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Severe · Red Flag WarningActive alert

Red Flag Warning issued September 12 at 2:08AM PDT until September 13

Affecting Surprise Valley California; Eastern Lassen County; Northern Washoe County

In effect until: Sep 13, 2026, 9:00 AM

Surprise Valley California; Eastern Lassen County; Northern Washoe County

Likely impact; effects through 9:00 AM.

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.

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Read the original bulletin (official text)
* CHANGES...None.

* 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 of 40 to 50 mph.

* Humidity...RH reductions to 15 to 20 percent in the afternoon.
Nighttime recoveries of 50 to 80 percent Sunday morning.

* Duration...4 to 8 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.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™