Severe · Red Flag WarningActive alert

Red Flag Warning issued September 1 at 12:43AM PDT until September 1

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

In effect until: Sep 2, 2026, 6:00 AM

Surprise Valley California; Eastern Lassen County; Northern Washoe County

Likely impact; effects through 6:00 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)

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT TUESDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR PORTIONS OF NE CALIFORNIA AND NW
NEVADA...

* 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, including the S-1
Vya Fire.

* Winds...Southwest 15 to 25 mph with gusts of 30 to 40 mph.
Ridgetop gusts up to 45 mph. Winds shift to westerly in the
late afternoon and evening.

* Humidity...RH reductions to 12 to 17 percent in the
afternoon. Nighttime recoveries of 50 to 80 percent Wednesday
morning.

* Duration...3 to 6 hours.

* Impacts...The combination of gusty 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™

Red Flag Warning issued September 1 at 12:43AM PDT until September 1

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