Fire Weather Watch 01/05/2025 10:27 for California areas

...FIRE WEATHER WATCH IN EFFECT FROM LATE TUESDAY MORNING THROUGH FRIDAY AFTERNOON FOR POTENTIAL WIDESPREAD STRONG/DAMAGING NORTH TO NORTHEAST WINDS AND LOW RELATIVE HUMIDITY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY NIGHT INTO WEDNESDAY FOR LA COUNTY COAST EXTENDING INTO PALOS VERDES, AND CATALINA ISLAND DUE TO MODERATE TO STRONG NORTH TO NORTHEAST WINDS AND LOW RELATIVE HUMIDITY... .While there is still some uncertainty in this week's strong wind event and corresponding humidity levels at the onset, the most likely outcome is for widespread strong/damaging north to northeast winds with an extended period of dangerous Red Flag conditions. While the longer duration of strong winds is expected to be focused across Los Angeles and Ventura counties, there is a 20-30 percent chance of shorter duration Red Flag conditions across portions of Santa Barbara and San Luis Obispo counties. With widespread damaging winds likely between Tuesday afternoon and Wednesday night in Los Angeles and Ventura counties, there will be an increased risk for downed trees and powerlines, as well as power outages. There is also the potential for moderate to strong north to northeast winds for the LA county coast (especially Hollywood Hills, Beverly Hills, and Sepulveda Pass) extending into Palos Verdes and Catalina Island Tuesday night into Wednesday, resulting in the Fire Weather Watch for these areas. There is a high probability of strong mountain wave wind conditions during the peak of the event Tuesday afternoon into Wednesday night, which could bring strong/damaging winds to areas that typically do not see strong winds, including portions of the San Gabriel Valley and San Fernando Valley. There is a high risk of long duration critical fire weather conditions for much of LA/Ventura counties between Tuesday and Friday, with upgrades to Red Flag Warnings in highest confidence areas likely later today. * WINDS...Most Likely Outcome-Strong/damaging north to northeast wind event Tuesday afternoon into Wednesday night with sustained winds of 35 to 50 mph and widespread damaging wind gusts of 50 to 80 mph. Strongest winds likely in the mountains, foothills, and valleys, with isolated gusts of 80 to 100 mph possible for most favored mountain/foothill areas. Moderate north to northeast winds will likely persist Thursday into Friday. * RELATIVE HUMIDITY...Most Likely Outcome-Humidities likely falling to between 20 and 30 percent in many areas by early to mid Tuesday afternoon, then widespread 15 percent or less potentially Tuesday night into Friday. There is also a chance of localized single digit humidities at times Wednesday into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be the potential for downed trees and powerlines, as well as power outages. * ADDITIONAL DETAILS...Confidence is growing that this will likely be a widespread damaging windstorm across portions of Los Angeles and Ventura counties with dangerous fire weather conditions.