Dense Fog in Tulare County, California

Dense Fog December 18, 2020 · Tulare County, California

What the National Weather Service wrote

Visalia and Porterville reported visibility below a quarter mile.

The wider storm

High pressure built into California on the morning of December 18 which resulted in clearing skies and decreased winds across the area. With some residual low level moisture from the storm that moved through the area on the previous day, areas of dense fog formed overnight across portions of the eastern San Joaquin Valley as well as along the State Route 99 corridor from Madera to Visalia. The fog lifted into a low cloud deck by late morning.

Source: NOAA Storm Events Database, event 925616. Narratives are written by the National Weather Service forecast office that issued the report.

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