Special Weather Statement
Issued by NWS Chicago, IL

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WWUS83 KLOT 211147
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville IL
647 AM CDT Thu Aug 21 2025

ILZ003>005-008-010-011-211400-
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Rochelle, Oregon, Byron, Dixon,
DeKalb, and Sycamore
647 AM CDT Thu Aug 21 2025

...LOCALLY DENSE FOG THIS MORNING...

Areas of fog are developing across portions of northwest Illinois
this morning some of which is locally dense with visibilities of a
quarter mile or less. Commuters should be prepared for sharp
changes in visibility, allow for extra travel time, and use low
beams.

Fog is expected to erode after 9 AM CDT this morning.

$$

Yack