Alert archive / Illinois / Gale Warnings in 2021

Gale Warning 19, NWS Chicago, IL

November 20, 2021

NWS Chicago, IL issued this gale warning at Nov 20, 2021, 3:11 PM CST. It took effect at Nov 21, 2021, 3:00 PM CST. It was in force for 12 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
Nov 20, 2021, 3:11 PM CST (21:11 UTC)
In effect from
Nov 21, 2021, 3:00 PM CST
Expired
Nov 22, 2021, 3:00 AM CST
In force
12 hr
Issued by
NWS Chicago, IL

The text

As transmitted.

614 
WHUS73 KLOT 202111
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
311 PM CST Sat Nov 20 2021

LMZ740>745-210515-
/O.UPG.KLOT.GL.A.0014.211121T2100Z-211122T1800Z/
/O.NEW.KLOT.GL.W.0019.211121T2100Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
311 PM CST Sat Nov 20 2021

...GALE WARNING IN EFFECT FROM 3 PM SUNDAY TO 3 AM CST MONDAY...

* WHAT...Northwest gales to 35 kt. Significant waves to 10 ft. 
  Occasional waves to 13 ft.

* WHERE...Portions of Lake Michigan. 

* WHEN...From 3 PM Sunday to 3 AM CST Monday.

* 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.

&&

$$
6 follow-up statements
577 
WHUS73 KLOT 210338
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
938 PM CST Sat Nov 20 2021

LMZ740>745-211145-
/O.CON.KLOT.GL.W.0019.211121T2100Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
938 PM CST Sat Nov 20 2021

...GALE WARNING REMAINS IN EFFECT FROM 3 PM SUNDAY TO 3 AM CST
MONDAY...

* WHAT...Northwest gales to 35 kt. Significant waves to 10 ft. 
  Occasional waves to 13 ft.

* WHERE...Portions of Lake Michigan.

* WHEN...From 3 PM Sunday to 3 AM CST Monday.

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

* ADDITIONAL DETAILS...Winds will be strongest during a brief
  window late Sunday afternoon and early in the evening, roughly 5
  to 9 PM. A few gales to 40 to 45 kt will be possible during 
  this time, especially across the Indiana nearshore waters. 

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.

&&

$$
698 
WHUS73 KLOT 210918
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
318 AM CST Sun Nov 21 2021

LMZ740>745-211730-
/O.CON.KLOT.GL.W.0019.211121T2100Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
318 AM CST Sun Nov 21 2021

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM CST MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt. 
  Significant waves to 10 ft, occasionally to 13 ft.

* WHERE...Portions of Lake Michigan. 

* WHEN...From 3 PM this afternoon to 3 AM CST Monday.

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

* ADDITIONAL DETAILS...Winds will be strongest during a brief
  window late Sunday afternoon into the evening, roughly 5 to 10 
  PM. A few gales to 40 to 45 kt will be possible during this 
  time, especially across the Indiana nearshore waters. 

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.

&&

$$
699 
WHUS73 KLOT 211509
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
909 AM CST Sun Nov 21 2021

LMZ740>745-212315-
/O.CON.KLOT.GL.W.0019.211121T2100Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
909 AM CST Sun Nov 21 2021

...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
3 AM CST MONDAY...

* WHAT...Northwest gales to 35 kt. Significant waves to 10 ft.
  Occasional waves to 13 ft.

* WHERE...Portions of Lake Michigan. 

* WHEN...From 3 PM this afternoon to 3 AM CST Monday.

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

* ADDITIONAL DETAILS...Winds will be strongest during a brief
  window late this afternoon into this evening, roughly 5 to 10
  PM. A few gales to 45 kt will be possible during this time, 
  especially across the Indiana nearshore waters.

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.

&&

$$
423 
WHUS73 KLOT 212051
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
251 PM CST Sun Nov 21 2021

LMZ740>745-220500-
/O.CON.KLOT.GL.W.0019.211121T2100Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
251 PM CST Sun Nov 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM CST MONDAY...

* WHAT...Northwest gales to 40 kt. Significant waves to 10 ft.
  Occasional waves to 13 ft.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 3 AM CST Monday.

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

* ADDITIONAL DETAILS...A few gusts to 45 kt are possible through
  this evening, especially across the Indiana nearshore waters.

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.

&&

$$
569 
WHUS73 KLOT 220356
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
956 PM CST Sun Nov 21 2021

LMZ740>745-220900-
/O.CON.KLOT.GL.W.0019.000000T0000Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
956 PM CST Sun Nov 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM CST MONDAY...

* WHAT...Northwest gales to 35 kt. Significant waves to 10 ft.
  Occasional waves to 13 ft. Waves will be highest in the Indiana
  nearshore waters. 

* WHERE...Portions of Lake Michigan.

* WHEN...Until 3 AM CST Monday.

* 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.

&&

$$
814 
WHUS73 KLOT 220837
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
237 AM CST Mon Nov 22 2021

LMZ744-221500-
/O.EXP.KLOT.GL.W.0019.000000T0000Z-211122T0900Z/
/O.NEW.KLOT.SC.Y.0095.211122T0900Z-211122T1500Z/
Gary to Burns Harbor IN-
237 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...

* WHAT...Waves 6 ft. Occasional waves to 8 ft.

* WHERE...Gary to Burns Harbor IN.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ745-221645-
/O.EXP.KLOT.GL.W.0019.000000T0000Z-211122T0900Z/
/O.NEW.KLOT.SC.Y.0095.211122T0900Z-211123T0400Z/
Burns Harbor to Michigan City IN-
237 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CST THIS EVENING...
...GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...

* WHAT...Waves 8 ft. Occasional waves to 10 ft.

* WHERE...Burns Harbor to Michigan City IN.

* WHEN...Until 10 PM CST 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.

&&

$$

LMZ740>743-220945-
/O.EXP.KLOT.GL.W.0019.000000T0000Z-211122T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
237 AM CST Mon Nov 22 2021

...GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS MORNING...

$$

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.