Alert archive / California / Dense Smoke Advisories
Dense Smoke Advisories in California, 2020
12 dense smoke advisories in 2020. 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 dense smoke advisories reaches back to 2005.
Dense Smoke Advisories by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Dense Smoke Advisories
- 12
- Busiest month
- September6 dense smoke advisories
- Busiest day
- September 14, 20202 dense smoke advisories
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 8:32 AM PDT | Dense Smoke Advisory | REV | Lassen, Plumas, Sierra | 3 days |
| Aug 15, 2:14 AM PDT | Dense Smoke Advisory | REV | Lassen, Plumas, Sierra | 6 hr |
| Aug 16, 10:47 AM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 53 hr |
| Aug 19, 10:28 AM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 4 days |
| Aug 27, 9:52 PM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 63 hr |
| Sep 6, 1:05 AM PDT | Dense Smoke Advisory | REV | Mono | 27 hr |
| Sep 10, 2:06 AM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 3 days |
| Sep 11, 2:40 PM PDT | Dense Smoke Advisory | MFR | Siskiyou | 41 hr |
| Sep 13, 11:34 AM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 23 hr |
| Sep 13, 6:55 PM PDT | Dense Smoke Advisory | MFR | Siskiyou | 41 hr |
| Sep 14, 2:18 PM PDT | Dense Smoke Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 4 days |
| Oct 19, 3:14 AM PDT | Dense Smoke Advisory | REV | Mono | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.