CORRECTION TO INCLUDE SOUTHERN VENTURA COUNTY MOUNTAINS IN THE RED FLAG WARNING FOR TONIGHT THROUGH MONDAY. . RED FLAG WARNING IN EFFECT THIS EVENING THROUGH MONDAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES. . FIRE WEATHER WATCH IN EFFECT 6 PM TUESDAY UNTIL 6 AM WEDNESDAY FOR THE MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND INTERIOR SANTA BARBARA COUNTIES. . FIRE WEATHER WATCH IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LA AND VENTURA COUNTIES DUE TO THE POTENTIAL FOR SIGNIFICANT SANTA ANA WIND EVENT COMBINED WITH LOW HUMIDITIES. .A weak cold front brought minimal rainfall yesterday for areas south of Point Conception, with rainfall accumulations mostly less than 0.10 inches. For today, gusty northerly winds will bring a drying trend, with elevated fire weather conditions across southern Santa Barbara county, the Highway 33 corridor, Santa Monica mountains, and Santa Susana mountains this afternoon and evening as humidity levels lower to between 15 and 30 percent. By tonight and Monday, a Santa Ana wind event will likely bring critical fire weather conditions to wind prone areas of Los Angeles and Ventura counties. Areas in the Red Flag Warning will be at greater risk for rapid fire spread and extreme fire behavior if ignitions were to occur. A potentially stronger, more widespread, and longer duration Santa Ana wind event could bring widespread critical fire weather conditions to wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. With higher confidence in this upcoming significant Santa Ana wind event Wednesday into Thursday, a Fire Weather Watch has been issued. . FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS OF LOS ANGELES COUNTY. * WINDS. Northeast 25 to 40 mph with damaging gusts up to 60 mph tonight into Monday morning. Isolated gusts 60 to 80 mph possible tonight into Monday morning across the San Gabriels. Offshore winds will diminish some on Monday night into Tuesday, then increase to 30 to 50 mph with potential for widespread damaging gusts of 60 to 80 mph on Wednesday. * RELATIVE HUMIDITY. 20 to 30 percent will be common this evening, falling to between 12 and 25 percent by Monday. Humidity levels will likely fall to between 8 and 15 percent with the second Santa Ana wind event Wednesday afternoon, and linger into Thursday. * IMPACTS. If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property. With the threat of even stronger Santa Ana winds and drier fuels with the Wednesday/Thursday Santa Ana event, there will be an increased risk for long range spotting.
