The National Weather Service in St. Louis, Missouri, has advised of limited visibility across various regions due to a dense fog that has enveloped parts of south central, southwest, and west central Illinois as well as east central, northeast, and southeast Missouri early this morning. With the advisory stating visibility at a quarter mile or less, drivers are urged to exercise caution.
Areas affected include cities such as Salem, Quincy, Edwardsville, and St. Louis, with the advisory highlighting hazardous driving conditions likely to persist until 9 AM CST. According to the NWS, visibility one quarter mile or less in dense fog, provides little room for error on the roads. The moist veil, unwelcome yet inescapable with humidity readings hitting the utmost ceiling at a saturated 100%, offers a challenge to the morning commute.
Travelers are advised to slow down, use headlights, and keep a safe distance between vehicles when driving through fog. After the fog lifts, isolated showers are expected before 9 a.m., followed by scattered showers later in the day with a 50% chance of rain. Showers remain possible into the evening before conditions begin to clear on Wednesday.
Temperatures will stay in the lower 50s, with winds shifting from light southeast breezes to stronger westerly winds. Gusts may reach up to 25 mph Tuesday night and up to 29 mph on Wednesday. Thanksgiving Day is expected to be sunny, but rain and snow are likely over the weekend, with precipitation chances between 50% and 70%.
The National Weather Service will continue to monitor conditions and provide updates to help the public prepare for changing weather.
