Dense Fog — Alexander, Illinois

2026-01-21 to 2026-01-22 · Alexander, Illinois

Wider weather episode

Clear skies and calm winds following a cold frontal passage allowed for locally dense fog to form over the Ohio/Mississippi confluence region of far Southern Illinois late evening on the 21st through the early AM hours of the 22nd. Northerly winds increasing to 4-7mph before dawn brought an end to fog conditions.

Source: NOAA Storm Events Database, event_id 1311293. Narrative written by the NWS forecast office that issued the report.