Friday, April 18, 2025

Hazardous Weather Outlook for McHenry Co., IL

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

FLUS43 KLOT 181729
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1229 PM CDT Fri Apr 18 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-
1229 PM CDT Fri Apr 18 2025 /129 PM EDT Fri Apr 18 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 2 of 5 Large Hail Risk...up to 2 inches in diameter.
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Tornado Risk.
Limited Non-Thunderstorm Wind Risk.

DISCUSSION...

Southwest winds will gust to 35 to 40 mph through early this
evening.

Scattered thunderstorms are expected to develop this evening,
primarily along and southeast of a line from near LaSalle Peru to
Chicago. Some of the storms could be severe with large hail,
possibly up to 2 inches in diameter, the greatest threat. There is
also the potential for locally damaging winds and perhaps a
tornado, especially if thunderstorms become more widespread and
are able to organize into a line.


.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Limited Thunderstorm Risk.
Tuesday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed between 5 pm and midnight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northeast at 45 mph.


https://wxn.io/i49v8