Alert archive / California / Red Flag Warnings / 2020
Red Flag Warnings in California, August 2020
27 red flag warnings in August 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in August 2020. Tap one for its archive.
- Red Flag Warnings
- 27
- Busiest day
- August 16, 20205 red flag warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Aug 4, 2:42 PM PDT | Red Flag Warning | MFR | Siskiyou | 32 hr |
| Aug 11, 10:40 AM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 34 hr |
| Aug 11, 2:30 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 12, 2:30 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 15, 10:27 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 49 hr |
| Aug 15, 11:20 AM PDT | Red Flag Warning | STO | 58 hr | |
| Aug 15, 11:22 AM PDT | Red Flag Warning | EKA | 31 hr | |
| Aug 15, 11:49 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 33 hr |
| Aug 15, 10:49 PM PDT | Red Flag Warning | LOX | Santa Barbara | 11 hr |
| Aug 16, 3:42 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 25 hr |
| Aug 16, 4:20 AM PDT | Red Flag Warning | EKA | 8 hr | |
| Aug 16, 12:06 PM PDT | Red Flag Warning | EKA | 16 hr | |
| Aug 16, 12:57 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 55 hr |
| Aug 17, 3:47 AM PDT | Red Flag Warning | EKA | 15 hr | |
| Aug 18, 2:16 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Aug 18, 2:23 PM PDT | Red Flag Warning | REV | Lassen, Modoc, Plumas, Sierra | 31 hr |
| Aug 19, 3:20 AM PDT | Red Flag Warning | STO | 30 hr | |
| Aug 19, 9:28 AM PDT | Red Flag Warning | EKA | 24 hr | |
| Aug 22, 1:35 AM PDT | Red Flag Warning | MFR | Modoc | 42 hr |
| Aug 22, 11:48 AM PDT | Red Flag Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 46 hr |
| Aug 22, 1:31 PM PDT | Red Flag Warning | STO | 57 hr | |
| Aug 22, 1:48 PM PDT | Red Flag Warning | EKA | 57 hr | |
| Aug 22, 6:25 PM PDT | Red Flag Warning | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 41 hr |
| Aug 23, 2:41 AM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 44 hr |
| Aug 23, 9:23 PM PDT | Red Flag Warning | REV | Lassen, Modoc | 33 hr |
| Aug 25, 6:10 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 14 hr |
| Aug 30, 3:00 AM PDT | Red Flag Warning | EKA | 32 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Modoc County13
- Lassen County6
- Plumas County5
- Sierra County5
- Siskiyou County4
- El Dorado County3
- Nevada County3
- Placer County3
- Alameda County2
- Contra Costa County2
- Marin County2
- Monterey County2
- Napa County2
- San Benito County2
- City and County of San Francisco2
- San Mateo County2
- Santa Clara County2
- Santa Cruz County2
- Sonoma County2
- Madera County2
- Mono County2
- Santa Barbara County1
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.