California, 2021Dense Fog in California, November 12 to 13, 2021
November 12 to 13, 2021 · NWS HNX · 7 events in 7 counties and zones
A strong ridge of high pressure remained dominant over central California during the evening of November 12 and the morning of November 13. Clear skies and light winds once again prevailed across the San Joaquin Valley.
Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 7
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.
A strong ridge of high pressure remained dominant over central California during the evening of November 12 and the morning of November 13. Clear skies and light winds once again prevailed across the San Joaquin Valley. Dense fog formed during the evening north of Fresno and spread southward overnight impacting travel on State Routes 99, 41, 43, 180, and 198. The fog lifted into a low cloud deck by late morning which persisted all day at some locations.
Dense Fog, Merced-Madera-Mendota
- When
- November 12, 8:55 PM PST to November 13, 10:30 AM PST
- Where
- Merced-Madera-Mendota forecast zone
- Reported by
- ASOS
- Coordinates
- 37.056, -120.043 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Atwater, Merced and Madera. Several webcams showed visibility below 1000 feet.
Dense Fog, Visalia - Porterville - Reedley
- When
- November 13, 12:15 AM PST to 12:10 PM PST
- Where
- Visalia - Porterville - Reedley forecast zone
- Reported by
- AWOS
- Coordinates
- 36.489, -119.224 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Visalia. Several webcams showed visibility below 1000 feet.
Dense Fog, Hanford - Corcoran - Lemoore
- When
- November 13, 12:20 AM PST to 11:20 AM PST
- Where
- Hanford - Corcoran - Lemoore forecast zone
- Reported by
- ASOS
- Coordinates
- 36.351, -119.421 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Hanford. Several webcams showed visibility below 1000 feet.
Dense Fog, Caruthers - San Joaquin - Selma
- When
- November 13, 1:00 AM PST to 11:00 AM PST
- Where
- Caruthers - San Joaquin - Selma forecast zone
- Reported by
- Department of Highways
- Coordinates
- 36.489, -119.224 (the zone’s center; the record gives no point)
Several webcams showed visibility below 1000 feet.
Dense Fog, Fresno - Clovis
- When
- November 13, 1:25 AM PST to 7:20 AM PST
- Where
- Fresno - Clovis forecast zone
- Reported by
- ASOS
- Coordinates
- 36.758, -119.649 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Fresno. Several webcams showed visibility below 1000 feet.
Dense Fog, West Side of Fresno and Kings Counties
- When
- November 13, 3:25 AM PST to 11:33 AM PST
- Where
- West Side of Fresno and Kings Counties forecast zone
- Reported by
- ASOS
- Coordinates
- 36.417, -119.732 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Lemoore. Several webcams showed visibility below 1000 feet.
Dense Fog, Delano - Wasco - Shafter
- When
- November 13, 8:15 AM PST to 9:55 AM PST
- Where
- Delano - Wasco - Shafter forecast zone
- Reported by
- AWOS
- Coordinates
- 35.879, -119.115 (the zone’s center; the record gives no point)
Visibility below a quarter mile was reported in Delano.
- 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.
- Flooding and Heavy Rain in Washington, November 12 to 19, 20211 death · 1 injured · $55 million · 8 events
- Flooding and High Wind in Massachusetts, November 12, 2021$82,000 · 56 kt wind · 24 events
- Strong Wind in Vermont, November 12, 2021$80,000 · 5 events
- Tornado and Flood in New York, November 12, 2021$17,000 · EF1 · 3 events
- Marine Thunderstorm Winds in North Atlantic Coastal Waters, November 12, 202112 events
- Marine Thunderstorm Winds in North Atlantic Coastal Waters, November 12, 202161 kt wind · 8 events
- Flood and High Wind in Rhode Island, November 12, 2021$9,000 · 58 kt wind · 7 events
- High Wind in Wyoming, November 12 to 13, 202171 kt wind · 7 events
- Damaging Winds in New York, November 12, 2021$10,000 · 50 kt wind · 6 events
- Dense Fog in California, November 12, 20216 events
- High Wind in Kansas, November 12, 2021$12,000 · 1 event
- Marine High Wind in North Atlantic Coastal Waters, November 12, 202158 kt wind · 4 events
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: 985322, 985328, 985327, 985324, 985325, 985323, 985326.