498
FLUS43 KLOT 311017
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
417 AM CST Fri Jan 31 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-011030-
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-
417 AM CST Fri Jan 31 2025 /517 AM EST Fri Jan 31 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...

  Elevated Flooding Risk.
  Elevated Morning Fog Risk.
  Limited Thunderstorm Risk.

DISCUSSION...

Rain, heavy at times, is expected this morning into this
afternoon, with localized totals up around an inch and a half
expected. With a still frozen ground, enhanced runoff from this
rain may create areas of flooding, particularly in low-lying and
flood-prone areas, as well as the potential for isolated ice jam
flooding on area rivers.

Locally dense fog will improve this morning.

A slight chance of a thunderstorm also exists this morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Tuesday night into Wednesday morning...
  Limited Ice Accumulation Risk.

Wednesday night...
  Limited Thunderstorm Risk.

DISCUSSION...

The risk for isolated break-up ice jam flooding could continue
over the weekend.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.


$$

LMZ740>745-011030-
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-
417 AM CST Fri Jan 31 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...

  Hazardous conditions for small craft.
  Limited Thunderstorm Risk.
  Elevated Fog Risk.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
  Hazardous conditions for small craft are likely.

$$

KJB

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