Gale Warning 13, NWS Chicago, IL

489 
WHUS73 KLOT 241548
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
948 AM CST Sat Feb 24 2018

LMZ740>745-250000-
/O.CON.KLOT.SC.Y.0020.180225T0000Z-180225T0900Z/
/O.CON.KLOT.GL.W.0013.180225T0900Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
948 AM CST Sat Feb 24 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 3 AM CST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 3 PM CST SUNDAY...

* WINDS...Southeast winds 20 to 30 kt this evening becoming 
  southwest gales to 35 kt late tonight. 

* SIGNIFICANT WAVES...To 7 ft.

* OCCASIONAL WAVES...To 9 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ261-362-364-366-563-565-567-868-250000-
/O.CON.KLOT.GL.W.0013.180225T0100Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
948 AM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 9 PM
CST SUNDAY...

* WINDS...Southeast gales 35 to 40 kt this evening becoming 
  southwest to 45 kt by Sunday morning, with storm force gusts 
  to 50 kt. 

* SIGNIFICANT WAVES...To 16 ft.

* OCCASIONAL WAVES...To 21 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250000-
/O.CON.KLOT.GL.W.0013.180225T0100Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
948 AM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
CST SUNDAY...

* WINDS...Southeast gales to 35 to 40 kt this evening becoming 
  southwest to 45 kt by Sunday morning. 

* SIGNIFICANT WAVES...To 11 ft.

* OCCASIONAL WAVES...To 14 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

331 
WHUS73 KLOT 242113
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
313 PM CST Sat Feb 24 2018

LMZ740>745-250515-
/O.CON.KLOT.SC.Y.0020.180225T0000Z-180225T0900Z/
/O.CON.KLOT.GL.W.0013.180225T0900Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
313 PM CST Sat Feb 24 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 3 PM CST SUNDAY...

* WINDS...Southeast to 30 kt this evening becoming southwest 
  gales to 35 kt late tonight, and west gales to 40 kt Sunday. 

* SIGNIFICANT WAVES...To 7 ft.

* OCCASIONAL WAVES...To 9 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ261-362-364-366-563-565-567-868-250515-
/O.CON.KLOT.GL.W.0013.180225T0100Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
313 PM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 9 PM
CST SUNDAY...

* WINDS...Southeast gales to 40 kt this evening becoming 
  southwest gales to 45 kt by late tonight. Occasional storm force
  winds to 50 kt Sunday morning.
  

* SIGNIFICANT WAVES...To 16 ft.

* OCCASIONAL WAVES...To 21 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250515-
/O.CON.KLOT.GL.W.0013.180225T0100Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
313 PM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 PM
CST SUNDAY...

* WINDS...Southeast gales to 40 kt this evening becoming 
  southwest gales to 45 kt by late tonight.

* SIGNIFICANT WAVES...To 14 ft.

* OCCASIONAL WAVES...To 18 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$


Rodriguez

900 
WHUS73 KLOT 250237
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
837 PM CST Sat Feb 24 2018


LMZ740>745-251045-
/O.CON.KLOT.SC.Y.0020.000000T0000Z-180225T0900Z/
/O.CON.KLOT.GL.W.0013.180225T0900Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
837 PM CST Sat Feb 24 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 3 PM CST SUNDAY...

* WINDS...Southeast to 30 kt this evening becoming southwest 
  gales to 35 kt late tonight, and west gales to 40 kt Sunday. 

* SIGNIFICANT WAVES...To 7 ft.

* OCCASIONAL WAVES...To 9 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ261-362-364-366-563-565-567-868-251045-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
837 PM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CST SUNDAY...

* WINDS...Southeast gales to 35 kt this evening becoming 
  southwest gales to 45 kt by late tonight. Occasional storm force
  winds to 50 kt Sunday morning. 

* SIGNIFICANT WAVES...To 16 ft.

* OCCASIONAL WAVES...To 21 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-251045-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
837 PM CST Sat Feb 24 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST SUNDAY...

* WINDS...Southeast gales to 35 kt this evening becoming 
  southwest gales to 45 kt by late tonight. 

* SIGNIFICANT WAVES...To 14 ft.

* OCCASIONAL WAVES...To 18 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$


KJB

487 
WHUS73 KLOT 250738
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
138 AM CST Sun Feb 25 2018

LMZ740>745-251545-
/O.CAN.KLOT.SC.Y.0020.000000T0000Z-180225T0900Z/
/O.EXT.KLOT.GL.W.0013.180225T0738Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
138 AM CST Sun Feb 25 2018

...GALE WARNING NOW IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Chicago has cancelled the Small
Craft Advisory and replaced it with a Gale Warning. 

* WINDS...to 40 kt occasionally to 45 kt. 

* SIGNIFICANT WAVES...To 7 ft.

* OCCASIONAL WAVES...To 9 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ261-362-364-366-563-565-567-868-251545-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
138 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING...

* WINDS...Southeast gales to 35 kt becoming southwest gales to 45
  kt by late tonight. Occasional storm force winds to 50 kt 
  Sunday morning. 

* SIGNIFICANT WAVES...To 16 ft.

* OCCASIONAL WAVES...To 21 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-251545-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
138 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WINDS...Southeast gales to 35 kt becoming southwest gales to 45
  kt by late tonight. 

* SIGNIFICANT WAVES...To 14 ft.

* OCCASIONAL WAVES...To 18 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

302 
WHUS73 KLOT 250918
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
318 AM CST Sun Feb 25 2018

LMZ261-362-364-366-563-565-567-868-251730-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
318 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING...

* WINDS...to 45 kt occasionally to 50 kt.

* SIGNIFICANT WAVES...To 14 ft.

* OCCASIONAL WAVES...To 18 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-251730-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
318 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WINDS...to 45 kt.

* SIGNIFICANT WAVES...To 11 ft.

* OCCASIONAL WAVES...To 14 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ740>745-251730-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
318 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WINDS...to 40 kt occasionally to 45 kt.

* SIGNIFICANT WAVES...To 6 ft.

* OCCASIONAL WAVES...To 8 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

BMD

006 
WHUS73 KLOT 251536
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
936 AM CST Sun Feb 25 2018

LMZ261-362-364-366-563-565-567-868-252345-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
936 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING...

* WINDS...to 45. A few storm force gusts to 50 kt this morning.

* SIGNIFICANT WAVES...To 14 ft.

* OCCASIONAL WAVES...To 18 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-252100-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
936 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WINDS...to 40 kt.

* SIGNIFICANT WAVES...To 12 ft.

* OCCASIONAL WAVES...To 16 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

LMZ740>745-252100-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
936 AM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WINDS...to 35 kt.

* SIGNIFICANT WAVES...To 6 ft.

* OCCASIONAL WAVES...To 8 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$


Rodriguez

534 
WHUS73 KLOT 252033
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
233 PM CST Sun Feb 25 2018

LMZ740>745-260400-
/O.CAN.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
/O.NEW.KLOT.SC.Y.0021.180225T2033Z-180226T0400Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
233 PM CST Sun Feb 25 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CST THIS EVENING...

The National Weather Service in Chicago has issued a Small Craft
Advisory, which is in effect until 10 PM CST this evening. The
Gale Warning has been cancelled. 

* WINDS...to 30 kt.

* SIGNIFICANT WAVES...To 5 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-252145-
/O.EXP.KLOT.GL.W.0013.000000T0000Z-180225T2100Z/
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
233 PM CST Sun Feb 25 2018

...GALE WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

Winds have subsided below gale force levels across the south half
of Lake Michigan.

$$

LMZ261-362-364-366-563-565-567-868-260300-
/O.CON.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
233 PM CST Sun Feb 25 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING...

* WINDS...Southwest to 40 kt.

* SIGNIFICANT WAVES...To 12 ft.

* OCCASIONAL WAVES...To 16 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

KMD

375 
WHUS73 KLOT 260239
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
839 PM CST Sun Feb 25 2018


LMZ261-362-364-366-563-565-567-868-260345-
/O.EXP.KLOT.GL.W.0013.000000T0000Z-180226T0300Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan Holland to Whitehall MI 5 nm off shore to mid-
line of lake-
839 PM CST Sun Feb 25 2018

...GALE WARNING WILL EXPIRE AT 9 PM CST THIS EVENING...


$$

LMZ740>745-260400-
/O.CON.KLOT.SC.Y.0021.000000T0000Z-180226T0400Z/
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
839 PM CST Sun Feb 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CST THIS
EVENING...

* WINDS...to 25 kt.

* SIGNIFICANT WAVES...To 5 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


KJB

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
232 AM CST Sat Feb 24 2018

.SHORT TERM...
243 PM CST

Through Saturday Night...

For the remainder of this afternoon and into the evening, breezy and
cloudy conditions will persist as the the system that brought some
additional rain overnight moves off to the east.  A zone of height
rises over the region in between an exiting low and high pressure
building across the northern plains to the middle and upper
Mississippi Valley.  As the high builds across the Great Lakes
overnight tonight, a warm front associated with a southern stream
system will set up along the Ohio Valley.  A shallow layer of cold
air will remain in place at the surface across the region, but
aloft, warm, moist advection will set up in advance of the southern
stream system, setting up the potential for some freezing/frozen
precipitation in the morning.  There should be a relatively sharp
cutoff to the precipitation on the northern edge, where the cold air
will be in place.  There is still some uncertainty as to the
progression of p-type as the precipitation shield spreads northward,
but the general trend should be for an area of all snow on the far
northern edge, with a narrow zone of a wintry mix transitioning over
to all rain to the south.  Through the morning hours, both the nrn
edge of the pcpn shield will spread north while the zone of frozen
and freezing pcpn also shifts north, to be quickly followed by the
transition over to all liquid as sfc temperatures rise into the
middle 30s by late morning.

However, of greater concern for Saturday into Saturday night, will
be the additional rainfall moving across areas already impacted by
major flooding.  Latest guidance suggests an area of 0.25 to 0.50
inches of additional rainfall for the period from early Saturday
morning to early Sunday morning.  As of this afternoon, most rivers
across the region, including the Illinois, Des Plaines, Du Page and
Fox Rivers have either crested or will crest soon.  Portions or the
Rock River are not expected to crest until Sunday or Monday as the
crest wave moves downstream.  The Iroquois and Kankakee Rivers and
locations near these rivers will remain a concern through the
weekend and into next week.  The Iroquois River at Chebanse is still
rising as water from upstream on the Iroquois river as well as flow
from Sugar Creek and smaller tributaries.  The Kankakee River in
northwestern Indiana will remain above major flood stage well into
next week as the river is particularly slow to subside there.  The
Kankakee River in Kankakee County will also be slow to subside.
While any additional rainfall will not be welcome at areas already
impacted by significant flooding, since the rainfall will occur over
a 24-30 hour period, it should not contribute to significant rises,
and perhaps delaying the river levels falling.

&&

.LONG TERM...

Sunday through Friday...

153 pm...Primary forecast concerns are the potential for more
rain Wednesday/Thursday and the chance of mixed precip/snow
Thursday.

As low pressure lifts north across the upper lakes region
Sunday...strong/gusty westerly winds will diminish on Sunday but
there could be a period Sunday morning when wind gusts are still
in the 35-40 mph range.

High pressure will move from the central Plains Sunday to the
Ohio Valley Monday with dry conditions expected through Tuesday
evening. With some sunshine expected...temps likely to moderate
back near 50 on Monday and into the 50s on Tuesday. With no snow
pack...its possible these temps could be a bit low but can trend
higher as this time period approaches.

Low pressure is expected to develop over the Plains Tuesday night
into Wednesday and move near northern IL by Thursday morning.
Still considerable differences with the gfs showing a rather
strong low at that time vs. a weaker ecmwf low. Ahead of this
low...showers will be possible Tuesday night into Wednesday with
a period of heavier precip possible Wednesday night into Thursday
morning. While the timing looks similar...the large differences in
the strength of the low make for an uncertain forecast. In
addition...small track changes could make the difference between
all rain or a stripe of accumulating snow...which currently would
be most favored across far northern IL into southern WI. Current
qpf forecasts would suggest the potential for a half inch to an
inch of rain with this system. High pressure will then build
across the region Friday. cms

&&

.AVIATION...
For the 06Z TAFs...

The main forecast concern continues to center around CIG trends
though the period, as well as the potential for more IFR to LIFR
conditions this evening with the next batch of rain and fog.
Strong westerly winds are then looking likely late tonight into
Sunday morning.

Surface high pressure over southern Minnesota will shift eastward
towards the Western Great Lakes around daybreak. As this occurs,
expect light northerly winds overnight becoming easterly during
the day and gradually increasing into this evening. The main
concern for the winds is overnight tonight into Sunday morning.
Following the passage a surface low and associated cold frontal
passage late tonight, it is looking like a period of strong
westerly winds (gusts of 30-35 kt) will set up over the area into
early Sunday morning.

The main concern in regards to CIGS and visibilities will be this
evening. During this period the chances for rain and fog will
increase across the area in advance of the next area of low
pressure approaching the area from the southwest. It appears
likely that the area will get a period of very low CIGs (LIFR) and
lower visibilities in fog and rain, especially during the evening.
Conditions should improve overnight with the passage of the cold
front and the increase in westerly winds.

KJB

&&

.MARINE...
232 AM CST

Low pressure over the TX panhandle will rapidly deepen as it
quickly tracks northeast across the western Great Lakes tonight
and continue to rapidly deepen as it moves into Canada Sunday.
Expecting a period of easterly gales to develop ahead of the low
this evening, except over far southern portions of the lake where
milder air over the colder lake will result in somewhat more
stable conditions. For that reason, opted to run with a small
craft advisory this evening for the easterly winds for the
nearshore water. Behind the front, look for a period of high end
southwesterly gales behind the fast moving and quickly deepening
low. Quite concerned that there will be a window, perhaps up to 6
hours long or so, of southwest storm force winds over the far
northern portions of the lake, especially toward the Straits.
Strongly considered a Storm Watch for that area, but opted to just
introduce storm force gusts in the north for now and will let the
day shift get a look at latest guidance later this morning and
consider upgrading to a storm warning at that time. Gales will
quickly subside later Sunday afternoon and evening from south to
north with fairly quiet conditions on the lake the first part of
next week before the next storm approached later in the week.

- Izzi

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...Small Craft Advisory...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-
     LMZ745...6 PM Saturday to 3 AM Sunday.

     Gale Warning...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-LMZ745...3 AM
     Sunday to 3 PM Sunday.

     Gale Warning...LMZ777-LMZ779...7 PM Saturday to 3 PM Sunday.

&&

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Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
335 PM CST Fri Feb 23 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
242145-
Winnebago-Boone-McHenry-Lake Illinois-Ogle-Lee-De Kalb-Kane-
DuPage-Cook-La Salle-Kendall-Grundy-Will-Kankakee-Livingston-
Iroquois-Ford-Lake Indiana-Porter-Newton-Jasper-Benton-
335 PM CST Fri Feb 23 2018 /435 PM EST Fri Feb 23 2018/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...Tonight.

WEATHER HAZARDS EXPECTED:

  Limited Ice Accumulation Risk.

DISCUSSION:

There is a chance of a light freezing rain after midnight...
mainly south of Interstate 80 corridor.

Numerous area rivers will remain in flood.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
  Limited Thunderstorm Risk.
  Limited Ice Accumulation Risk.
Sunday...
  Limited Non Thunderstorm Wind Risk.

DISCUSSION:

Saturday morning the area of very light freezing rain expands
north to the I-88 corridor, then becomes all rain by afternoon.
Rainfall amounts Saturday and Saturday night near half an inch are
possible across southern portions of the outlook area. This could
slow the fall of river levels or produce new rises in some areas.
There is a slight chance of thunderstorms Saturday evening.
Strong southwest winds develop Saturday night into Sunday.

Numerous area rivers will remain in flood.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

&&

LMZ740>745-242145-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
335 PM CST Fri Feb 23 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
  Limited Thunderstorm Risk.
  Gale Force Winds or Very Hazardous Waves are likely.
Sunday...
  Gale Force Winds or Very Hazardous Waves are likely.
Wednesday and Thursday...
  Hazardous Conditions for Small Craft are likely.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-242145-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
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 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
335 PM CST Fri Feb 23 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Gale force winds are likely Saturday night and Sunday.

&&

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