Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
244 PM CDT Sat Nov 1 2025
LMZ740>742-020345-
/O.NEW.KLOT.SC.Y.0095.251102T2100Z-251103T1600Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
244 PM CDT Sat Nov 1 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM SUNDAY TO 10 AM CDT
MONDAY...
* WHAT...Southwest winds to 25 kt and significant waves to 4 ft
expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...From 3 PM Sunday to 10 AM CDT Monday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
244 PM CDT Sat Nov 1 2025
LMZ743>745-020345-
/O.NEW.KLOT.SC.Y.0095.251103T0000Z-251103T1600Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
244 PM CDT Sat Nov 1 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM SUNDAY TO 10 AM CDT
MONDAY...
* WHAT...Southwest winds to 25 kt and significant waves to 5 ft
expected.
* WHERE...Calumet Harbor IL to Michigan City IN.
* WHEN...From 6 PM Sunday to 10 AM CDT Monday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
237 PM CDT Sat Nov 1 2025
LMZ645-646-020345-
/O.NEW.KMKX.SC.Y.0094.251102T1900Z-251103T1600Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
237 PM CDT Sat Nov 1 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM SUNDAY TO 10 AM CDT
MONDAY...
* WHAT...Southwest winds 15 to 25 kt and waves 3 to 5 ft expected.
* WHERE...Nearshore Waters from North Point Lighthouse to
Winthrop Harbor IL.
* WHEN...From 1 PM Sunday to 10 AM CDT Monday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
308 PM EDT Sat Nov 1 2025
LMZ844-845-020315-
/O.CON.KGRR.SC.Y.0091.000000T0000Z-251102T0000Z/
/O.NEW.KGRR.SC.Y.0092.251102T2100Z-251104T1200Z/
St Joseph to South Haven MI-South Haven to Holland MI-
308 PM EDT Sat Nov 1 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM SUNDAY TO 7 AM EDT
TUESDAY...
* WHAT...For the first Small Craft Advisory, west winds 15 to 20
knots and waves 3 to 5 feet. For the second Small Craft
Advisory, west winds 15 to 25 knots with gusts up to 30 knots
and waves 7 to 10 feet expected.
* WHERE...St Joseph to Holland.
* WHEN...For the first Small Craft Advisory, until 8 PM EDT this
evening. For the second Small Craft Advisory, from 4 PM Sunday
to 7 AM EDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 PM CDT Sat Nov 1 2025
LMZ740>745-022000-
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-
247 PM CDT Sat Nov 1 2025
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Waterspout Risk this evening.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Late Sunday afternoon through Monday morning...
Hazardous conditions for small craft are likely.
Wednesday through Friday...
Hazardous conditions for small craft are likely at times.
$$
- Izzi
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
245 PM CDT Sat Nov 1 2025
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-021945-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
245 PM CDT Sat Nov 1 2025
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...TONIGHT
Dense fog is possible late tonight into mid morning Sunday.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
Hazardous Weather Outlook
National Weather Service Lincoln IL
242 PM CDT Sat Nov 1 2025
ILZ027>031-036>038-040>042-047>051-021200-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-Cass-Menard-Scott-Morgan-Sangamon-
242 PM CDT Sat Nov 1 2025
This Hazardous Weather Outlook is for central Illinois and west
central Illinois.
.DAY ONE...Tonight.
There is a 20-30% chance of fog west of I-55 overnight. With low
temperatures below freezing, if fog does develop, slick spots could
result on elevated surfaces, such as bridges and overpasses.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
240 PM CDT Sat Nov 1 2025
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-021945-
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-
240 PM CDT Sat Nov 1 2025
This Hazardous Weather Outlook is for the open waters of Lake
Michigan.
.DAY ONE...Tonight
Waterspouts are possible over the southern half of Lake Michigan
today.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
A Gale Warning is in effect late Sunday afternoon through early
Monday morning across the northern half of Lake Michigan.
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
453 AM EDT Sat Nov 1 2025
LMZ844>849-020900-
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-
453 AM EDT Sat Nov 1 2025
This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.
.DAY ONE...Today and Tonight
A low risk for a waterspout exists today. There is also a low risk
for a lightning strike or two over the water with any lake effect
showers that develop.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
Gales are possible Sunday evening into Monday especially near and
north of Pentwater, but gales are not out of the question south of
there on Monday. Waves in excess of 10 feet are likely.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
