Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Chicago IL
1245 PM CST Sat Dec 6 2025
ILZ021-107-108-INZ001-002-070445-
/O.EXA.KLOT.WW.Y.0010.251207T0600Z-251207T1500Z/
Grundy-Southern Will-Eastern Will-Lake IN-Porter-
Including the cities of Chesterton, Wilmington, Peotone, Beecher,
Gary, Valparaiso, Portage, Hammond, Coal City, Manhattan, Morris,
Merrillville, Crete, Minooka, and Channahon
1245 PM CST Sat Dec 6 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST SUNDAY...
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.
* WHERE...In Illinois, Eastern Will, Grundy, and Southern Will
Counties. In Indiana, Lake IN and Porter Counties.
* WHEN...From midnight tonight to 9 AM CST Sunday.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for Illinois can be obtained at
www.gettingaroundillinois.com. The latest road conditions for
Indiana can be obtained at https://511in.org.
&&
$$
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
253 PM CST Sat Dec 6 2025
LMZ743>745-070500-
/O.NEW.KLOT.SC.Y.0109.251207T1700Z-251208T1500Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
253 PM CST Sat Dec 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM SUNDAY TO 9 AM CST
MONDAY...
* WHAT...North to northeast winds to 25 kt and significant waves
to 8 ft occasionally to 10 ft expected.
* WHERE...Calumet Harbor IL to Michigan City IN.
* WHEN...From 11 AM Sunday to 9 AM CST Monday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Northern Indiana
256 PM EST Sat Dec 6 2025
LMZ043-046-070400-
/O.NEW.KIWX.SC.Y.0075.251207T1900Z-251208T0900Z/
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
256 PM EST Sat Dec 6 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 4 AM EST
MONDAY...
* WHAT...Waves 3 to 6 feet expected. Southeast winds 15 to 20
knots with gusts to 25 knots Sunday afternoon, then becoming
north Sunday night.
* WHERE...Michigan City IN to St Joseph MI.
* WHEN...From 2 PM Sunday to 4 AM EST 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.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 PM CST Sat Dec 6 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-072100-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
247 PM CST Sat Dec 6 2025 /347 PM EST Sat Dec 6 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Snow Risk Tonight.
Limited Ice Accumulation Risk South of I-80 Tonight.
DISCUSSION...
Accumulating snow late this evening through Sunday morning will
lead to hazardous travel conditions across the area.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday Morning...
Elevated Snow Risk.
Sunday afternoon through Monday Morning.
Limited Lake Effect Snow Risk.
Tuesday through Friday...
Limited Snow Risk.
Thursday night into Friday Morning...
Limited Excessive Cold Risk.
DISCUSSION...
A series of clipper systems moving across the Great Lakes may
bring regular opportunities for snow and travel impacts to the
local area through the week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
332 PM EST Sat Dec 6 2025
LMZ844>849-070915-
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-
332 PM EST Sat Dec 6 2025
This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.
.DAY ONE...This Evening and Tonight
Winds and waves will create hazardous conditions into this evening.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
Winds and waves are likely to create periods of hazardous
conditions through the next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
332 PM EST Sat Dec 6 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-070915-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
332 PM EST Sat Dec 6 2025
This hazardous weather outlook is for portions of southwest Lower
Michigan.
.DAY ONE...This Evening and Tonight
Light snow will develop after midnight. Roads will likely become
slick overnight and into Sunday morning.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
We are looking at multiple systems over the next week that will
bring snow accumulations to the area. Colder temperatures and
snowfall will make for winter driving conditions much of the next 7
days.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Cleveland OH
316 PM EST Sat Dec 6 2025
OHZ003-006>014-017>023-089-PAZ001>003-072030-
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-
Ashtabula Inland-Hancock-Seneca-Huron-Medina-Summit-Portage-Trumbull-
Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford-
316 PM EST Sat Dec 6 2025
This Hazardous Weather Outlook is for north central Ohio, northeast
Ohio, northwest Ohio and northwest Pennsylvania.
.DAY ONE...This afternoon and tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Precipitation may briefly start as freezing drizzle early Sunday
before changing to light snow. Freezing drizzle could lead to patchy
slick spots on untreated surfaces early Sunday.
Light snow accumulations of 0.5 to 2 inches are likely across
northern Ohio and northwestern Pennsylvania on Sunday. Lake enhanced
snow will linger Sunday evening across Northeast Ohio and Northwest
Pennsylvania, with additional accumulations of 1 inch or less.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Northern Indiana
301 PM EST Sat Dec 6 2025
INZ005>009-012>015-017-018-020-022>027-032>034-103-104-116-203-204-
216-MIZ078>081-177-277-OHZ001-002-004-005-015-016-024-025-072015-
Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski-Marshall-
Fulton IN-Whitley-Allen IN-White-Cass IN-Miami-Wabash-Huntington-
Wells-Adams-Grant-Blackford-Jay-Northern La Porte-
Eastern St. Joseph IN-Northern Kosciusko-Southern La Porte-
Western St. Joseph IN-Southern Kosciusko-Cass MI-St. Joseph MI-
Branch-Hillsdale-Northern Berrien-Southern Berrien-Williams-
Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-Allen OH-
301 PM EST Sat Dec 6 2025 /201 PM CST Sat Dec 6 2025/
This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.
.DAY ONE...This afternoon and tonight.
Snowfall expected tonight into Sunday should accumulate from 1 to 2
inches with a few localized 3 inch totals. Significant impacts are
not expected; however, numerous rural roads in open areas remain
slippery in places from recent snowfall drifts and icy spots.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Snowfall will continue into Sunday before diminishing by Sunday
afternoon. Total accumulations from 1 to 3 inches. Significant
impacts are not expected; however, numerous rural roads in open areas
remain slippery in places from recent snowfall drifts and icy spots.
Cold temperatures near zero and wind chill readings below zero are
expected late Sunday night into Monday morning and Monday night into
Tuesday morning.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
244 PM EST Sat Dec 6 2025
MIZ047>049-053>055-060>063-068>070-075-076-082-083-071945-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
244 PM EST Sat Dec 6 2025
This hazardous weather outlook is for southeast Michigan.
.DAY ONE...This Afternoon and Tonight
Light snow begins developing late tonight with accumulations up to an
inch.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
Light widespread snow continues through Sunday morning before
tapering off Sunday afternoon. Additional snowfall up to an inch
possible. Storm totals will range between a half-inch and two
inches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today and tonight.
$$
Hazardous Weather Outlook
National Weather Service Indianapolis IN
240 PM EST Sat Dec 6 2025
INZ021-028>031-035>049-051>057-060>065-067>072-071945-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
240 PM EST Sat Dec 6 2025
This hazardous weather outlook is for central Indiana.
.DAY ONE...Through Tonight.
Light snow and freezing drizzle is possible late tonight across far
N/NW portions of central Indiana. Little to no accumulation is
expected.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Light snow accumulations are possible Sunday morning over north-
central Indiana.
There are chances for snow on Wednesday Night through Saturday.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report any light snow accumulations Sunday.
&&
More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind
$$
JP
