Dense Fog in California, February 6, 2001

Name: Dense Fog in California, February 6, 2001
Start: 2001-02-06T00:53
End: 2001-02-06T08:00
Location: California

February 6, 2001 · NWS HNX · 3 events in 3 counties and zones

Dense fog on the morning of the 6th formed during the early morning hours. Visibilities dropped down to 200 feet in the Central and North portion of the Southern San Joaquin Valley.

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 3

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.

Dense fog on the morning of the 6th formed during the early morning hours. Visibilities dropped down to 200 feet in the Central and North portion of the Southern San Joaquin Valley.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before the first event at Feb 5, 9:00 PM PST, 3 hours 53 minutes earlier.

Area forecast discussion, Feb 5, 9:00 PM PST, 3 hours 53 minutes before

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Event by event

3 dense fog. Local standard time, as filed.

Dense Fog, Sw Sj Valley

When: February 6, 12:53 AM PST to 8:00 AM PST
Where: Sw Sj Valley forecast zone
Reported by: AWOS,ASOS,MESONET,ETC

Dense Fog, Se Sj Valley

When: February 6, 2:55 AM PST to 8:00 AM PST
Where: Se Sj Valley forecast zone
Reported by: AWOS,ASOS,MESONET,ETC

Dense Fog, E Central Sj Valley

When: February 6, 5:28 AM PST to 8:00 AM PST
Where: E Central Sj Valley forecast zone
Reported by: LAW ENFORCEMENT

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

Every storm in California in 2001 Every state in 2001 This day in weather history Warnings in California, February 2001

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: 5233036, 5233037, 5233035.