Dense Fog, Merced and Madera
- When
- December 13, 12:35 AM PST to 10:15 AM PST
- Where
- Merced and Madera forecast zone
- Reported by
- ASOS
Visibility below a quarter mile was reported in Merced and Atwater.
Dense Fog in California, December 13, 2019
High pressure built back into central California during the evening of December 12. With skies clearing out and diminishing winds, patches of dense fog formed along the west side of the San Joaquin Valley and in Merced County during the morning of December 13.
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.
High pressure built back into central California during the evening of December 12. With skies clearing out and diminishing winds, patches of dense fog formed along the west side of the San Joaquin Valley and in Merced County during the morning of December 13. Several school districts in western Kings and western Fresno Counties either opened late or delayed bus service due to low visibility. The fog dissipated by late morning.
Event by event
3 dense fog. Local standard time, as filed.
Dense Fog, Western San Joaquin Valley
- When
- December 13, 3:39 AM PST to 7:17 AM PST
- Where
- Western San Joaquin Valley forecast zone
- Reported by
- ASOS
Visibility below a quarter mile was reported in Lemoore. Several school districts had delayed openings or delayed bus service due to fog.
Dense Fog, Foggy Bottom
- When
- December 13, 5:00 AM PST to 7:00 AM PST
- Where
- Foggy Bottom forecast zone
- Reported by
- Law Enforcement
California Highway Patrol reported visibility of an eighth of a mile along SR 198 between 16th Ave and SR 41. Several school districts had delayed openings or delayed bus service due to fog.
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
- Winter Weather in West Virginia, December 13, 2019
- Winter Weather in Maryland, December 13, 2019
- Winter Weather in West Virginia, December 13, 2019
- Winter Weather in North Carolina, December 13, 2019
- Winter Weather in Virginia, December 13, 2019
- Winter Weather in West Virginia, December 13 to 14, 2019
- Dense Fog in Maryland, December 13, 2019
- Dense Fog in Missouri, December 13 to 14, 2019
- Dense Fog in Illinois, December 13 to 14, 2019
- Flash Flood in Georgia, December 13, 2019
- Heavy Snow in California, December 13 to 15, 2019
- Dense Fog in Virginia, December 13, 2019
More
Every storm in California in 2019Every state in 2019This day in weather historyWarnings in California, December 2019
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: 860163, 860164, 860165.