KOLO 8 News Now | Northern Nevada, Reno, Lake Tahoe | First Alert Weather

Red Flag Warning

Areas Affected: Northern Motherlode From 1000 to 3000 Ft. From Yuba To Amador Counties; Northern Sierra Including Lassen NP and Plumas and Lassen NF, S West of the Sierra Crest - West of Evans Peak, Grizzly Peak, Beckworth Peak; Southern Motherlode From 1000 to 3000 Ft, Calaveras and Toulumne Counties; Stanislaus National Forest; Tahoe - Eldorado National Forest

NWS Sacramento (North Central California)

...CRITICAL FIRE WEATHER CONDITIONS THROUGH EARLY TUESDAY MORNING... .Gusty northerly or offshore winds over the northern and western Sacramento Valley and adjacent foothills will redevelop this afternoon and expand southeastward late today across portions of the Sierra Nevada through early Tuesday morning. The combination of offshore winds and dry airmass are expected to bring critical fire weather conditions. ...RED FLAG WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT TUESDAY FOR FIRE WEATHER ZONES 220, 221, 267, 268, AND 269...

* WIND...Northeast winds 10 to 20 mph with gusts 20 to 25 mph over exposed ridges and stronger through aligned canyons. Strongest winds expected during overnight and morning hours.

* HUMIDITY...Daytime humidity of 12 to 25 percent with the main concern being minimal humidity recovery overnight.

* IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Interact with us via social media www.facebook.com/nws.sacramento www.twitter.com/nwssacramento

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.