URGENT - FIRE WEATHER MESSAGE National Weather Service Sacramento CA 251 PM PDT Wed Sep 4 2019 ...A Red Flag Warning is in effect across portions of Interior Northern California from 5 PM today through late Thursday morning... .An area of low pressure off the coast will move through northwestern California this evening. As the system interacts with a pool of monsoonal moisture, scattered thunderstorms may break out across the northern Coastal Range, the Shasta County mountains, the Sierra north of I-80 and adjacent foothills, and Burney Basin. Initial activity may be dry in nature before turning to areas of wetting rains during the overnight hours. The potential for abundant lightning may trigger fire starts over seasonably dry fuels. CAZ213-214-263-266-268-279-051800- /O.UPG.KSTO.FW.A.0004.190905T0000Z-190905T1800Z/ /O.NEW.KSTO.FW.W.0004.190905T0000Z-190905T1800Z/ Eastern Portion of Shasta/Trinity NF- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP-Southeast Edge Shasta- Trinity NF and Western Portions of Tehama-Glenn Unit- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Beckworth Peak)-Eastern Mendocino NF- 251 PM PDT Wed Sep 4 2019 ...RED FLAG WARNING IN EFFECT UNTIL 11 AM PDT THURSDAY FOR LIGHTNING FOR FIRE WEATHER ZONES 213, 214, 263, 266, 268, AND 279 INCLUDING THE MOUNTAINS, FOOTHILLS, AND BURNEY BASIN... The National Weather Service in Sacramento has issued a Red Flag Warning, which is in effect until 11 AM PDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 213, 214, 263, 266, 268, and 279. This includes the northern Coastal Range, the Shasta County mountains, the Sierra north of I-80 and adjacent foothills, and Burney Basin. * WIND...Gusty and erratic winds around thunderstorms. Isolated wind gusts up to 40 mph. * HUMIDITY...Minimum 10-20 percent; Overnight recoveries around 50-70 percent. * THUNDERSTORMS...Potential for a mixture of dry and wet thunderstorms causing local fire starts due to lightning. * IMPACTS...any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Abundant lightning on existing very dry fuels could cause numerous new fire ignitions. Gusty and erratic outflow winds could also create extreme fire growth potential.
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