Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
400 AM CDT Mon Aug 10 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-110900-
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-
400 AM CDT Mon Aug 10 2026 /500 AM EDT Mon Aug 10 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 65 mph.
     Level 1 of 5 Large Hail Risk...up to quarter size.
  Elevated Flooding Risk.

DISCUSSION...

Scattered thunderstorms are expected to develop again this
afternoon and tonight. Some of these storms could be strong to
severe, with damaging winds being the greatest severe weather
threat. Any thunderstorms will also be capable of producing
torrential downpours and potentially flooding, especially if they
track across areas which saw heavy rains Sunday and Sunday night.


.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
  Elevated Flooding Risk.
  Elevated Thunderstorm Risk...with an associated:
     Level 2 of 5 Severe Thunderstorm Risk.
Wednesday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk...with an associated:
     Level 1 of 5 Severe Thunderstorm Risk.
Thursday...
  Elevated Flooding Risk.
  Limited Thunderstorm Risk.
Friday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Saturday and Sunday...
  Limited Thunderstorm Risk.

DISCUSSION...

Additional rounds of thunderstorms remain possible through at
least mid-week, with a continued threat of flash flooding and
severe weather at times, especially Tuesday and Tuesday night.

.SPOTTER INFORMATION STATEMENT...

  Spotters may be needed later this afternoon or evening.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east-southeast at 25 to 30 mph.

$$

Hazard Report Provided By forecast.weather.gov