Expires:202507091300;Remove:202507091300;131199 WWUS83 KLOT 090725 SPSLOT Special Weather Statement National Weather Service Chicago/Romeoville IL 225 AM CDT Wed Jul 9 2025 ILZ003>005-008-010-011-019-032-091300- 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. $$ Borchardt