California, 2000

Dense Fog in California, March 1, 2000

March 1, 2000 · NWS HNX · 4 events in 4 counties and zones

Dense fog formed late the night of February 29th and early on the morning of March 1st in the San Joaquin Valley following substantial rainfall during the last half of February. Patchy dense fog dropped visibilities to less than 1/4 mile locally around Visalia and Porterville just before midnight.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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 formed late the night of February 29th and early on the morning of March 1st in the San Joaquin Valley following substantial rainfall during the last half of February. Patchy dense fog dropped visibilities to less than 1/4 mile locally around Visalia and Porterville just before midnight. Subsequently visiblities at Fresno and Lemoore lowered around midnight . More widespread fog was noted in Merced, Madera, and Fresno after 2 AM PST.

Event by event

4 dense fog. Local standard time, as filed.

Dense Fog, Se Sj Valley

When
March 1, 12:00 AM PST to 10:00 AM PST
Where
Se Sj Valley forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Dense Fog, E Central Sj Valley

When
March 1, 12:00 AM PST to 10:00 AM PST
Where
E Central Sj Valley forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Dense Fog, W Central Sj Valley

When
March 1, 12:30 AM PST to 10:00 AM PST
Where
W Central Sj Valley forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Dense Fog, Sw Sj Valley

When
March 1, 2:56 AM PST to 10:00 AM PST
Where
Sw Sj Valley forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

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 2000Every state in 2000This day in weather historyWarnings in California, March 2000

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 2026-09-24. Each event’s entry at NCEI: 5140586, 5140587, 5140588, 5140589.