Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
212 PM CDT Mon Jul 27 2026
LMZ740>745-280315-
/O.CON.KLOT.SC.Y.0074.260728T0600Z-260729T1200Z/
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-
212 PM CDT Mon Jul 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TUESDAY TO
7 AM CDT WEDNESDAY...
* WHAT...North winds to 30 kt and significant waves to 9 ft
occasionally to 12 ft expected.
* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.
* WHEN...From 1 AM Tuesday to 7 AM CDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Northern Indiana
339 PM EDT Mon Jul 27 2026
LMZ043-046-280345-
/O.CON.KIWX.SC.Y.0053.260728T0600Z-260729T0600Z/
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
339 PM EDT Mon Jul 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 AM TUESDAY TO
2 AM EDT WEDNESDAY...
* WHAT...North winds 15 to 25 knots with gusts up to 30 knots and
waves 5 to 8 feet expected Tuesday.
* WHERE...Michigan City IN to St Joseph MI.
* WHEN...From 2 AM Tuesday to 2 AM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
223 PM CDT Mon Jul 27 2026
LMZ645-646-280330-
/O.CON.KMKX.SC.Y.0073.260728T0600Z-260729T1200Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
223 PM CDT Mon Jul 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TUESDAY TO
7 AM CDT WEDNESDAY...
* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and
waves 4 to 7 ft expected.
* WHERE...Nearshore Waters from North Point Lighthouse to
Winthrop Harbor IL.
* WHEN...From 1 AM Tuesday to 7 AM CDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
957 AM EDT Mon Jul 27 2026
LMZ844>849-272200-
/O.CON.KGRR.SC.Y.0053.260728T0800Z-260729T0600Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
957 AM EDT Mon Jul 27 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO
2 AM EDT WEDNESDAY...
* WHAT...North winds 15 to 25 knots with gusts up to 30 knots
and waves 4 to 7 feet expected.
* WHERE...St Joseph to Manistee.
* WHEN...From 4 AM Tuesday to 2 AM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
