Alert archive / California / Red Flag Warnings / 2021
Red Flag Warnings in California, July 2021
25 red flag warnings in July 2021. 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 July 2021. Tap one for its archive.
- Red Flag Warnings
- 25
- Busiest day
- July 17, 20216 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 |
|---|---|---|---|---|
| Jul 3, 1:41 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 29 hr |
| Jul 4, 1:35 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Jul 5, 2:46 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 29 hr |
| Jul 7, 4:14 AM PDT | Red Flag Warning | MFR | Modoc | 16 hr |
| Jul 7, 2:16 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
| Jul 10, 2:29 AM PDT | Red Flag Warning | MFR | Modoc | 20 hr |
| Jul 11, 8:51 PM PDT | Red Flag Warning | MFR | Modoc | 3 days |
| Jul 15, 2:22 AM PDT | Red Flag Warning | MFR | Modoc | 18 hr |
| Jul 15, 2:30 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Jul 16, 1:14 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Jul 17, 11:01 AM PDT | Red Flag Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 2 more | 40 hr |
| Jul 17, 11:54 AM PDT | Red Flag Warning | REV | El Dorado, Lassen, Madera, Modoc, Mono, Nevada and 3 more | 39 hr |
| Jul 17, 12:06 PM PDT | Red Flag Warning | VEF | Inyo, Tulare | 39 hr |
| Jul 17, 1:13 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 31 hr |
| Jul 17, 1:47 PM PDT | Red Flag Warning | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 37 hr |
| Jul 17, 2:56 PM PDT | Red Flag Warning | LOX | Santa Barbara | 37 hr |
| Jul 18, 2:30 AM PDT | Red Flag Warning | STO | 24 hr | |
| Jul 18, 12:57 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Jul 19, 1:15 PM PDT | Red Flag Warning | MFR | Modoc | 31 hr |
| Jul 20, 3:04 PM PDT | Red Flag Warning | MFR | Modoc | 29 hr |
| Jul 21, 1:32 PM PDT | Red Flag Warning | MFR | Modoc | 30 hr |
| Jul 28, 5:00 AM PDT | Red Flag Warning | MFR | Siskiyou | 42 hr |
| Jul 29, 12:06 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 31 hr |
| Jul 30, 4:13 AM PDT | Red Flag Warning | EKA | 16 hr | |
| Jul 30, 12:48 PM PDT | Red Flag Warning | MFR | Siskiyou | 33 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Modoc County17
- Siskiyou County7
- El Dorado County2
- Lassen County2
- Nevada County2
- Placer County2
- Plumas County2
- Sierra County2
- Madera County2
- Tulare County2
- Fresno County1
- Kern County1
- Kings County1
- Mariposa County1
- Merced County1
- Tuolumne County1
- Mono County1
- Inyo County1
- Monterey County1
- San Benito County1
- San Mateo County1
- Santa Clara County1
- Santa Cruz County1
- Santa Barbara County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.