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The National Weather Service has issued a RED FLAG WARNING for Marin County from Friday at 10 pm through Sunday at 10 am. This type of fire weather is extremely unusual in Marin in December - based on this season's events, FIRESafe MARIN urges Marin residents to take extreme precautions in the coming days. Strong northerly winds are predicted in the North Bay hills, with very low humidities and unusually low fuel-moistures. The NWS upgraded this from a Fire Weather Watch to a RED FLAG WARNING early Friday, based on observed conditions.
FIRESafe MARIN has developed a 7 step (7-day) guide to quickly preparing your home and family for wildfire, all in less than 1 hour per-day. We recommend that TODAY you read and complete Day 1: Clean your roof and rain gutters, and Day 5: Now That You're Ready, Get Set! in advance of the predicted fire-weather.
An upper level high pressure area over California will move west out over the eastern Pacific late this week allowing a mainly dry cold front and upper level trough to move southeast across the district Friday night into early Saturday morning. A Red Fag Warning is in effect Friday evening through Sunday morning due to gusty northerly winds combining with very low humidity values over the hills and mountains in the wake of this front. Dry weather then continues this weekend with generally poor recoveries in the mountains. It`s a low confidence forecast at this point, but a dry pattern may turn to a wet weather pattern by the middle of next week.