Winter Storm, S Sierra Mtns
- When
- January 12, 4:00 PM PST to January 13, 4:00 PM PST
- Where
- S Sierra Mtns forecast zone
- Reported by
- Trained Spotter
Winter Storm and Dense Fog in California, January 12 to 15, 2010
An upper-level trough moved through the northern half of California on the 12th-13th bringing some light precipitation to much of the forecast area. After a three-day break, the most significant weather that has occurred in quite some time struck the central California interior.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
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.
An upper-level trough moved through the northern half of California on the 12th-13th bringing some light precipitation to much of the forecast area. After a three-day break, the most significant weather that has occurred in quite some time struck the central California interior. Heavy snowfall occurred in the Southern Sierra Nevada with Tenaya Lake reporting 13.0 inches, Kaiser Point reporting 16.0 inches, and Camp Nelson coming in with 6.0 inches.
Heavy Tule Dense fog occurred in the San Joaquin Valley on the morning of the 15th.
Event by event
4 dense fog, 1 winter storm. Local standard time, as filed.
Dense Fog, W Central S.J. Valley
- When
- January 15, 3:00 AM PST to 12:00 PM PST
- Where
- W Central S.J. Valley forecast zone
- Reported by
- Mesonet
Dense Fog, E Central S.J. Valley
- When
- January 15, 3:00 AM PST to 12:00 PM PST
- Where
- E Central S.J. Valley forecast zone
- Reported by
- Mesonet
Dense Fog, Sw S.J. Valley
- When
- January 15, 3:00 AM PST to 12:00 PM PST
- Where
- Sw S.J. Valley forecast zone
- Reported by
- Mesonet
Dense Fog, Se S.J. Valley
- When
- January 15, 3:00 AM PST to 12:00 PM PST
- Where
- Se S.J. Valley forecast zone
- Reported by
- Mesonet
What these are
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
- 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 2010Every state in 2010This day in weather historyWarnings in California, January 2010
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: 213850, 269989, 269990, 269991, 269992.