210419T1500Z-210420T0000Z/
/O.NEW.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
240 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM MONDAY TO 6 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kt from the southwest and highest
  waves around 5 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...From 11 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-344>346-190500-
/O.NEW.KAPX.SC.Y.0046.210419T0900Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
240 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM MONDAY TO 6 AM EDT
TUESDAY...

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

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 5 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-190500-
/O.NEW.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
240 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM MONDAY TO 6 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kt from the west 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 11 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
9 follow-up statements
348 
WHUS73 KAPX 190115
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
915 PM EDT Sun Apr 18 2021

LMZ341-342-190915-
/O.CON.KAPX.GL.W.0012.210419T1800Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
915 PM EDT Sun Apr 18 2021

...GALE WARNING REMAINS IN EFFECT FROM 2 PM MONDAY TO 6 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 40 kt from the west and highest 
  waves around 8 feet expected.

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay and Seul Choix Point to 5NM West of 
  Mackinac Bridge.

* WHEN...From 2 PM Monday to 6 AM EDT Tuesday.

* 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>347-190915-
/O.CON.KAPX.GL.W.0012.210419T2100Z-210420T1000Z/
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-
915 PM EDT Sun Apr 18 2021

...GALE WARNING REMAINS IN EFFECT FROM 5 PM MONDAY TO 6 AM EDT
TUESDAY...

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

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

* WHEN...From 5 PM Monday to 6 AM EDT Tuesday.

* 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.

&&

$$

LSZ321-190915-
/O.CON.KAPX.GL.W.0012.210420T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
915 PM EDT Sun Apr 18 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 PM MONDAY TO 6 AM EDT
TUESDAY...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...From 8 PM Monday to 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ323-344>346-190915-
/O.CON.KAPX.SC.Y.0046.210419T0900Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
915 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM MONDAY TO
6 AM EDT TUESDAY...

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

* WHERE...Point Betsie to Sleeping Bear Point MI, Grand Traverse 
  Bay south of a line Grand Traverse Light to Norwood MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Manistee to 
  Point Betsie MI.

* WHEN...From 5 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-190915-
/O.CON.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
915 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO
6 AM EDT TUESDAY...

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

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

* WHEN...From 11 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-190915-
/O.CON.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
915 PM EDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO
6 AM EDT TUESDAY...

* WHAT...Highest gusts up to 30 kt from the southwest and 
  highest waves around 5 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...From 11 AM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
840 
WHUS73 KAPX 190727
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
327 AM EDT Mon Apr 19 2021

LMZ341-342-191530-
/O.CON.KAPX.GL.W.0012.210419T1800Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
327 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

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

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay and Seul Choix Point to 5NM West of 
  Mackinac Bridge.

* WHEN...From 2 PM this afternoon to 6 AM EDT Tuesday.

* 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>347-191530-
/O.CON.KAPX.GL.W.0012.210419T2100Z-210420T1000Z/
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-
327 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

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

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

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

* 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.

&&

$$

LSZ321-191530-
/O.CON.KAPX.GL.W.0012.210420T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
327 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 6 AM
EDT TUESDAY...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...From 8 PM this evening to 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ323-344>346-191530-
/O.EXT.KAPX.SC.Y.0046.210419T1200Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
327 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO
6 AM EDT TUESDAY...

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

* WHERE...Point Betsie to Sleeping Bear Point MI, Grand Traverse 
  Bay south of a line Grand Traverse Light to Norwood MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Manistee to 
  Point Betsie MI.

* WHEN...From 8 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-191530-
/O.EXT.KAPX.SC.Y.0046.210419T1500Z-210420T2100Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
327 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO
5 PM EDT TUESDAY...

* WHAT...Highest gusts up to 30 kt from the west and highest 
  waves around 5 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...From 11 AM this morning to 5 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-191530-
/O.CON.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
327 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 6 AM EDT TUESDAY...

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

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

* WHEN...From 11 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
576 
WHUS73 KAPX 191300
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
900 AM EDT Mon Apr 19 2021

LMZ341-342-192200-
/O.CON.KAPX.GL.W.0012.210419T1800Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
900 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

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

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay and Seul Choix Point to 5NM West of 
  Mackinac Bridge.

* WHEN...From 2 PM this afternoon to 6 AM EDT Tuesday.

* 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>347-192200-
/O.CON.KAPX.GL.W.0012.210419T2100Z-210420T1000Z/
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-
900 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

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

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

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

* 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.

&&

$$

LSZ321-192200-
/O.CON.KAPX.GL.W.0012.210420T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
900 AM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 6 AM
EDT TUESDAY...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...From 8 PM this evening to 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ323-344>346-192200-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
900 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

* WHERE...Point Betsie to Sleeping Bear Point MI, Grand Traverse 
  Bay south of a line Grand Traverse Light to Norwood MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Manistee to 
  Point Betsie MI.

* WHEN...From 8 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-192200-
/O.CON.KAPX.SC.Y.0046.210419T1500Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
900 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

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

* WHEN...From 11 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-192200-
/O.CON.KAPX.SC.Y.0046.210419T1500Z-210420T2100Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
900 AM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kt from the west and highest 
  waves around 5 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...From 11 AM this morning to 5 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
569 
WHUS73 KAPX 191906
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
306 PM EDT Mon Apr 19 2021

LMZ341-342-200500-
/O.CON.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
306 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT TUESDAY...

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

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay and Seul Choix Point to 5NM West of 
  Mackinac Bridge.

* WHEN...From 2 PM this afternoon to 6 AM EDT Tuesday.

* 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>347-200500-
/O.CON.KAPX.GL.W.0012.210419T2100Z-210420T1000Z/
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-
306 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT TUESDAY...

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

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

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

* 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.

&&

$$

LSZ321-200500-
/O.CON.KAPX.GL.W.0012.210420T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
306 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 6 AM
EDT TUESDAY...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...From 8 PM this evening to 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ323-344>346-200500-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
306 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

* WHERE...Point Betsie to Sleeping Bear Point MI, Grand Traverse 
  Bay south of a line Grand Traverse Light to Norwood MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Manistee to 
  Point Betsie MI.

* WHEN...From 8 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-200500-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
306 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

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

* WHEN...From 11 AM this morning to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-200500-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T2100Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
306 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kt from the west and highest 
  waves around 5 feet expected.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...From 11 AM this morning to 5 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
005 
WHUS73 KAPX 200101
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
901 PM EDT Mon Apr 19 2021

LMZ341-342-200915-
/O.CON.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
901 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT TUESDAY...

* WHAT...Highest gusts up to 35 kt from the northwest and 
  highest waves around 6 feet.

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay and Seul Choix Point to 5NM West of 
  Mackinac Bridge.

* WHEN...Until 6 AM EDT Tuesday.

* 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>347-200915-
/O.CON.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
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-
901 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT TUESDAY...

* WHAT...Highest gusts up to 35 kt from the west and highest 
  waves around 8 feet.

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

* 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.

&&

$$

LSZ321-200915-
/O.CON.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
901 PM EDT Mon Apr 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT TUESDAY...

* WHAT...Highest gusts up to 40 kt from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...Until 6 AM EDT Tuesday.

* 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.

&&

$$

LMZ323-344>346-200915-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
901 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

* WHERE...Point Betsie to Sleeping Bear Point MI, Grand Traverse 
  Bay south of a line Grand Traverse Light to Norwood MI, 
  Sleeping Bear Point to Grand Traverse Light MI and Manistee to 
  Point Betsie MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ348-349-200915-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
901 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

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

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

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ322-200915-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T2100Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
901 PM EDT Mon Apr 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT
TUESDAY...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 5 feet.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...Until 5 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
975 
WHUS73 KAPX 200817
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
417 AM EDT Tue Apr 20 2021

LSZ321-201630-
/O.CAN.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
/O.EXB.KAPX.SC.Y.0046.000000T0000Z-210421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...GALE WARNING IS CANCELLED...

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

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...Until 8 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.

&&

$$

LHZ347-201630-
/O.CAN.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
/O.EXB.KAPX.SC.Y.0046.000000T0000Z-210421T0800Z/
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT WEDNESDAY...
...GALE WARNING IS CANCELLED...

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

* WHERE...5NM East of Mackinac Bridge to Presque Isle Light MI 
  including Bois Blanc Island.

* WHEN...Until 4 AM EDT Wednesday.

* 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-LMZ341-201630-
/O.CAN.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
/O.EXB.KAPX.SC.Y.0046.000000T0000Z-210420T2000Z/
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-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...
...GALE WARNING IS CANCELLED...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 6 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 4 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.

&&

$$

LMZ342-201630-
/O.CAN.KAPX.GL.W.0012.000000T0000Z-210420T1000Z/
/O.EXB.KAPX.SC.Y.0046.000000T0000Z-210420T2000Z/
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...
...GALE WARNING IS CANCELLED...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 5 feet.

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay.

* WHEN...Until 4 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.

&&

$$

LMZ323-344-201500-
/O.EXT.KAPX.SC.Y.0046.000000T0000Z-210420T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 5 feet.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI and Sleeping Bear Point to Grand Traverse 
  Light MI.

* WHEN...Until 11 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.

&&

$$

LSZ322-201630-
/O.EXT.KAPX.SC.Y.0046.000000T0000Z-210421T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 5 feet.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay.

* WHEN...Until 8 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.

&&

$$

LHZ348-349-201630-
/O.EXT.KAPX.SC.Y.0046.000000T0000Z-210421T0800Z/
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
417 AM EDT Tue Apr 20 2021

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

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

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

* WHEN...Until 4 AM EDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ345-346-201000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T1000Z/
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
417 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...

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

* WHERE...Point Betsie to Sleeping Bear Point MI and Manistee to 
  Point Betsie MI.

* WHEN...Until 6 AM EDT early 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.

&&

$$
649 
WHUS73 KAPX 201356
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
956 AM EDT Tue Apr 20 2021

LMZ323-344-201500-
/O.CAN.KAPX.SC.Y.0046.000000T0000Z-210420T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
956 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

LSZ321-322-210000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
956 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Highest gusts up to 25 kt from the northwest and 
  highest waves around 6 feet.

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay and Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...Until 8 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.

&&

$$

LHZ347>349-210000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210421T0800Z/
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-
956 AM EDT Tue Apr 20 2021

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

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

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

* WHEN...Until 4 AM EDT Wednesday.

* 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-LMZ341-202000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T2000Z/
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-
956 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Highest gusts up to 25 kt from the northwest and 
  highest waves around 3 feet.

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

* WHEN...Until 4 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.

&&

$$

LMZ342-202000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210420T2000Z/
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
956 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

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

* WHERE...Norwood MI to 5NM West of Mackinac Bridge including 
  Little Traverse Bay.

* WHEN...Until 4 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.

&&

$$
323 
WHUS73 KAPX 201928
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
328 PM EDT Tue Apr 20 2021

LHZ345-346-LMZ341-342-202030-
/O.CAN.KAPX.SC.Y.0046.000000T0000Z-210420T2000Z/
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-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
328 PM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

LSZ321-322-210000-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
328 PM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

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

* WHERE...St. Marys River Point Iroquois to E. Potagannissing 
  Bay and Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI.

* WHEN...Until 8 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.

&&

$$

LHZ347>349-210500-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210421T0800Z/
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-
328 PM EDT Tue Apr 20 2021

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

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

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

* WHEN...Until 4 AM EDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
040 
WHUS73 KAPX 210102
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
902 PM EDT Tue Apr 20 2021

LHZ347>349-210800-
/O.CON.KAPX.SC.Y.0046.000000T0000Z-210421T0800Z/
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-
902 PM EDT Tue Apr 20 2021

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

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

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

* WHEN...Until 4 AM EDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 2:40 PM EDTGale WarningAPX38 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.