FLUS43 KLOT 082002
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
302 PM CDT Wed Jul 8 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-092015-
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-
302 PM CDT Wed Jul 8 2026 /402 PM EDT Wed Jul 8 2026/

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

.DAY ONE...Tonight.

Weather hazards expected...

  Limited Thunderstorm Risk late tonight.

DISCUSSION...

A weakening line of thunderstorms may drift into portions of 
northwest Illinois and areas near the Wisconsin state line 
after midnight tonight.

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

Thursday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk...with an associated:
     Level 1 of 5 Severe Thunderstorm Risk.
Friday and Saturday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.

DISCUSSION...

Scattered thunderstorms are expected at times Thursday through 
early Friday morning. Any storms that develop will be capable of 
heavy rainfall which may lead to flooding. The strongest storms 
will be capable of locally damaging wind gusts, mainly south of a 
Pontiac to Rensselaer line. Thunderstorm coverage will decrease 
and focus mainly south of I-80 Friday and Saturday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the southeast at around 25 mph.

$$

LMZ740>745-092015-
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-
302 PM CDT Wed Jul 8 2026

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.

Weather hazards expected...

  Limited Thunderstorm Risk toward morning north of Chicago.

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

Thursday...
  Limited Thunderstorm Risk.

$$

Ratzer

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