Dense Fog — Merced-madera-mendota, California

2024-12-20 to 2024-12-21 · Merced-madera-mendota, California

Event narrative

Visibility of one eighth of a mile was reported in Merced and Madera. Webcams indicated visibility below 1000 feet in Merced, Chowchilla and Madera.

Wider weather episode

Mainly clear skies prevailed across the area during the evening of December 20 as skies cleared out during the afternoon following a morning with widespread dense fog. Areas of dense fog formed in the valley by late evening and continued into the morning of December 21 in some locations. The fog completely dissipated by late morning as an approaching low pressure system provided for mixing to take place.

Source: NOAA Storm Events Database, event_id 1221313. Narrative written by the NWS forecast office that issued the report.