450
FLUS43 KLOT 062047
HWOLOT

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.

$$

LMZ740>745-072100-
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 CST Sat Dec 6 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.

  No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday through Tuesday...
  Hazardous conditions for small craft are likely.
Tuesday Night and Wednesday...
  Gale force winds and very hazardous waves.
Thursday and Friday...
  Hazardous conditions for small craft are likely.

$$

KJB

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