Dense Fog — E Central S.j. Valley, California
2018-12-18 · E Central S.j. Valley, California
Event narrative
Visibility below a quarter mile was reported in Fresno, Madera, Merced and Atwater.
Wider weather episode
High pressure built inland into Central California during the morning of December 18. With light winds and clearing skies, dense fog developed toward daybreak along the State Route 99 corridor between Atwater and Fresno and briefly around Hanford. The fog dissipated by late morning.
Source: NOAA Storm Events Database, event_id 789827. Narrative written by the NWS forecast office that issued the report.