C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 192244
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
544 PM CDT Sat Jul 19 2025
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-
544 PM CDT Sat Jul 19 2025 /644 PM EDT Sat Jul 19 2025/
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...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Elevated Flooding Risk.
DISCUSSION...
Scattered thunderstorms and locally heavy rain are possible late
tonight, mainly south of I-80. A few storms could be strong to
severe.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday...
Elevated Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
High Swim Risk Lake Michigan Beaches.
Monday...
Limited Thunderstorm Risk.
Wednesday...
Elevated Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
DISCUSSION...
Thunderstorms with torrential rain and localized flash flooding
may persist south of I-80 on Sunday.
Building waves on Lake Michigan late tonight through Sunday will
result in dangerous swimming conditions at northeast IL beaches.
Dangerous heat and humidity are possible the middle of next week.
.SPOTTER INFORMATION STATEMENT...
Spotters activation is not expected at this time.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 40 mph.
https://wxn.io/c8dws
