Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
352 PM CST Mon Dec 15 2025
LMZ740>745-160600-
/O.EXP.KLOT.SC.Y.0113.000000T0000Z-251215T2200Z/
/O.NEW.KLOT.SC.Y.0114.251216T1600Z-251217T0900Z/
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-
352 PM CST Mon Dec 15 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 3 AM CST
WEDNESDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 PM CST THIS AFTERNOON...
* WHAT...Southwest winds to 25 kt and significant waves to 5 ft
expected.
* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.
* WHEN...From 10 AM Tuesday to 3 AM CST 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
303 PM EST Mon Dec 15 2025
LMZ844>849-160415-
/O.EXP.KGRR.GL.W.0032.000000T0000Z-251215T2000Z/
/O.CON.KGRR.SC.Y.0111.000000T0000Z-251216T0600Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
303 PM EST Mon Dec 15 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST
TUESDAY...
...GALE WARNING HAS EXPIRED...
* WHAT...West winds 15 to 25 knots and waves 6 to 9 feet.
* WHERE...St Joseph to Manistee.
* WHEN...Until 1 AM EST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
345 PM CST Mon Dec 15 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-162145-
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-
345 PM CST Mon Dec 15 2025 /445 PM EST Mon Dec 15 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Freezing Fog Risk overnight.
DISCUSSION...
Patchy fog will develop overnight, and where it develops it could
become locally dense. Temperatures will fall well below freezing again,
and therefore fog may freeze on surfaces if it becomes dense.
This potential is highest west of the Fox River Valley and north of
Interstate 80.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Thursday...
Elevated Non Thunderstorm Wind Risk.
Limited Snow Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
Hazardous Weather Outlook
National Weather Service Northern Indiana
440 PM EST Mon Dec 15 2025
INZ005>009-012>015-017-018-020-022>027-032>034-103-104-116-203-204-
216-MIZ078>081-177-277-OHZ001-002-004-005-015-016-024-025-162145-
Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski-Marshall-
Fulton IN-Whitley-Allen IN-White-Cass IN-Miami-Wabash-Huntington-
Wells-Adams-Grant-Blackford-Jay-Northern La Porte-
Eastern St. Joseph IN-Northern Kosciusko-Southern La Porte-
Western St. Joseph IN-Southern Kosciusko-Cass MI-St. Joseph MI-
Branch-Hillsdale-Northern Berrien-Southern Berrien-Williams-
Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-Allen OH-
440 PM EST Mon Dec 15 2025 /340 PM CST Mon Dec 15 2025/
This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.
.DAY ONE...Tonight.
Some drifting/blowing of snow may continue in rural areas this
evening with breezy southwest winds. Cold temperatures in the lower
teens across the area overnight.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
307 PM EST Mon Dec 15 2025
LMZ844>849-162015-
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 PM EST Mon Dec 15 2025
This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.
.DAY ONE...This Afternoon and Tonight
Wind and waves will be hazardous to small craft.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
Wind and waves will be hazardous to small craft.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Indianapolis IN
238 PM EST Mon Dec 15 2025
INZ021-028>031-035>049-051>057-060>065-067>072-161945-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
238 PM EST Mon Dec 15 2025
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
Single digit winds chills return late tonight.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Freezing drizzle is possible late Tuesday night into Wednesday
morning. There is also potential for a flash freeze of rain on area
roads Thursday night as temperatures fall quickly along with locally
dense fog.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
$$
Hazardous Weather Outlook
National Weather Service Cleveland OH
116 PM EST Mon Dec 15 2025
OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-161830-
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-
Ashtabula Inland-Hancock-Seneca-Huron-Medina-Summit-Portage-Trumbull-
Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-
Holmes-Knox-Ashtabula Lakeshore-Northern Erie-Southern Erie-
116 PM EST Mon Dec 15 2025
This Hazardous Weather Outlook is for north central Ohio, northeast
Ohio, northwest Ohio and northwest Pennsylvania.
.DAY ONE...This afternoon and tonight.
Wind chills as cold as 0 degrees to -10 degrees are expected this
evening. Wind chills will begin to rise to single digits overnight
with calm winds and continue rising throughout the day Tuesday.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Hazardous weather is not expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
