9/25/2020 NWS Hazards Summary

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California WWUS86 KSTO 251708Beg ins Ends Last Updated Red Flag Warning (MTR) + RFWSTO Sat Sep 26 9:00pm Mon Sep 28 8:00am 6hrs ago Red Flag Warning (STO) - Sat Sep 26 9:00pm Mon Sep 28 12:00pm 4mins ago Issued by WFO Sacramento California (STO) Area Descriptions: URGENT - FIRE WEATHER MESSAGE Central Sacramento Valley including Glenn, Colusa, Yuba, Northern National Weather Service Sacramento CA Sutter, Butte County Below 1000 Ft Eastern Delta 1008 AM PDT Fri Sep 25 2020 Eastern Mendocino NF Eastern Portion of Shasta, Trinity NF Northern Motherlode From 1000 to 3000 Ft. From Yuba To Amador ...Critical Fire Weather Conditions Late Saturday Evening through Counties Northern Sacramento Valley to Southern Tehama County Line Below Monday Morning... 1000 Ft Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft - Excludes the Delta .Gusty northerly and easterly winds will develop over portions of Northern Sierra Foothills from 1000 to 3000 Ft. Includes Nevada-Yuba- the Sacramento Valley, the northern Sierra and western foothills, Placer RU and Anador-Eldorado RU Northern Sierra Including Lassen NP and Plumas and Lassen NF, S and the Coastal Range late Saturday evening into Monday morning. West of the Sierra Crest - West of Evans Peak, Grizzly Peak, Beckworth Peak Daytime humidities will be extremely low in the single digits to Southeast Edge Shasta, Trinity NF and Western Portions of Tehama, teens with poor overnight humidity recoveries. The combination of Glenn RU Southern Motherlode From 1000 to 3000 Ft, Calaveras and Toulumne wind, low humidity, and hot conditions will result in critical fire Counties weather conditions. These conditions may impact ongoing wildfires. Southern Sacramento Valley In Yolo, Sacramento, Far Western Placer, Southern Sutter and Solano County Below 1000 Ft - Excludes the Delta Extreme caution should be taken to prevent new fire starts. Stanislaus National Forest Tahoe - Eldorado National Forest CAZ213-215>221-263-266>269-279-261200- V i e w Te x t S t a t e m e n t /O.UPG.KSTO.FW.A.0006.200926T1800Z-200928T1500Z/ View Text Statement /O.NEW.KSTO.FW.W.0009.200927T0400Z-200928T1900Z/ Eastern Portion of Shasta/Trinity NF- Map Unavailable Northern Sacramento Valley to Southern Tehama County Line Below High Surf Advisory (MTR) + 1000 Ft- Now Fri Sep 25 8:00pm 5hrs ago High Surf Advisory (LOX) + Central SacramentoNo wValley inS aGlenn,t Sep 26 9Colusa,:00am Yuba, Northern4h rs ago Fire Weather Watch (EKA) + Sutter,Su nand Sep Butte27 5:00 amCounty BelowMon S1000ep 28 8Ft-:00a m 5hrs ago Fire Weather Watch (EKA) + SouthernSa t SSacramentoep 26 8:00pm Valley inMo nYolo- Sep 28 8:00am 5hrs ago Beach Hazards Statement (MTR) + Sacramento Far WesternNow Placer,Fri Ssouthernep 25 8:00p mSutter and Solano5 hCountyrs ago Beach Hazards Statement (EKA) + Below 1000 Ft-CarquinezNow StraitFri S eandp 25 Delta-12:00pm 5hrs ago Air Quality Alert (HNX) + Northern San Joaquin Valley Minon SSanep 2 8Joaquin 5:00pm and Stanislaus22 hrs ago Counties Below 1000 ft- Marine Areas Southern MotherlodeBegins From 1000 to 3000 EFt.nds Includes portionsLast Upd aofted Gale Warning (LOX) + Calaveras-TuolumneNo wUnit-StanislausSat Sep 2 6NF 3: 0West0am of the Sierra53 mCrest-ins ago Small Craft Advisory (MFR) + Southeast Edge Shasta-TrinityNow Sa tNF Se pand 26 5 :Western00am Portions of 7Tehama-hrs ago Small Craft Advisory (LOX) + Glenn Unit- Now Sat Sep 26 9:00pm 53mins ago Small Craft Advisory (EKA) + Northern Sierra FoothillsNow fromSat S1000ep 26 6to:0 0a3000m Ft. Includes1hrs 37 mportionsins ago Small Craft Advisory (EKA) + of Shasta-TrinityN oandw Butte Units-Fri Sep 2 5 6:00pm 1hrs 37mins ago Small Craft Advisory (MTR) + Northern MotherlodeNow From 1000Sa tto Se p3000 26 9: 0Ft.0pm Includes portions1hrs 21mins ofago Nevada-Yuba-Placer-Amador and ElDorado Units- Small Craft Advisory (MTR) + Fri Sep 25 3:00pm Sat Sep 26 9:00pm 1hrs 21mins ago Northern Sierra Including Lassen NP and Plumas and Lassen NF/S Gale Watch (EKA) + Sun Sep 27 8:00am Sun Sep 27 9:00pm 1hrs 37mins ago West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Gale Watch (EKA) + Sun Sep 27 8:00am Mon Sep 28 3:00am 1hrs 37mins ago Beckworth Peak)-

2 Northern Sierra Including the Tahoe and ElDorado NF/S West of the Sierra Crest-Eastern Mendocino NF- US Dept of Commerce Disclaimer Privacy Policy National Oceanic and Atmospheric Administratio n1008 AM PDT Fri Sep 25 2020 Information Quality Freedom of Information Act National Weather Service Help (FOIA) Western Region Headquarters Glossary About Us 125 South State Street ...RED FLAG WARNING IN EFFECT FROM 9 PM SATURDAYCaree r OTOpp orNOONtunities PDT Salt Lake City, UT 84138-1102 MONDAY FOR GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 213, 215, 216, 217, 218, 219, 220, 221, 263, 266, Comments? Questions? Please Contact Us. 267, 268, 269, AND 279...

The National Weather Service in Sacramento has issued a Red Flag Warning, which is in effect from 9 PM Saturday to noon PDT Monday. The Fire Weather Watch is no longer in effect.

* 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 25 mph with gusts up to 35 to 40 mph. Stronger gusts up to 45 to 55 mph may be possible through favored gaps and canyons. Strongest winds expected Saturday night through Sunday, especially for the west side of the Sacramento Valley and the Sierra foothills.

* HUMIDITY...Minimum daytime humidity of 10 to 20 percent. Maximum overnight humidity between 15 and 40 percent. Higher humidity https://www.wrh.noaa.gov/hazardSummary/?state=ca 1/2 9/25/2020 NWS Hazards Summary recovery expected in the Central Valley and Delta areas.

* IMPACTS...Numerous wildfires are already occurring. Extreme fire safety precautions should be exercised to prevent any additional fires. Outdoor burning should be avoided.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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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US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Western Region Headquarters 125 South State Street,Salt Lake City, UT 84138-1102 [email protected]

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