Alert archive / Illinois / Gale Warnings in 2021

Gale Warning 9, NWS Chicago, IL

March 24, 2021

NWS Chicago, IL issued this gale warning at Mar 24, 2021, 3:16 PM CDT. It took effect at Mar 25, 2021, 7:00 PM CDT. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 24, 2021, 3:16 PM CDT (20:16 UTC)
In effect from
Mar 25, 2021, 7:00 PM CDT
Expired
Mar 26, 2021, 6:08 AM CDT
In force
11 hr
Issued by
NWS Chicago, IL

The text

As transmitted.

053 
WHUS73 KLOT 242016
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
316 PM CDT Wed Mar 24 2021

LMZ743>745-250430-
/O.CON.KLOT.SC.Y.0027.000000T0000Z-210325T0300Z/
/O.UPG.KLOT.GL.A.0005.210326T0000Z-210326T1200Z/
/O.NEW.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
316 PM CDT Wed Mar 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 7 PM THURSDAY TO 7 AM CDT FRIDAY...

* WHAT...For the Gale Warning, north gales to 45 kt and waves 10
  to 14 ft occastionally to 18 ft expected. For the Small Craft 
  Advisory, southwest winds to 30 kt.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Gale Warning, from 7 PM Thursday to 7 AM CDT 
  Friday. For the Small Craft Advisory, until 10 PM CDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A few storm force gusts to 50 kt are
  possible for a two to four hour window around midnight Thursday
  into Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ740>742-250430-
/O.CON.KLOT.SC.Y.0027.000000T0000Z-210325T0300Z/
/O.UPG.KLOT.GL.A.0005.210326T0000Z-210326T1200Z/
/O.NEW.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
316 PM CDT Wed Mar 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 7 PM THURSDAY TO 7 AM CDT FRIDAY...

* WHAT...For the Gale Warning, north gales to 45 kt and waves 8 to
  12 ft occastionally to 16 ft expected. For the Small Craft
  Advisory, southwest winds to 30 kt and waves up to 5 ft.

* WHERE...Illinois nearshore waters.

* WHEN...For the Gale Warning, from 7 PM Thursday to 7 AM CDT 
  Friday. For the Small Craft Advisory, until 10 PM CDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
9 follow-up statements
483 
WHUS73 KLOT 250250
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
950 PM CDT Wed Mar 24 2021

LMZ743>745-251100-
/O.EXP.KLOT.SC.Y.0027.000000T0000Z-210325T0300Z/
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
950 PM CDT Wed Mar 24 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THURSDAY TO 7 AM CDT
FRIDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM CDT THIS EVENING...

* WHAT...North winds 20 to 30 kt with gusts up to 45 kt and 
  waves 7 to 12 ft expected for the Gale Warning.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Gale Warning, from 7 PM Thursday to 7 AM CDT
  Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ740>742-251100-
/O.EXT.KLOT.SC.Y.0027.000000T0000Z-210325T0600Z/
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
950 PM CDT Wed Mar 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 AM CDT THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 7 PM THURSDAY TO 7 AM CDT
FRIDAY...

* WHAT...For the Gale Warning, north gales to 45 kt and waves 8 to
  12 ft occasionally to 16 ft expected. For the Small Craft
  Advisory, west winds 25 to 30 kt and waves up to 4 ft.

* WHERE...Illinois nearshore waters.

* WHEN...For the Gale Warning, from 7 PM Thursday to 7 AM CDT 
  Friday. For the Small Craft Advisory, until 1 AM CDT Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
536 
WHUS73 KLOT 250611
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
111 AM CDT Thu Mar 25 2021

LMZ740>742-251415-
/O.EXP.KLOT.SC.Y.0027.000000T0000Z-210325T0600Z/
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
111 AM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
CDT FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...For the Gale Warning, north gales to 45 kt and waves 8 to
  12 ft occasionally to 16 ft expected.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...From 7 PM this evening to 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-251415-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
111 AM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
CDT FRIDAY...

* WHAT...North gales to 45 kt and waves 10 to 14 ft occasionally
  to 18 ft expected.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...From 7 PM this evening to 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

RC
000 
WHUS73 KLOT 250915
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
415 AM CDT Thu Mar 25 2021

LMZ743>745-251715-
/O.EXT.KLOT.GL.W.0009.210326T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
415 AM CDT Thu Mar 25 2021

...GALE WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO 9 AM CDT
FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 16 ft,
  and occasional waves up to 21 ft expected. A few storm force 
  gusts to 50 kt are possible overnight.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...From 7 PM this evening to 9 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ740>742-251715-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
415 AM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 14 ft,
  and occasional waves up to 18 ft expected. A few storm force
  gusts to 50 kt are possible offshore overnight.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...From 7 PM this evening to 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

RC
148 
WHUS73 KLOT 251454
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
954 AM CDT Thu Mar 25 2021

LMZ740>742-252300-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
954 AM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 14 ft,
  occasional waves up to 18 ft expected. A few storm force gusts
  to 50 kt are possible offshore overnight.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...From 7 PM this evening to 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-252300-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
954 AM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM
CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 16 ft,
  and occasional waves up to 21 ft expected. A few storm force 
  gusts to 50 kt are possible overnight.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...From 7 PM this evening to 9 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
806 
WHUS73 KLOT 251937
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
237 PM CDT Thu Mar 25 2021

LMZ740>742-260345-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
237 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 14 ft, 
  occasional waves up to 18 ft expected. A few storm force gusts 
  to 50 kt are possible offshore overnight.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...From 7 PM this evening to 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-260345-
/O.CON.KLOT.GL.W.0009.210326T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
237 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM
CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 16 ft, 
  and occasional waves up to 21 ft expected. A few storm force 
  gusts to 50 kt are possible overnight.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...From 7 PM this evening to 9 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
209 
WHUS73 KLOT 260005
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
705 PM CDT Thu Mar 25 2021

LMZ740>742-260815-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
705 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 14 ft, 
  occasional waves up to 18 ft expected. A few storm force gusts 
  to 50 kt are possible offshore overnight.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...Through 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-260815-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
705 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT FRIDAY...

* WHAT...North gales up to 45 kt, significant waves up to 14 ft,
  and occasional waves up to 18 ft expected. A few storm force 
  gusts to 50 kt are possible overnight.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...Through 9 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
043 
WHUS73 KLOT 260300
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
1000 PM CDT Thu Mar 25 2021

LMZ740>742-261100-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1000 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY...

* WHAT...North gales up to 40 kt with a few to 45 kt possible,
  significant waves up to 14 ft, occasional waves up to 18 ft
  expected.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...Through 7 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-261100-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1000 PM CDT Thu Mar 25 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT FRIDAY...

* WHAT...North gales up to 40 kt with a few to 45 kt possible,
  significant waves up to 14 ft, and occasional waves up to 18 ft
  expected.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...Through 9 AM CDT Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
867 
WHUS73 KLOT 260850
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
350 AM CDT Fri Mar 26 2021

LMZ740>742-261200-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
350 AM CDT Fri Mar 26 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...

* WHAT...North winds 20 to 25 kt with gusts up to 35 kt and waves
  8 to 11 ft.

* WHERE...Northerly Island to Calumet Harbor IL, Winthrop Harbor 
  to Wilmette Harbor IL and Wilmette Harbor to Northerly Island 
  IL.

* WHEN...Until 7 AM CDT this morning.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ743>745-261400-
/O.CON.KLOT.GL.W.0009.000000T0000Z-210326T1400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
350 AM CDT Fri Mar 26 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...

* WHAT...Northwest winds 20 to 25 kt with gusts up to 35 kt and 
  waves 10 to 14 ft.

* WHERE...Gary to Burns Harbor IN, Burns Harbor to Michigan City 
  IN and Calumet Harbor IL to Gary IN.

* WHEN...Until 9 AM CDT this morning.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$
295 
WHUS73 KLOT 261108
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
608 AM CDT Fri Mar 26 2021

LMZ740>742-261915-
/O.CAN.KLOT.GL.W.0009.000000T0000Z-210326T1200Z/
/O.NEW.KLOT.SC.Y.0028.210326T1108Z-210326T2000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
608 AM CDT Fri Mar 26 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
  waves 7 to 10 ft. 

* WHERE...Winthrop Harbor to Wilmette Harbor IL, Wilmette Harbor 
  to Northerly Island IL and Northerly Island to Calumet Harbor 
  IL.

* WHEN...Until 3 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.

&&

$$

LMZ743>745-261915-
/O.CAN.KLOT.GL.W.0009.000000T0000Z-210326T1400Z/
/O.NEW.KLOT.SC.Y.0028.210326T1108Z-210327T0000Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
608 AM CDT Fri Mar 26 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...GALE WARNING IS CANCELLED...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and 
  waves 8 to 11 ft.

* WHERE...Calumet Harbor IL to Gary IN, Gary to Burns Harbor IN 
  and Burns Harbor to Michigan City IN.

* WHEN...Until 7 PM CDT 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.

&&

$$

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 24, 3:52 AM CDTGale WatchLOT11 hr

Nearby

Gale Warnings in Illinois, 2021Every gale warning 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.