Dense Fog — Wayne, Illinois

2025-05-06 · Wayne, Illinois

Wider weather episode

Surface high pressure was draped across the southern Illinois from the evening of the 5th through the morning of the 6th. As a result, skies were clear and winds were calm, which allowed dense fog to develop generally along and east of the Interstate 57 corridor overnight through sunrise. The fog first developed near Mount Vernon in the late evening of the 5th, and gradually spread southward through the pre-dawn hours on the 6th.

Source: NOAA Storm Events Database, event_id 1260706. Narrative written by the NWS forecast office that issued the report.