Weather Alerts for Greater Lake Tahoe Area (CA)Issued by the National Weather Service |
 RED FLAG WARNING |
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| GREATER LAKE TAHOE AREA (CA) | ||
Areas Affected: Central Sacramento Valley including Glenn, Colusa, Yuba, Northern Sutter, Butte County Below 1000 Ft - Eastern Delta - Eastern Mendocino NF - Eastern Portion of Shasta, Trinity NF - Northern Motherlode From 1000 to 3000 Ft. From Yuba To Amador Counties - Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft - Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft - Excludes the Delta - Northern Sierra Foothills from 1000 to 3000 Ft. Includes Nevada-Yuba-Placer RU and Anador-Eldorado RU - Northern Sierra Including Lassen NP and Plumas and Lassen NF, S West of the Sierra Crest - West of Evans Peak, Grizzly Peak, Beckworth Peak - Southeast Edge Shasta, Trinity NF and Western Portions of Tehama, Glenn RU - Southern Motherlode From 1000 to 3000 Ft, Calaveras and Toulumne Counties - Southern Sacramento Valley In Yolo, Sacramento, Far Western Placer, Southern Sutter and Solano County Below 1000 Ft - Excludes the Delta - Stanislaus National Forest - Tahoe - Eldorado National Forest |
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| Effective: Sun, 9/27 2:35pm | Updated: Sun, 9/27 6:20pm | Urgency: Expected |
| Expires: Mon, 9/28 9:00pm | Severity: Severe | Certainty: Likely |
Details:
...Extreme Fire Weather Conditions through Monday Evening... .Gusty northerly and easterly winds will continue to impact portions of the Sacramento Valley, the northern Sierra and western foothills, and the Coastal Range through Monday. Daytime humidities will be extremely low in the single digits to teens with poor overnight humidity recoveries. The combination of wind, low humidity, and hot conditions will result in extreme fire weather conditions. This type of extreme fire weather conditions only occurs a few times a year. These conditions may impact ongoing wildfires. Extreme caution should be taken to prevent new fire starts. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY FOR GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 213, 215, 216, 217, 218, 219, 220, 221, 263, 266, 267, 268, 269, AND 279... * AFFECTED AREA...Portions of interior northern California including the west side of the Sacramento Valley, the Coastal Range, the western Sierra Nevada and foothills, and the Delta. * WIND...North to east winds 15 to 30 mph with gusts from 40 to 45 mph. Stronger gusts up to 65 mph may be possible through favored gaps and canyons. * HUMIDITY...Minimum daytime humidity of 5 to 20 percent. Maximum overnight humidity between 15 and 40 percent. * IMPACTS...Numerous wildfires are already occurring. Extreme fire safety precautions should be exercised to prevent any additional fires. Outdoor burning should be avoided. * ADDITIONAL DETAILS...Strongest winds are expected to be over the Sierra and adjacent foothills tonight and into tomorrow morning. Interact with us via social media www.facebook.com/nws.sacramento www.twitter.com/nwssacramento Information: 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. |
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 WIND ADVISORY |
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| GREATER LAKE TAHOE AREA (CA) | ||
Areas Affected: Carquinez Strait and Delta - Central Sacramento Valley - Mountains Southwestern Shasta County to Western Colusa County - Northern Sacramento Valley - Southern Sacramento Valley |
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| Effective: Sun, 9/27 3:04pm | Updated: Sun, 9/27 6:20pm | Urgency: Expected |
| Expires: Sun, 9/27 8:00pm | Severity: Minor | Certainty: Likely |
Details:
...Gusty North to East Winds through Monday Morning.. .Gusty winds remain in the forecast through tomorrow morning. The strongest winds will be observed in the northern and western side of the Sacramento Valley and the Sierra and adjacent foothills. Winds begin to decrease late tomorrow morning. ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...Northwest winds 15 to 25 mph with gusts up to 40 mph... locally up to 45 mph expected. * WHERE...Northern Sacramento Valley, Central Sacramento Valley, Southern Sacramento Valley, Carquinez Strait and Delta and Mountains Southwestern Shasta County to Western Colusa County Counties. * WHEN...From now to 8 PM PDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Wildfires within the advisory area could have explosive growth. Information: Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. |
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