Snow Advisories in California
341 snow advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of snow advisories reaches back to 2005.
Snow Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Snow Advisories
- 341
- Busiest year
- 2006147 snow advisories
- Average year
- 85over 4 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Siskiyou County71
- Modoc County43
- Plumas County31
- Sierra County31
- Lassen County31
- Alpine County27
- El Dorado County27
- Nevada County27
- Placer County27
- Mono County22
- San Bernardino County12
- Inyo County10
- Riverside County9
- San Diego County9
- Monterey County7
- San Benito County7
- San Mateo County7
- Santa Clara County7
- Santa Cruz County7
- Santa Barbara County2
- Marin County1
- Napa County1
- Sonoma County1
- Orange County1
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.