418
FLUS43 KLOT 180756
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
256 AM CDT Sat Oct 18 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-190800-
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-
256 AM CDT Sat Oct 18 2025 /356 AM EDT Sat Oct 18 2025/

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...with an associated:
     Level 1 of 5 Damaging Wind Risk...up to 60 mph.

DISCUSSION...

Periods of showers and storms are expected across the region
today. The highest coverage of storms should be northwest of
Interstate 55 this morning, and then southeast of Interstate 55
this afternoon. Additional thunderstorms are possible areawide
after sunset. A storm or two may become strong with locally gusty
to damaging wind gusts.

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

  No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation is not anticipated at this time.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the northeast at 35 mph.

$$

LMZ740>745-190800-
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-
256 AM CDT Sat Oct 18 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...Today and Tonight.

Weather hazards expected...

  Limited Thunderstorm Risk.

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

Sunday...
  Gale force winds and very hazardous waves are expected.
Monday through Wednesday...
  Hazardous conditions for small craft are likely.
  A period of gale force winds and hazardous waves are possible.

$$

Borchardt

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