# Red Flag Warning: Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Southern Sierra Front - Alpine/Northern Mono/Southern Lyon/Western Mineral Counties — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/1b0f57d469e69728

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-24 10:28 ingested 2026-09-25 02:53

[original source ↗](http://www.weather.gov/)

## extract

Red Flag Warning — Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Southern Sierra Front - Alpine/Northern Mono/Southern Lyon/Western Mineral Counties
Severity: Severe. Certainty: Likely.
The National Weather Service in Reno has issued a Red Flag
Warning for gusty winds and low humidity, which is in effect from
noon to 10 PM PDT Friday. The Fire Weather Watch is no longer in
effect.

* CHANGES...Fire Weather Watch upgraded to a Red Flag Warning.

* Affected Area...Fire Weather Zone 420 Northern Sierra Front
including Carson City, Douglas, Storey, Southern Washoe,
Western Lyon, and Far Southern Lassen Counties, Fire Weather
Zone 421 Southern Sierra Front including Alpine, Northern
Mono, Southern Lyon, and Western Mineral Counties.

* Winds...Southwest to west winds 20 to 30 mph with gusts up to
45 mph.

* Humidity...As low as 17 percent in the afternoon.

* Duration...4 to 7 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.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.