329
FLUS43 KLOT 200920
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
420 AM CDT Sun Apr 20 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-210930-
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-
420 AM CDT Sun Apr 20 2025 /520 AM EDT Sun Apr 20 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 tonight...with an associated:
     Level 1 of 5 Damaging Wind Risk...up to 60 mph.

DISCUSSION...

A cold front will bring widespread showers and embedded
thunderstorms late this evening through tonight. While widespread
severe weather is not expected, stronger storms will have the
potential to generate locally gusty winds especially south of
I-80.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
  Limited Non Thunderstorm Wind Risk.
Tuesday night...
  Limited Thunderstorm Risk.
Friday...
  Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east-northeast at 45 to 50 mph.

$$

LMZ740>745-210930-
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-
420 AM CDT Sun Apr 20 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 tonight.
  Limited Thunderstorm Risk tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
  Gale force winds and very hazardous waves.
Tuesday night...
  Limited Thunderstorm Risk.
Friday and Saturday...
  Hazardous conditions for small craft are likely.

$$

Yack

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