Dense Fog — Merced and Madera, California

2020-12-24 to 2020-12-25 · Merced and Madera, California

Event narrative

Merced and Madera reported visibility below a quarter mile.

Wider weather episode

Clear skies and light winds allowed for dense fog to reform in Merced and Madera Counties along the State Route 99 corridor on Christmas eve. However, an incoming system provided for enough mixing to dissipate the fog layer early Christmas morning. Visibilities were generally between 3 and 5 miles in most of the San Joaquin Valley on Christmas morning.

Source: NOAA Storm Events Database, event_id 925724. Narrative written by the NWS forecast office that issued the report.