Small Craft Advisory 39, NWS Gaylord, MI

161 
WHUS73 KAPX 190203
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1003 PM EDT Thu Apr 18 2024

LSZ321-191015-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1003 PM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
8 PM EDT SATURDAY...

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

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

* WHEN...From noon Friday to 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-191015-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
1003 PM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
MIDNIGHT EDT FRIDAY NIGHT...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...From noon Friday to midnight EDT Friday 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.

&&

$$

LHZ345>349-191015-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
1003 PM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
MIDNIGHT EDT FRIDAY NIGHT...

* WHAT...Highest gusts up to 30 kts from the west and highest 
  waves around 4 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, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...From noon Friday to midnight EDT Friday 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.

&&

$$

340 
WHUS73 KAPX 190742
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
342 AM EDT Fri Apr 19 2024

LSZ321-191545-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
342 AM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM
EDT SATURDAY...

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

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

* WHEN...From noon today to 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-191545-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
342 AM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT EDT TONIGHT...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...From noon today to midnight EDT 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>349-191545-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
342 AM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT EDT TONIGHT...

* WHAT...Highest gusts up to 30 kts from the west and highest 
  waves around 4 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, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...From noon today to midnight EDT 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.

&&

$$

159 
WHUS73 KAPX 191413
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1013 AM EDT Fri Apr 19 2024

LSZ321-192215-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1013 AM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

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

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

* WHEN...Until 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-192215-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
1013 AM EDT Fri Apr 19 2024

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

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until midnight EDT 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>349-192215-
/O.CON.KAPX.SC.Y.0039.240419T1600Z-240420T0400Z/
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-
1013 AM EDT Fri Apr 19 2024

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

* WHAT...Highest gusts up to 30 kts from the west and highest 
  waves around 4 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, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until midnight EDT 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.

&&

$$

841 
WHUS73 KAPX 191830
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
230 PM EDT Fri Apr 19 2024

LMZ323-341-342-344>346-200230-
/O.EXT.KAPX.SC.Y.0039.000000T0000Z-240420T0900Z/
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-
230 PM EDT Fri Apr 19 2024

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

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 5 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ321-200230-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
230 PM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

* WHAT...Highest gusts up to 25 kts and highest waves around 8 
  feet.

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

* WHEN...Until 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LHZ345>349-200230-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240420T0400Z/
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-
230 PM EDT Fri Apr 19 2024

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

* WHAT...Highest gusts up to 30 kts from the west and highest 
  waves around 4 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 EDT 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.

&&

$$

812 
WHUS73 KAPX 200209
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1009 PM EDT Fri Apr 19 2024

LHZ345>349-200315-
/O.CAN.KAPX.SC.Y.0039.000000T0000Z-240420T0400Z/
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-
1009 PM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

LSZ321-201015-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1009 PM EDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

* WHAT...Highest gusts up to 25 kts from the west and highest
  waves around 7 feet.

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

* WHEN...Until 8 PM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ323-341-342-344>346-200900-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240420T0900Z/
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-
1009 PM EDT Fri Apr 19 2024

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

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 5 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

892 
WHUS73 KAPX 200717
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 AM EDT Sat Apr 20 2024

LSZ322-201530-
/O.EXB.KAPX.SC.Y.0039.240420T1200Z-240421T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 AM EDT Sat Apr 20 2024

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

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

&&

$$

LHZ345>349-201530-
/O.EXB.KAPX.SC.Y.0039.240420T1000Z-240421T0000Z/
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-
317 AM EDT Sat Apr 20 2024

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

* WHAT...Highest gusts up to 30 kts from the west and highest 
  waves around 5 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, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster 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.

&&

$$

LMZ323-341-342-344>346-201530-
/O.EXT.KAPX.SC.Y.0039.000000T0000Z-240420T2200Z/
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-
317 AM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 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.

&&

$$

LSZ321-201530-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
317 AM EDT Sat Apr 20 2024

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

* WHAT...Highest gusts up to 25 kts from the west and highest 
  waves around 8 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.

&&

$$

081 
WHUS73 KAPX 201450
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1050 AM EDT Sat Apr 20 2024

LSZ321-201600-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1050 AM EDT Sat Apr 20 2024

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

* WHAT...Highest gusts up to 25 kts from the northwest and 
  highest waves around 7 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.

&&

$$

LMZ323-341-342-344>346-201600-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240420T2200Z/
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-
1050 AM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 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.

&&

$$

LSZ322-201600-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
1050 AM EDT Sat Apr 20 2024

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

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

&&

$$

LHZ345>349-201600-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
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-
1050 AM EDT Sat Apr 20 2024

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

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

&&

$$

774 
WHUS73 KAPX 201859
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
259 PM EDT Sat Apr 20 2024

LSZ321-210000-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
259 PM EDT Sat Apr 20 2024

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

* WHAT...Highest gusts up to 25 kts from the northwest and 
  highest waves around 7 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.

&&

$$

LMZ323-341-342-344>346-202200-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240420T2200Z/
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-
259 PM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

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

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 6 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.

&&

$$

LSZ322-210000-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
St. Marys River Point Iroquois to E. Potagannissing Bay-
259 PM EDT Sat Apr 20 2024

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

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

&&

$$

LHZ345>349-210000-
/O.CON.KAPX.SC.Y.0039.000000T0000Z-240421T0000Z/
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-
259 PM EDT Sat Apr 20 2024

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

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

&&

$$

Area Forecast Discussion
National Weather Service Gaylord MI
410 PM EDT Thu Apr 18 2024

.KEY MESSAGES...

- Rain comes in and moves out tonight.

- Colder/breezy Friday with instability showers.

- Snow showers possible in some areas late Friday night into
  Saturday morning.

- Rain shower chances next Monday night and Tuesday.

&&

.SHORT TERM /THROUGH FRIDAY/...

Pattern Synopsis/Forecast: Amplified large scale pattern across
North America and stretching back across the Pacific. One short
wave trough moving away from the Great Lakes today with another
upper low over Saskatchewan/Manitoba that makes up the eastern
portion of a northeast Pacific omega block. Low/mid level cold
air push across the northern Plains/midwest/upper Great
Lakes...850mb temperatures at or below -4C advecting east across
the Dakotas/ Minnesota. Early afternoon surface map shows a
broad occluded low over northwest Ontario...cold/occluded front
arcs south across western Upper/Wisconsin/eastern Iowa.
Widespread clouds northern Michigan at mid afternoon...a
combination of diurnally enhanced Sc and Ac advancing in from
the southwest along with some mid level radar returns across
Wisconsin and central Lower Michigan.

Central Canadian upper low will propagate east through Friday...
passing north of the Great Lakes but there will be some increasing
PV spreading across the forecast area Friday.  Associated
cold/occluded front crosses Michigan overnight...with deep layer
cold air advection in its wake.

Primary Forecast Concerns:

Rain comes in and moves out tonight: Axis of deeper moisture and
large scale forcing/frontogenesis ahead of the cold/occluded front
is expected to bring widespread rain chances to northern Michigan
tonight.  Should be a quick hitting event...window for precipitation
looks to be about 6-8 hours though there may be some drizzle on the
back end with the front itself.  Stability will be weak across
northern Michigan but probably not enough for thunder as better
instability will be over southern Lower and points south tonight.
Highest rainfall potential should be along-east of a CAD-APN line
where rainfall totals by Friday morning of 0.25-0.50+ expected (the
0.50+ should be closer to Saginaw Bay).

Colder/breezy Friday with instability showers:  Behind the occluded
front winds will increase from the west and with cold advection/
isentropic downsloping and an increased mixed layer depth should be
able to tap into better momentum aloft.  Probability for wind gusts
to 30 mph in the 40-50 percent range across northern Lower and
through the Straits region.  Definitely looking at Small Craft
Advisories within most if not all nearshore marine zones.  As for
precipitation chances...cold advection will increase instability
across the forecast area but upper level cold pool will settle
across Lake Superior allowing for the potential for deeper diurnal
convective clouds across eastern Upper and the Straits region Friday
afternoon.  TQ index values around 17 suggest potential for shallow
convective development...some indications of enhanced convergence
across eastern Upper won't hurt the cause either.  Could see some
graupel/snow mixed in given colder mid level temperatures especially
in heavier bursts of precipitation.  Not sure how far south into
northern Lower to pull precip chances with indications of a
shallower convective layer/lower inversion heights. For now have
kept PoPs north of the M-68 corridor.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...

A broad long wave trough covering much of southwest Canada will
track slowly to the east over the next couple of days. Meanwhile
another trough will drop south out of north central Canada and merge
with the first trough and set up shop across northeast Canada for a
few days. This is all expected to translate into a period of breezy
and mostly below normal temperatures across northern Michigan. In
addition, weak disturbances moving through the flow will bring
occasional chances for showers Friday night into this weekend. It
still looks cold enough for the showers to fall in the form of snow
across parts of eastern upper and the higher terrain of northern
lower later Friday night into Saturday morning (targeting west
northwest favored locals). A light coating of the white stuff would
not be a surprise. Lastly, a Pacific trough then brings rain shower
chances next Monday night and Tuesday. No precipitation is expected
Monday, Wednesday and Thursday.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
A mix of VFR and MVFR conditions to start this forecast cycle...
with Sc clouds hanging on around KCIU/KPLN/KAPN and mid clouds
at KMBL/KTVC. Eventually expect improvement to VFR at KCIU/KPLN...
KAPN more likely to remain predominantly MVFR. Rain moves into
starting this evening ahead a cold/occluded front...precip
window looks to be around 6-8 hours. Some MVFR visibilities with
the precipitation but as main precipitation moves out there is
a decent signal for low MVFR/IFR ceilings developing in the
04-14z time frame.

&&

.APX WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...None.

&&

SHORT TERM...JPB
LONG TERM...AJS
AVIATION...JPB

Hazardous Weather Outlook
National Weather Service Gaylord MI
247 PM EDT Thu Apr 18 2024

MIZ016>018-020>036-041-042-086>088-095>099-191900-
Emmet-Cheboygan-Presque Isle-Leelanau-Antrim-Otsego-Montmorency-
Alpena-Benzie-Grand Traverse-Kalkaska-Crawford-Oscoda-Alcona-
Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-Gladwin-Arenac-
Western Chippewa-Central Chippewa-Southeast Chippewa-
Western Mackinac-Eastern Mackinac-
Mackinac Island/Bois Blanc Island-
Beaver Island and surrounding islands-Charlevoix-
247 PM EDT Thu Apr 18 2024

This hazardous weather outlook is for Eastern Upper Michigan and
Northern Lower Michigan.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

For more information visit http://weather.gov/gaylord.

LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-191900-
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-
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-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
247 PM EDT Thu Apr 18 2024

This hazardous weather outlook is for the northern Michigan
nearshore waters of Lake Huron, Lake Michigan and Lake Superior.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

For more information visit http://weather.gov/gaylord.