Wednesday, July 9, 2025

Special Weather Statement for McHenry Co., IL

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

WWUS83 KLOT 090725
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville IL
225 AM CDT Wed Jul 9 2025


Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-La Salle-Livingston-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Rochelle, Oregon, Byron, Dixon,
DeKalb, Sycamore, Ottawa, Streator, La Salle, Mendota,
Marseilles, Pontiac, Dwight, and Fairbury
225 AM CDT Wed Jul 9 2025

...Patchy Dense Fog This Morning...

Patchy dense fog will continue to develop across portions of
northwest Illinois through the early morning hours. The fog will
be locally dense with visibility reduced down to a quarter mile in
some locations such as river valleys and other low lying
locations. Visibility will improve by 8 AM as the sun angle grows
stronger.

If traveling this morning, be prepared for rapid changes in
visibilities over very short distances, make sure to slow down,
and keep plenty of stopping distance between yourself and other
vehicles.

If visibilities down to one quarter mile become widespread across
a portion of the Special Weather Statement area, a Dense Fog
Advisory may be issued.


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