Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Northern Indiana
439 AM EDT Tue Jul 21 2026
LMZ043-211645-
/O.CON.KIWX.SC.Y.0052.000000T0000Z-260723T0500Z/
New Buffalo MI to St Joseph MI-
439 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT
THURSDAY...
* WHAT...West winds 15 to 20 knots Tuesday increasing to northwest
winds 15 to 25 knots with gusts up to 30 knots Tuesday night.
Winds decrease Wednesday night. Waves 3 to 5 feet building to 5
to 9 feet Tuesday night and Wednesday before receding late on
Wednesday.
* WHERE...New Buffalo MI to St Joseph MI.
* WHEN...Until 1 AM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Andersen
URGENT - MARINE WEATHER MESSAGE
National Weather Service Northern Indiana
439 AM EDT Tue Jul 21 2026
LMZ046-211645-
/O.EXA.KIWX.SC.Y.0052.000000T0000Z-260723T0500Z/
Michigan City IN to New Buffalo MI-
439 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY...
* WHAT...West winds 15 to 20 knots Tuesday increasing to northwest
winds 15 to 25 knots with gusts up to 30 knots Tuesday night.
Winds decrease Wednesday night. Waves 3 to 5 feet building to 5
to 9 feet Tuesday night and Wednesday before receding late on
Wednesday.
* WHERE...Michigan City IN to New Buffalo MI.
* WHEN...Until 1 AM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
229 AM CDT Tue Jul 21 2026
LMZ740>742-211530-
/O.EXT.KLOT.SC.Y.0073.000000T0000Z-260723T0300Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
229 AM CDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM CDT WEDNESDAY...
* WHAT...West winds to 25 kt today becoming north winds to 25 kt
this evening with significant waves to 9 ft occasionally to 12
ft on Wednesday expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...Until 10 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
229 AM CDT Tue Jul 21 2026
LMZ743>745-211530-
/O.EXT.KLOT.SC.Y.0073.000000T0000Z-260723T0900Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
229 AM CDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM CDT THURSDAY...
* WHAT...West winds to 25 kt today becoming north winds to 25 kt
this evening with significant waves to 10 ft occasionally to 13
ft on Wednesday expected.
* WHERE...Calumet Harbor IL to Michigan City IN.
* WHEN...Until 4 AM CDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
307 AM EDT Tue Jul 21 2026
LMZ844>849-211515-
/O.CON.KGRR.SC.Y.0051.000000T0000Z-260723T0300Z/
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-
307 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT
WEDNESDAY...
* WHAT...Northwest winds 15 to 25 knots with gusts up to 30 knots
and waves 5 to 8 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until 11 PM 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1258 AM CDT Tue Jul 21 2026
LMZ645-646-211400-
/O.EXT.KMKX.SC.Y.0071.000000T0000Z-260722T2100Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1258 AM CDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM CDT WEDNESDAY...
* WHAT...Northwest to North winds 15 to 25 kt and waves 4 to 6
ft.
* WHERE...Nearshore Waters from North Point Lighthouse to
Winthrop Harbor IL.
* WHEN...Until 4 PM CDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Beach Hazards Statement
Lakeshore Hazard Message
National Weather Service Milwaukee/Sullivan WI
347 AM CDT Tue Jul 21 2026
WIZ052-060-066-071-072-211700-
/O.NEW.KMKX.BH.S.0013.260721T2200Z-260722T1800Z/
Sheboygan-Ozaukee-Milwaukee-Racine-Kenosha-
347 AM CDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
* WHAT...Life threatening waves of 4 to 9 feet and dangerous
currents are expected.
* WHERE...Sheboygan, Ozaukee, Milwaukee, Racine and Kenosha
Counties.
* WHEN...From this afternoon through Wednesday afternoon.
* IMPACTS...Dangerous swimming conditions are expected due to
high waves and onshore winds.
* ADDITIONAL DETAILS...Highest waves expected near Wind Point.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay out of the water and away from dangerous areas like piers
and breakwalls. Strong structural and longshore currents are
expected. Rip currents are possible.
&&
$$
Coastal Hazard Message
National Weather Service Northern Indiana
446 AM EDT Tue Jul 21 2026
INZ103-211700-
/O.EXB.KIWX.BH.S.0007.260721T2300Z-260723T1200Z/
Northern La Porte-
346 AM CDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS EVENING THROUGH
THURSDAY MORNING...
* WHAT...High wave action, strong currents, and life-threatening
swimming conditions expected. Piers will be heavily swamped by
waves.
* WHERE...Northern La Porte county.
* WHEN...From this evening through Thursday morning.
* IMPACTS...Strong currents can pull swimmers into deeper water
and high waves can sweep people off piers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.
&&
$$
Coastal Hazard Message
National Weather Service Northern Indiana
446 AM EDT Tue Jul 21 2026
MIZ177-277-211700-
/O.CON.KIWX.BH.S.0007.000000T0000Z-260723T0500Z/
Northern Berrien-Southern Berrien-
446 AM EDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
WEDNESDAY NIGHT...
* WHAT...High wave action, strong currents, and life-threatening
swimming conditions expected. Piers will be heavily swamped by
waves.
* WHERE...Northern Berrien and Southern Berrien counties.
* WHEN...Through late Wednesday night.
* IMPACTS...Strong currents can pull swimmers into deeper water
and high waves can sweep people off piers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid hazardous swimming conditions.
Do not venture out on piers.
&&
$$
Andersen
Coastal Hazard Message
National Weather Service Chicago IL
233 AM CDT Tue Jul 21 2026
ILZ006-103-104-211545-
/O.NEW.KLOT.BH.S.0008.260721T2100Z-260723T0300Z/
Lake IL-Northern Cook-Central Cook-
233 AM CDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY EVENING...
* WHAT...High wave action and dangerous currents at Lake Michigan
beaches expected.
* WHERE...Lake IL, Northern Cook and Central Cook Counties.
* WHEN...From this afternoon through Wednesday evening.
* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers. For information on swim
advisories or bans at Chicago beaches: www. cpdbeaches. com.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
&&
$$
Coastal Hazard Message
National Weather Service Chicago IL
233 AM CDT Tue Jul 21 2026
INZ001-002-211545-
/O.NEW.KLOT.BH.S.0008.260721T2300Z-260723T1200Z/
Lake IN-Porter-
233 AM CDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS EVENING THROUGH
THURSDAY MORNING...
* WHAT...High wave action and dangerous currents at Lake Michigan
beaches expected.
* WHERE...Lake IN and Porter Counties.
* WHEN...From this evening through Thursday morning.
* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
&&
$$
Coastal Hazard Message
National Weather Service Grand Rapids MI
306 AM EDT Tue Jul 21 2026
MIZ037-043-050-056-064-071-211515-
/O.CON.KGRR.BH.S.0015.000000T0000Z-260723T0300Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
306 AM EDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...
* WHAT...High wave action, strong currents, and dangerous
swimming conditions expected. Piers may be heavily swamped by
waves.
* WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren
counties.
* WHEN...Through Wednesday evening.
* IMPACTS...Strong currents can pull swimmers into deeper water
and high waves can sweep people off piers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid hazardous swimming conditions
and do not venture out on piers. Please check with your local
authorities on potential beach closures.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
233 AM CDT Tue Jul 21 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-220745-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
233 AM CDT Tue Jul 21 2026 /333 AM EDT Tue Jul 21 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk ending by daybreak.
High Swim Risk Lake Michigan Beaches this evening.
DISCUSSION...
A thunderstorm may develop prior to daybreak and produce damaging
hail. Most areas will be dry.
Waves will build on Lake Michigan this evening leading to a High
Swim Risk.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
High Swim Risk Lake Michigan Beaches.
Saturday and Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
A High Swim Risk will continue through early Thursday morning.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at around 30 mph.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
233 AM CDT Tue Jul 21 2026
LMZ740>745-220745-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
233 AM CDT Tue Jul 21 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Hazardous conditions for small craft.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Hazardous conditions for small craft are likely.
Saturday and Sunday...
Limited Thunderstorm Risk.
$$
Borchardt
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
116 AM CDT Tue Jul 21 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-220630-
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-
116 AM CDT Tue Jul 21 2026
This Hazardous Weather Outlook is for the open waters of Lake
Michigan.
.DAY ONE...Today and Tonight
Breezy north to northwest winds with a few gusts to gale force
expected late this afternoon into tonight.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
No hazardous weather is expected at this time.
$$
Sheppard
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
116 AM CDT Tue Jul 21 2026
LMZ643>646-220630-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
116 AM CDT Tue Jul 21 2026
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Today and Tonight
A Small Craft Advisory remains in effect for all nearshore zones
today and tonight. Gusty northwest winds are expected today, with
gusty north winds and building waves tonight.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
The Small Craft Advisory continues through Wednesday afternoon
for zones south of North Point Light due to lingering waves.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
116 AM CDT Tue Jul 21 2026
WIZ046-047-051-052-056>060-062>072-220630-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
116 AM CDT Tue Jul 21 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Today and Tonight
There is a High Swim Risk for Lake Michigan beaches in Sheboygan
and Ozaukee Counties through early this morning. Life threatening
waves and currents are expected. Stay out of the water, and away
from dangerous areas like piers, breakwalls and river outlets.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Indianapolis IN
1230 AM EDT Tue Jul 21 2026
INZ021-028>031-035>049-051>057-060>065-067>072-220430-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
1230 AM EDT Tue Jul 21 2026
This hazardous weather outlook is for central Indiana.
.DAY ONE...Tonight.
Showers late tonight will include embedded thunderstorms. Isolated
damaging winds can not be ruled out.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Thunderstorms are expected early Tuesday morning and again in the
afternoon to evening hours, with the potential for severe weather.
Damaging winds are the primary threat. Heavy rain may produce
isolated flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed late Monday night and Tuesday.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
$$
AGM
