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Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
333 AM CDT Thu Apr 15 2021

LMZ521-522-541>543-151700-
/O.CON.KGRB.SC.Y.0030.000000T0000Z-210415T1800Z/
Green Bay south of line from  Cedar River to Rock Island Passage
and north of a line from Oconto WI to Little Sturgeon Bay WI-
Green Bay south of line from  Oconto WI to Little Sturgeon Bay WI-
Rock Island Passage to Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
333 AM CDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Northwest winds 15 to 25 kts and waves 2 to 4 ft.

* WHERE...Lake Michigan nearshore waters from Washington Island
  to Sheboygan, and Central and Southern Bay of Green Bay.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
Kieckbusch

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
405 AM EDT Thu Apr 15 2021

LSZ248>250-151615-
/O.EXT.KMQT.SC.Y.0034.000000T0000Z-210416T2100Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
Munising to Grand Marais MI-
405 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EDT FRIDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and
  waves 7 to 10 ft occurring.

* WHERE...Huron Islands to Marquette MI, Marquette to Munising
  MI and Munising to Grand Marais MI.

* WHEN...Until 5 PM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
405 AM EDT Thu Apr 15 2021

LSZ251-151615-
/O.EXT.KMQT.SC.Y.0034.000000T0000Z-210416T1200Z/
Grand Marais to Whitefish Point MI-
405 AM EDT Thu Apr 15 2021

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

* WHAT...North winds 15 to 20 kt with gusts up to 30 kt and
  waves 4 to 7 ft occurring.

* WHERE...Grand Marais to Whitefish Point MI.

* WHEN...Until 8 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
405 AM EDT Thu Apr 15 2021

LMZ221-248-250-151615-
/O.CON.KMQT.SC.Y.0034.000000T0000Z-210416T0400Z/
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
405 AM EDT Thu Apr 15 2021

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

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and
  waves 2 to 4 ft occurring.

* WHERE...5NM East of a line from Fairport MI to Rock Island
  Passage, Seul Choix Point to Point Detour MI and Green Bay
  North of line from Cedar River MI to Rock Island Passage.

* 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.

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
352 AM EDT Thu Apr 15 2021

LMZ323-341-342-344>346-151600-
/O.CON.KAPX.SC.Y.0044.000000T0000Z-210416T0600Z/
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-
352 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT FRIDAY...

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

* WHERE...Portions of Lake Michigan.

* WHEN...Until 2 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
352 AM EDT Thu Apr 15 2021

LSZ321-322-151600-
/O.CON.KAPX.SC.Y.0044.000000T0000Z-210416T0000Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
352 AM EDT Thu Apr 15 2021

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

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

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

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
251 AM CDT Thu Apr 15 2021

LMZ643>646-151800-
/O.CON.KMKX.SC.Y.0038.210415T0900Z-210415T1800Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
251 AM CDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt
  expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...Until 1 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
349 AM EDT Thu Apr 15 2021

LHZ421-441-442-152000-
/O.NEW.KDTX.SC.Y.0025.210416T0600Z-210417T0200Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
Harbor Beach to Port Sanilac MI-
349 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 10 PM EDT FRIDAY...

* WHAT...Expect sustained winds up to 16 knots from the
  northwest with gusts up to 24 knots. The largest significant
  waves will be 5 feet with a potential maximum wave height of 7
  feet.

* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to
  Inner Saginaw Bay, Port Austin to Harbor Beach MI and Harbor
  Beach to Port Sanilac MI.

* WHEN...The maximum winds are expected around 8 AM EDT Friday
  with the largest waves expected around 10 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

KK

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
339 AM EDT Thu Apr 15 2021

LMZ844>849-151545-
/O.CON.KGRR.SC.Y.0034.000000T0000Z-210416T0600Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
339 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT FRIDAY...

* WHAT...Northwest winds 10 to 20 knots with gusts up to 30 knots
  and waves 4 to 7 feet.

* WHERE...St Joseph to Manistee.

* WHEN...Until 2 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Green Bay WI
326 AM CDT Thu Apr 15 2021

LMZ521-522-541>543-160830-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
326 AM CDT Thu Apr 15 2021

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Today and Tonight

Gusty northwest winds will create hazardous conditions for small
craft through early this afternoon.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Gusty west or northwest winds may create hazardous conditions for
small craft next Monday.

$$
Kieckbusch/Eckberg

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
253 AM CDT Thu Apr 15 2021

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-160800-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
253 AM CDT Thu Apr 15 2021

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Today and Tonight

Stronger northwest winds are expected this morning into early this
afternoon. A few gale force gusts to 35 knots are possible over
the northern half of Lake Michigan this morning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

$$


www.weather.gov/mkx

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
253 AM CDT Thu Apr 15 2021

LMZ643>646-160800-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
253 AM CDT Thu Apr 15 2021

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Today and Tonight

A Small Craft Advisory remains in effect through this afternoon
for gusty northwest winds up to 25 knots.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A strong cold front will move through the region early next week
and winds could approach small craft conditions.

$$

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
339 AM EDT Thu Apr 15 2021

LMZ844>849-160745-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
339 AM EDT Thu Apr 15 2021

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Conditions will be hazardous for Small Craft through this evening
for all areas, and through tonight north of Whitehall.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Conditions will be hazardous to Small Craft into Friday evening
before improving.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
408 PM EDT Wed Apr 14 2021

MIZ001>005-009-084-152015-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Gogebic-
Southern Houghton-
408 PM EDT Wed Apr 14 2021 /308 PM CDT Wed Apr 14 2021/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Tonight

Light freezing drizzle is possible tonight over the higher
terrain which could lead to locally icy roads.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Light freezing drizzle is possible Thursday morning over the
higher terrain which could lead to locally icy roads through mid-
morning.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to submit snowfall reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter using #906wx.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
408 PM EDT Wed Apr 14 2021

LSZ162-240>251-263>267-152015-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
408 PM EDT Wed Apr 14 2021 /308 PM CDT Wed Apr 14 2021/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

A few northerly gale force gusts are possible late tonight over
south central Lake Superior.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

$$

Hazardous Weather Outlook
National Weather Service Marquette MI
408 PM EDT Wed Apr 14 2021

LMZ221-248-250-152015-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
408 PM EDT Wed Apr 14 2021

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

A few northerly gale force gusts are possible tonight, mainly for
higher observations platforms. See the Nearshore Marine Forecast
for further details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

$$

NJL

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE