Alert archive / Michigan / Storm Warnings in 2021

Storm Warning 3, NWS Gaylord, MI

December 15, 2021

NWS Gaylord, MI issued this storm warning at Dec 15, 2021, 3:35 AM EST. It took effect at Dec 15, 2021, 7:00 PM EST. It was in force for 25 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 15, 2021, 3:35 AM EST (08:35 UTC)
In effect from
Dec 15, 2021, 7:00 PM EST
Expired
Dec 16, 2021, 7:44 PM EST
In force
25 hr
Issued by
NWS Gaylord, MI

The text

As transmitted.

180 
WHUS73 KAPX 150835
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
335 AM EST Wed Dec 15 2021

LHZ349-151645-
/O.CAN.KAPX.SC.Y.0123.000000T0000Z-211215T1200Z/
/O.UPG.KAPX.GL.A.0023.211216T0500Z-211217T0500Z/
/O.NEW.KAPX.GL.W.0032.211216T0500Z-211217T0500Z/
Sturgeon Pt to Alabaster MI-
335 AM EST Wed Dec 15 2021

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST
THURSDAY NIGHT...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Highest gusts up to 45 kt from the southwest and 
  highest waves around 6 feet expected.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...From midnight tonight to midnight EST Thursday night.

* 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>348-151645-
/O.CAN.KAPX.SC.Y.0123.000000T0000Z-211215T1200Z/
/O.UPG.KAPX.GL.A.0023.211216T0500Z-211217T0500Z/
/O.NEW.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
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-
335 AM EST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST
THURSDAY NIGHT...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 9 feet expected.

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

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-151645-
/O.CAN.KAPX.SC.Y.0123.000000T0000Z-211215T1200Z/
/O.UPG.KAPX.GL.A.0023.211216T0800Z-211217T0500Z/
/O.NEW.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
335 AM EST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST
THURSDAY NIGHT...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 12 feet expected.

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

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-151645-
/O.CAN.KAPX.SC.Y.0123.000000T0000Z-211215T1200Z/
/O.UPG.KAPX.SR.A.0001.211216T0000Z-211217T0000Z/
/O.NEW.KAPX.SR.W.0003.211216T0000Z-211217T0000Z/
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-
335 AM EST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EST
THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 15 feet expected.

* WHERE...Portions of Lake Michigan. 

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
8 follow-up statements
545 
WHUS73 KAPX 151447
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
947 AM EST Wed Dec 15 2021

LHZ349-152300-
/O.CON.KAPX.GL.W.0032.211216T0500Z-211217T0500Z/
Sturgeon Pt to Alabaster MI-
947 AM EST Wed Dec 15 2021

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST THURSDAY NIGHT...

* WHAT...Highest gusts up to 45 kt from the southwest and 
  highest waves around 7 feet expected.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...From midnight tonight to midnight EST Thursday night.

* 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.

&&

$$

LMZ323-341-342-344>346-152300-
/O.CON.KAPX.SR.W.0003.211216T0000Z-211217T0000Z/
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 Wed Dec 15 2021

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

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 17 feet expected.

* WHERE...Portions of Lake Michigan. 

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>348-152300-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
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-
947 AM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST THURSDAY NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 10 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, St Ignace 
  to False Detour Channel and Presque Isle Light to Sturgeon Pt 
  MI Including Thunder Bay National Marine Sanctuary.

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-152300-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
947 AM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST THURSDAY NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 12 feet expected.

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

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
062 
WHUS73 KAPX 152046
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
346 PM EST Wed Dec 15 2021

LHZ349-160500-
/O.UPG.KAPX.GL.W.0032.211216T0500Z-211217T0500Z/
/O.EXA.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
Sturgeon Pt to Alabaster MI-
346 PM EST Wed Dec 15 2021

...STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT EST
THURSDAY NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and highest
  waves around 7 feet expected.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-160500-
/O.CON.KAPX.SR.W.0003.211216T0000Z-211217T0000Z/
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-
346 PM EST Wed Dec 15 2021

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

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 17 feet expected.

* WHERE...Portions of Lake Michigan. 

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>348-160500-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
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-
346 PM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST THURSDAY NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 11 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, St Ignace 
  to False Detour Channel and Presque Isle Light to Sturgeon Pt 
  MI Including Thunder Bay National Marine Sanctuary.

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-160500-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
346 PM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST THURSDAY NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 15 feet expected.

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

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
928 
WHUS73 KAPX 160401
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1101 PM EST Wed Dec 15 2021

LMZ323-341-342-344>346-161215-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0000Z/
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-
1101 PM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THURSDAY...

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 17 feet expected.

* WHERE...Portions of Lake Michigan.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>349-161215-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
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-
1101 PM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST THURSDAY
NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 11 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, St Ignace 
  to False Detour Channel and Presque Isle Light to Sturgeon Pt 
  MI Including Thunder Bay National Marine Sanctuary.

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-161215-
/O.CON.KAPX.SR.W.0003.211216T0500Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1101 PM EST Wed Dec 15 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST THURSDAY
NIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 15 feet expected.

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

* WHEN...From midnight tonight to midnight EST Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
742 
WHUS73 KAPX 160818
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
318 AM EST Thu Dec 16 2021

LMZ323-341-342-344>346-161630-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0000Z/
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-
318 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 17 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 7 PM EST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>349-161630-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
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-
318 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 11 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, Sturgeon Pt 
  to Alabaster MI, St Ignace to False Detour Channel and Presque 
  Isle Light to Sturgeon Pt MI Including Thunder Bay National 
  Marine Sanctuary.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-161630-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
318 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the southwest and 
  highest waves around 14 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
232 
WHUS73 KAPX 161555
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1055 AM EST Thu Dec 16 2021

LMZ323-341-342-344>346-170000-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0000Z/
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-
1055 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 55 kt from the southwest and 
  highest waves around 16 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 7 PM EST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>349-170000-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
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-
1055 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the west and highest 
  waves around 12 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, Sturgeon Pt 
  to Alabaster MI, St Ignace to False Detour Channel and Presque 
  Isle Light to Sturgeon Pt MI Including Thunder Bay National 
  Marine Sanctuary.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-170000-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1055 AM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the west and highest 
  waves around 14 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
531 
WHUS73 KAPX 162059
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
359 PM EST Thu Dec 16 2021

LMZ323-341-342-344>346-170000-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0000Z/
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-
359 PM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 55 kt from the west and highest 
  waves around 14 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 7 PM EST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>349-170500-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
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-
359 PM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 55 kt from the west and highest 
  waves around 12 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, Sturgeon Pt 
  to Alabaster MI, St Ignace to False Detour Channel and Presque 
  Isle Light to Sturgeon Pt MI Including Thunder Bay National 
  Marine Sanctuary.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-170500-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
359 PM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 55 kt from the west and highest 
  waves around 14 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
920 
WHUS73 KAPX 170020
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
720 PM EST Thu Dec 16 2021

LMZ323-341-342-344>346-170500-
/O.EXP.KAPX.SR.W.0003.000000T0000Z-211217T0000Z/
/O.NEW.KAPX.GL.W.0033.211217T0020Z-211217T0500Z/
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-
720 PM EST Thu Dec 16 2021

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...STORM WARNING HAS EXPIRED...

* WHAT...Highest gusts up to 45 kt from the west and highest 
  waves around 14 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until midnight EST tonight.

* 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>349-170500-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
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-
720 PM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the west and highest 
  waves around 11 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, Sturgeon Pt 
  to Alabaster MI, St Ignace to False Detour Channel and Presque 
  Isle Light to Sturgeon Pt MI Including Thunder Bay National 
  Marine Sanctuary.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-322-170500-
/O.CON.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
720 PM EST Thu Dec 16 2021

...STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 50 kt from the west and highest 
  waves around 14 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
151 
WHUS73 KAPX 170044
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
744 PM EST Thu Dec 16 2021

LHZ345>349-170500-
/O.CAN.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
/O.EXA.KAPX.GL.W.0033.000000T0000Z-211217T0500Z/
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-
744 PM EST Thu Dec 16 2021

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...STORM WARNING IS CANCELLED...

* WHAT...Highest gusts up to 40 kt from the west and highest 
  waves around 11 feet.

* WHERE...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 and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until midnight EST tonight.

* 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.

&&

$$

LSZ321-322-170500-
/O.CAN.KAPX.SR.W.0003.000000T0000Z-211217T0500Z/
/O.EXA.KAPX.GL.W.0033.000000T0000Z-211217T0500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
744 PM EST Thu Dec 16 2021

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...STORM WARNING IS CANCELLED...

* WHAT...Highest gusts up to 45 kt from the west and highest 
  waves around 14 feet.

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

* WHEN...Until midnight EST tonight.

* 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.

&&

$$

LMZ323-341-342-344>346-170500-
/O.CON.KAPX.GL.W.0033.000000T0000Z-211217T0500Z/
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-
744 PM EST Thu Dec 16 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Highest gusts up to 45 kt from the west and highest 
  waves around 14 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until midnight EST tonight.

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 3:19 AM ESTHigh Wind WarningAPXAlcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 15 more41 hr
Dec 15, 3:19 AM ESTWind AdvisoryAPXArenac, Gladwin, Iosco, Ogemaw41 hr
Dec 15, 3:35 AM ESTGale WarningAPX12 hr
Dec 15, 3:41 AM ESTLakeshore Flood WarningAPXBenzie, Charlevoix, Chippewa, Emmet, Leelanau, Mackinac and 1 more34 hr

Nearby

Storm Warnings in Michigan, 2021Every storm warning in 2021

Sources

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