Dense Fog in Merced and Madera, California

Dense Fog December 15, 2020 · Merced and Madera, California

What the National Weather Service wrote

Merced and Atwater reported visibility below a quarter mile. California Highway Patrol reported visibility between 500 to 1000 feet on Sante Fe Ave between Le Grand and the Madera County border.

The wider storm

High pressure strengthened over central California between the afternoon of December 14 and the early morning of December 15. This resulted in inversion conditions over the central San Jaoquin Valley during the morning of December 15 and with clear skies and light winds previaling, an area of dense fog formed along the State Route 99 corridor between Turlock and Tulare. The fog was most prevalent in Merced County where it persisted until late morning.

Source: NOAA Storm Events Database, event 924599. Narratives are written by the National Weather Service forecast office that issued the report.

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