Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
430 AM CDT Sun Aug 9 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-100930-
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-
430 AM CDT Sun Aug 9 2026 /530 AM EDT Sun Aug 9 2026/

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 Thunderstorm Risk...with an associated:
     Level 1 of 5 Tornado Risk.
     Level 2 of 5 Damaging Wind Risk...up to 70 mph.
     Level 1 of 5 Large Hail Risk...up to quarter size.
  Elevated Flooding Risk.

DISCUSSION...

Showers and thunderstorms are expected to develop into the region
late this morning into this afternoon. A few storms may produce
locally damaging winds and hail to the size of quarters.

Additional thunderstorms may develop this evening, with the
potential to produce additional localized severe weather as well
as locally heavy rainfall which could lead to instances of flash
flooding.

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

Monday and Tuesday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk...with an associated:
     Level 2 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Friday and Saturday...
  Limited Thunderstorm Risk.

DISCUSSION...

Additional rounds of showers and thunderstorms are likely across
the region Monday through at least Wednesday, with a continued
threat of flash flooding and severe weather at times, especially
Monday into Tuesday.

.SPOTTER INFORMATION STATEMENT...

  Spotters may be needed this afternoon and this evening.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east-southeast at around 35 mph.

$$

Hazard Report Provided By forecast.weather.gov