570
FLUS43 KLOT 120856
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
356 AM CDT Wed Mar 12 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-130900-
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-
356 AM CDT Wed Mar 12 2025 /456 AM EDT Wed Mar 12 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

  No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Friday afternoon...
  Elevated Non Thunderstorm Wind Risk.
Friday night...
  Significant Thunderstorm Risk...with an associated:
     Level 3 of 5 Severe Thunderstorm Risk.
  Elevated Non Thunderstorm Wind Risk.
Saturday...
  Significant Non Thunderstorm Wind Risk.

DISCUSSION...

A very powerful storm system will affect the area Friday afternoon
through Saturday.

Strong southerly winds are likely Friday afternoon and evening
with gusts over 40 mph expected.

Then, a fast moving line of showers and thunderstorms is expected
to sweep across much of the outlook area Friday night. Some of
the thunderstorms could become severe posing a threat for damaging
winds.

Finally, late Friday night through midday Saturday, a period of
very strong and potentially damaging southwest winds are expected.
Several hours with occasional wind gusts over 50 mph are possible.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

LMZ740>745-130900-
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-
356 AM CDT Wed Mar 12 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.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Friday...
  Hazardous conditions for small craft are likely.
  Limited Thunderstorm Risk...with an associated:
     Level 2 of 5 Severe Thunderstorm Risk.
Saturday...
  Gale force winds are likely.
Sunday...
  Hazardous conditions for small craft are likely.

$$

- Izzi

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