NWS Reno NVFW.W 0012September 11, 2026
Red Flag Warning: Surprise Valley California, Eastern Lassen County and Northern Washoe County, CA and NV
The National Weather Service office in Reno issued a red flag warning for Surprise Valley California, Eastern Lassen County and Northern Washoe County in California, Nevada, which was in force until 2:00 a.m. local time on September 13. It was the 12th red flag warning the NWS office in Reno issued in 2026. California had 6 red flag warnings in September 2026, against 14 in an average September of 2008-2025 (California's red flag warnings by year).
ExpiredWarning
In force for 15 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Reno NV
- Area
- Surprise Valley California, Eastern Lassen County and Northern Washoe County
- State
- California
- Level
- Warning
- Issued
- 10:18 a.m. PDT, September 11, 2026
- In force from
- 11:00 a.m. PDT, September 12, 2026
- Expires
- 2:00 a.m. PDT, September 13, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KREV FW.W 0012
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Saturday to 2 AM PDT Sunday. The Fire Weather Watch is no longer in effect. * CHANGES...The Fire Weather Watch has been upgraded to a Red Flag Warning. Expiration time extended to 2 AM Sunday. * Affected Area...Fire Weather Zone 270 Surprise Valley California, Fire Weather Zone 278 Eastern Lassen County, Fire Weather Zone 458 Northern Washoe County. * Winds...Southwest 20 to 30 mph with gusts up to 45 mph. * Humidity...As low as 15 percent. * Duration...3 to 6 hours. * Impacts...The combination of strong winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them.
What the agency told people to do
Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.