C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 232027
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
327 PM CDT Wed Jul 23 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-
327 PM CDT Wed Jul 23 2025 /427 PM EDT Wed Jul 23 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Significant Excessive Heat Risk through early evening.
Limited Thunderstorm Risk.
DISCUSSION...
A few isolated thunderstorms are expected this afternoon.
Heat index values will remain as high as 110 degrees
through the early part of this evening.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
Elevated Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Elevated Flooding Risk.
Limited Thunderstorm Risk.
Saturday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Sunday through Tuesday...
Limited Excessive Heat Risk.
DISCUSSION...
Peak afternoon heat index values of 100 to 110 degrees are
expected again Thursday afternoon.
The chance of thunderstorms will increase late Thursday afternoon
near the Wisconsin border, with thunderstorm chances gradually
spreading south across the remainder of northern Illinois
Thursday evening. Any thunderstorms that do occur will be capable
of producing torrential rainfall and localized flash flooding
with a slight chance of locally damaging winds.
Periodic thunderstorms Friday through Saturday will bring the
chance for torrential rainfall and localized flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonig...
https://wxn.io/rogg5
