California, 2021

Dense Fog in California, January 12, 2021

January 12, 2021 · NWS HNX · 1 event in 1 county or zone

A low pressure system moving through the Pacific Northwest provided enough mixing to keep dense fog confined to a portion of eastern Kings, western Tulare and central Fresno Counties during the morning of January 12 for a few hours. The fog dissipated by late morning.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS HNX wrote it up.

A low pressure system moving through the Pacific Northwest provided enough mixing to keep dense fog confined to a portion of eastern Kings, western Tulare and central Fresno Counties during the morning of January 12 for a few hours. The fog dissipated by late morning.

Event by event

1 dense fog. Local standard time, as filed.

Dense Fog, Foggy Bottom

When
January 12, 6:25 AM PST to 8:25 AM PST
Where
Foggy Bottom forecast zone
Reported by
ASOS

Hanford reported visibility below a quarter mile. California Highway Patrol reported visibility below 500 feet at the intersection of 15th Ave. and Grangeville Blvd at 0706 PST.

What these are

Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2021Every state in 2021This day in weather historyWarnings in California, January 2021

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 928495.