WHUS73 KLOT 050903

MWWLOT



URGENT - MARINE WEATHER MESSAGE

National Weather Service Chicago IL

303 AM CST Thu Nov 5 2026



LMZ740>742-051715-

/O.EXT.KLOT.SC.Y.0092.000000T0000Z-261105T1500Z/

/O.NEW.KLOT.SC.Y.0093.261106T0000Z-261107T1500Z/

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

303 AM CST Thu Nov 5 2026



...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS

MORNING...

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM

CST SATURDAY...



* WHAT...For the first Small Craft Advisory, southwest winds to 

  25 kt. For the second Small Craft Advisory, northwest winds to 

  30 kt and significant waves to 10 ft occasionally to 13 ft 

  expected.



* WHERE...Winthrop Harbor to Calumet Harbor IL.



* WHEN...For the first Small Craft Advisory, until 9 AM CST this 

  morning. For the second Small Craft Advisory, from 6 PM this 

  evening to 9 AM CST 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.



&&



$$



LMZ743>745-051715-

/O.EXT.KLOT.SC.Y.0092.000000T0000Z-261105T1500Z/

/O.NEW.KLOT.SC.Y.0093.261106T0000Z-261107T2100Z/

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

Burns Harbor to Michigan City IN-

303 AM CST Thu Nov 5 2026



...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS

MORNING...

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 3 PM

CST SATURDAY...



* WHAT...For the first Small Craft Advisory, southwest winds to 25

  kt and significant waves to 4 ft. For the second Small Craft

  Advisory, northwest winds to 30 kt with a few gale force gusts

  to 35 kt and significant waves to 14 ft occasionally to 18 ft 

  expected.



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



* WHEN...For the first Small Craft Advisory, until 9 AM CST this 

  morning. For the second Small Craft Advisory, from 6 PM this 

  evening to 3 PM CST 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.



&&



$$