Saturday, July 19, 2025

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 191636
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
Issued by National Weather Service Lincoln IL
1136 AM 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-
1136 AM CDT Sat Jul 19 2025 /1236 PM EDT Sat Jul 19 2025/

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

.DAY ONE...This Afternoon 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 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Elevated Flooding Risk.

DISCUSSION...

Thunderstorms with the potential to produce damaging winds and
torrential rainfall are expected across the area through
early-afternoon. Additional scattered thunderstorms and
locally heavy rain are possible late tonight, mainly south of
I-80.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Elevated Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
High Swim Risk Lake Michigan Beaches.
Monday...
Limited Thunderstorm Risk.
Tuesday...
Limited Excessive Heat Risk.
Wednesday...
Elevated Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.

DISCUSSION...

Thunderstorms with torrential rain and localized flash flooding
may persist south of I-80 on Sunday.

Dangerous heat and humidity are possible the middle of next week.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed through mid-afternoon.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-southeast at 40 mp...

https://wxn.io/xly5i