Dense Fog, Sw S.J. Valley
- When
- February 1, 2:40 AM PST to 9:30 AM PST
- Where
- Sw S.J. Valley forecast zone
- Reported by
- ASOS
Visibility below 200 feet was reported in the Hanford area at 328 am PST and remained under a quarter mile through 930 am PST.
Dense Fog in California, February 1, 2018
The large area of high pressure which prevailed over the area toward the end of January continued to hold it's grip on Central California as February began. Area of dense fog formed in the southwestern portion of the San Joaquin Valley on the morning of February 1 and patches of dense fog persisted until 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.
The large area of high pressure which prevailed over the area toward the end of January continued to hold it's grip on Central California as February began. Area of dense fog formed in the southwestern portion of the San Joaquin Valley on the morning of February 1 and patches of dense fog persisted until late morning.
Event by event
1 dense fog. Local standard time, as filed.
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
- Drought in Oklahoma, February 1 to 28, 2018
- Drought in New Mexico, February 1 to 28, 2018
- Flash Flood and Heavy Rain in Hawaii, February 1 to 6, 2018
- Drought in Florida, February 1 to 13, 2018
- Drought in Oklahoma, February 1 to 28, 2018
- Drought in Texas, February 1 to 21, 2018
- Drought in Alabama, February 1 to 13, 2018
- Drought in Louisiana, February 1 to 14, 2018
- Drought in Kansas, February 1 to 28, 2018
- Drought in Georgia, February 1 to 6, 2018
- Drought in Montana, February 1 to 28, 2018
- Heavy Snow and Winter Weather in West Virginia, February 1 to 2, 2018
More
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, February 2018
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 2026-10-01. Each event’s entry at NCEI: 729418.