Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 21, NWS Gaylord, MI

February 23, 2021

NWS Gaylord, MI issued this small craft advisory at Feb 23, 2021, 4:17 PM EST. It took effect at Feb 24, 2021, 7:00 AM EST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Feb 23, 2021, 4:17 PM EST (21:17 UTC)
In effect from
Feb 24, 2021, 7:00 AM EST
Expired
Feb 25, 2021, 5:24 AM EST
In force
22 hr
Issued by
NWS Gaylord, MI

The text

As transmitted.

521 
WHUS73 KAPX 232117
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
417 PM EST Tue Feb 23 2021

LMZ323-341-342-344>346-240700-
/O.CAN.KAPX.SC.Y.0020.000000T0000Z-210223T2300Z/
/O.NEW.KAPX.SC.Y.0021.210224T1200Z-210225T0000Z/
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-
417 PM EST Tue Feb 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM TO 7 PM EST
WEDNESDAY...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...From 7 AM to 7 PM EST 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>348-240700-
/O.CAN.KAPX.SC.Y.0020.000000T0000Z-210223T2300Z/
/O.NEW.KAPX.SC.Y.0021.210224T1800Z-210225T0500Z/
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-
417 PM EST Tue Feb 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM WEDNESDAY TO MIDNIGHT
EST WEDNESDAY NIGHT...

* WHAT...Highest gusts up to 30 kt from the northwest and 
  highest waves around 6 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 1 PM Wednesday to midnight EST Wednesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ349-240700-
/O.NEW.KAPX.SC.Y.0021.210224T1800Z-210225T0500Z/
Sturgeon Pt to Alabaster MI-
417 PM EST Tue Feb 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM WEDNESDAY TO MIDNIGHT
EST WEDNESDAY NIGHT...

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

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...From 1 PM Wednesday to midnight EST Wednesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
7 follow-up statements
070 
WHUS73 KAPX 240205
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
905 PM EST Tue Feb 23 2021

LMZ323-341-342-344>346-241015-
/O.CON.KAPX.SC.Y.0021.210224T1200Z-210225T0000Z/
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-
905 PM EST Tue Feb 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM EST
WEDNESDAY...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...From 7 AM to 7 PM EST 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>349-241015-
/O.CON.KAPX.SC.Y.0021.210224T1800Z-210225T0500Z/
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-
905 PM EST Tue Feb 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM WEDNESDAY TO
MIDNIGHT EST WEDNESDAY NIGHT...

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

* 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...From 1 PM Wednesday to midnight EST Wednesday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
354 
WHUS73 KAPX 240821
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
321 AM EST Wed Feb 24 2021

LMZ323-341-342-344>346-241630-
/O.EXT.KAPX.SC.Y.0021.210224T1200Z-210225T0500Z/
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-
321 AM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 7 AM THIS MORNING TO
MIDNIGHT EST TONIGHT...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...From 7 AM this morning to midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ347-348-241630-
/O.EXT.KAPX.SC.Y.0021.210224T1800Z-210225T0900Z/
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-
321 AM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO
4 AM EST THURSDAY...

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

* WHERE...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...From 1 PM this afternoon to 4 AM 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.

&&

$$

LHZ345-346-349-241630-
/O.CON.KAPX.SC.Y.0021.210224T1800Z-210225T0500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Sturgeon Pt to Alabaster MI-
321 AM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO MIDNIGHT EST TONIGHT...

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

* WHERE...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...From 1 PM this afternoon to midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
424 
WHUS73 KAPX 241601
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1101 AM EST Wed Feb 24 2021

LMZ323-341-342-344>346-250015-
/O.CON.KAPX.SC.Y.0021.000000T0000Z-210225T0500Z/
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 AM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345-346-349-250015-
/O.CON.KAPX.SC.Y.0021.210224T1800Z-210225T0500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Sturgeon Pt to Alabaster MI-
1101 AM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ347-348-250015-
/O.CON.KAPX.SC.Y.0021.210224T1800Z-210225T0900Z/
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-
1101 AM EST Wed Feb 24 2021

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

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

* WHERE...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 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.

&&

$$
364 
WHUS73 KAPX 242041
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
341 PM EST Wed Feb 24 2021

LMZ323-341-342-344>346-250500-
/O.CON.KAPX.SC.Y.0021.000000T0000Z-210225T0500Z/
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-
341 PM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345-346-349-250500-
/O.CON.KAPX.SC.Y.0021.000000T0000Z-210225T0500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Sturgeon Pt to Alabaster MI-
341 PM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ347-348-250900-
/O.CON.KAPX.SC.Y.0021.000000T0000Z-210225T0900Z/
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-
341 PM EST Wed Feb 24 2021

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

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

* WHERE...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 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.

&&

$$
454 
WHUS73 KAPX 250318
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1018 PM EST Wed Feb 24 2021

LHZ345-346-349-LMZ323-341-342-344>346-250430-
/O.CAN.KAPX.SC.Y.0021.000000T0000Z-210225T0500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
Sturgeon Pt to Alabaster MI-
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-
1018 PM EST Wed Feb 24 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

LHZ347-348-251130-
/O.EXT.KAPX.SC.Y.0021.000000T0000Z-210225T1200Z/
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-
1018 PM EST Wed Feb 24 2021

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

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

* WHERE...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 7 AM 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.

&&

$$
589 
WHUS73 KAPX 250807
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
307 AM EST Thu Feb 25 2021

LHZ347-348-251200-
/O.CON.KAPX.SC.Y.0021.000000T0000Z-210225T1200Z/
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-
307 AM EST Thu Feb 25 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

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

* WHERE...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 7 AM EST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
524 
WHUS73 KAPX 251024
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
524 AM EST Thu Feb 25 2021

LHZ347-348-251130-
/O.CAN.KAPX.SC.Y.0021.000000T0000Z-210225T1200Z/
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-
524 AM EST Thu Feb 25 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 3:22 AM ESTWinter Weather AdvisoryAPXAlpena, Antrim, Charlevoix, Cheboygan, Chippewa, Emmet and 5 more33 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.