Dense Fog — Merced and Madera, California

2020-11-14 to 2020-11-15 · Merced and Madera, California

Event narrative

Merced and Atwater reported visibility below a quarter mile.

Wider weather episode

High pressure strengthened over central California on November 14. This allowed for a stronger near surface inversion during the morning of November 15 in the San Joaquin Valley. With clear skies and light winds prevailing, areas of dense fog formed overnight near the center of the San Joaquin Valley reducing visibility to between 500 and 1000 feet in several locations and impacting travel on State Route 99. The fog lifted into a stratus deck by late morning and dissipated by midday.

Source: NOAA Storm Events Database, event_id 920708. Narrative written by the NWS forecast office that issued the report.