Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 41, NWS Gaylord, MI

April 5, 2021

NWS Gaylord, MI issued this small craft advisory at Apr 5, 2021, 3:49 AM EDT. It took effect at Apr 5, 2021, 8:00 AM EDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Apr 5, 2021, 3:49 AM EDT (07:49 UTC)
In effect from
Apr 5, 2021, 8:00 AM EDT
Expired
Apr 6, 2021, 10:00 AM EDT
In force
26 hr
Issued by
NWS Gaylord, MI

The text

As transmitted.

220 
WHUS73 KAPX 050749
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
349 AM EDT Mon Apr 5 2021

LHZ346-051600-
/O.NEW.KAPX.SC.Y.0041.210405T1600Z-210406T0000Z/
St Ignace to False Detour Channel-
349 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT
THIS EVENING...

* WHAT...Highest waves around 5 feet expected.

* WHERE...St Ignace to False Detour Channel.

* WHEN...From noon today to 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.

&&

$$

LSZ321-051600-
/O.NEW.KAPX.SC.Y.0041.210405T1200Z-210406T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
349 AM EDT Mon Apr 5 2021

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

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

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

* WHEN...From 8 AM this morning to 8 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.

&&

$$

LSZ322-051600-
/O.NEW.KAPX.SC.Y.0041.210405T1200Z-210406T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
349 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 PM
EDT THIS EVENING...

* WHAT...Highest gusts up to 25 kt from the east expected.

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

* WHEN...From 8 AM this morning to 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.

&&

$$

LMZ341-051600-
/O.NEW.KAPX.SC.Y.0041.210405T1200Z-210406T0000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
349 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 PM
EDT THIS EVENING...

* WHAT...Highest waves around 3 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge.

* WHEN...From 8 AM this morning to 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.

&&

$$
6 follow-up statements
714 
WHUS73 KAPX 051503
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1103 AM EDT Mon Apr 5 2021

LHZ345-347-052315-
/O.EXB.KAPX.SC.Y.0041.210405T1600Z-210406T1200Z/
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-
1103 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT TUESDAY...

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

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

* WHEN...Until 8 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.

&&

$$

LHZ346-052315-
/O.EXT.KAPX.SC.Y.0041.210405T1600Z-210406T1200Z/
St Ignace to False Detour Channel-
1103 AM EDT Mon Apr 5 2021

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

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

* WHERE...St Ignace to False Detour Channel.

* WHEN...Until 8 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.

&&

$$

LSZ321-052315-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1103 AM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ322-052315-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
1103 AM EDT Mon Apr 5 2021

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

* WHAT...Highest gusts up to 25 kt from the east.

* 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.

&&

$$

LMZ341-052315-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T0000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
1103 AM EDT Mon Apr 5 2021

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

* WHAT...Highest waves around 4 feet.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge.

* 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.

&&

$$
315 
WHUS73 KAPX 052006
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
406 PM EDT Mon Apr 5 2021

LSZ322-060415-
/O.EXT.KAPX.SC.Y.0041.000000T0000Z-210406T0900Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
406 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 AM EDT TUESDAY...

* WHAT...Highest gusts up to 25 kt from the southeast.

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

* WHEN...Until 5 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.

&&

$$

LHZ345>347-060415-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
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-
406 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ321-060415-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
406 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LMZ341-060000-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T0000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
406 PM EDT Mon Apr 5 2021

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

* WHAT...Highest waves around 3 feet.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge.

* 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.

&&

$$
325 
WHUS73 KAPX 060028
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
828 PM EDT Mon Apr 5 2021

LMZ341-060130-
/O.EXP.KAPX.SC.Y.0041.000000T0000Z-210406T0000Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
828 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...


$$

LHZ345>347-060830-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
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-
828 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ321-060830-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
828 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ322-060830-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T0900Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
828 PM EDT Mon Apr 5 2021

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

* WHAT...Highest gusts up to 25 kt from the east.

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

* WHEN...Until 5 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.

&&

$$
479 
WHUS73 KAPX 060251
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1051 PM EDT Mon Apr 5 2021

LHZ345>347-061100-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
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-
1051 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ321-061100-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1051 PM EDT Mon Apr 5 2021

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

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

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

* WHEN...Until 8 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.

&&

$$

LSZ322-060900-
/O.CON.KAPX.SC.Y.0041.000000T0000Z-210406T0900Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
1051 PM EDT Mon Apr 5 2021

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

* WHAT...Highest gusts up to 25 kt from the east.

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

* WHEN...Until 5 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.

&&

$$
074 
WHUS73 KAPX 060715
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
315 AM EDT Tue Apr 6 2021

LSZ322-060815-
/O.CAN.KAPX.SC.Y.0041.000000T0000Z-210406T0900Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
315 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

LHZ345>347-060815-
/O.CAN.KAPX.SC.Y.0041.000000T0000Z-210406T1200Z/
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-
315 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...


$$

LSZ321-061400-
/O.EXT.KAPX.SC.Y.0041.000000T0000Z-210406T1400Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
315 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

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

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

* WHEN...Until 10 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.

&&

$$
864 
WHUS73 KAPX 061414
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1014 AM EDT Tue Apr 6 2021

LSZ321-061515-
/O.EXP.KAPX.SC.Y.0041.000000T0000Z-210406T1400Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1014 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...


$$

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.