RED FLAG WARNING IN EFFECT FROM THIS AFTERNOON THROUGH SATURDAY EVENING FOR ALL MOUNTAINS AND SOUTHERN SANTA BARBARA COUNTY FOR EXTREME HEAT AND DRY CONDITIONS WITH LOCALLY GUSTY WINDS. .Red Flag conditions and durations are likely over the areas of most concern, including southern Santa Barbara County, the Santa Monica Mountains, and the Santa Susana Mountains. For the rest of the mountains and foothills, while winds will limit the potential for standard red flag criteria, there is a history of large fires with similar weather conditions during this time of the year, especially considering the plume dominated fire potential. So a Red Flag Warning will be in effect to handle this threat. * WINDS. North 15 to 30 mph with gusts up to 45 mph, strongest in the overnight. Gusty and erratic winds possible with any new fires. * RELATIVE HUMIDITY. Minimums 8 to 15 percent inland of the beaches. Poor to minimal overnight recoveries of 12 to 25 percent in the foothills and mountains. * TEMPERATURES. Maximums between 100 and 110 common in the foothills and mountains, with minimums between 82 and 92. * IMPACTS. If fire ignition occurs, conditions are favorable for extreme fire behavior which would threaten life and property.