Southland Overview
- Freeze Watch
* WHAT...Sub-freezing temperatures as low as 34 possible. * WHERE...Antelope Valley, Cuyama Valley, San Luis Obispo County Interior Valleys, and Southern Salinas Valley. * WHEN...Until 9 AM PST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.More
- Red Flag Warning
...RED FLAG WARNING IN EFFECT UNTIL 11 AM FRIDAY FOR ALL THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... .Offshore flow continues to weaken through the evening as the region begins to return to more typical diurnal wind patterns. Still some lingering gusty northeast winds across parts of LA/Ventura Counties, some of which will continue into the overnight hours and through the Saturday morning, though generally much lighter with peak gusts between 20 and 30 mph. Strongest winds will be over the higher ridgetops. Across the Ventura coastal plain and coastal valleys, a light west wind 6-12 mph is possible this afternoon through early evening before shifting back to northeast overnight into Friday morning. Humidity recoveries will remain quite poor tonight, with slowing increasing recoveries through the the weekend. Daytime humidities will rise slightly but remain mostly below 30 percent into the weekend away from the immediate coast. Over the weekend typical diurnal winds are expected and mostly under 15 mph. Humidities will slowly be climbing as well. * WINDS...Northeast winds 15 to 25 mph with gusts to 40 mph through this evening, lowering overnight. * RELATIVE HUMIDITY...Humidity levels between 8 and 15 percent. * 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.More
- Red Flag Warning
...RED FLAG WARNING IN EFFECT UNTIL 11 AM FRIDAY FOR ALL THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... .Offshore flow continues to weaken through the evening as the region begins to return to more typical diurnal wind patterns. Still some lingering gusty northeast winds across parts of LA/Ventura Counties, some of which will continue into the overnight hours and through the Saturday morning, though generally much lighter with peak gusts between 20 and 30 mph. Strongest winds will be over the higher ridgetops. Across the Ventura coastal plain and coastal valleys, a light west wind 6-12 mph is possible this afternoon through early evening before shifting back to northeast overnight into Friday morning. Humidity recoveries will remain quite poor tonight, with slowing increasing recoveries through the the weekend. Daytime humidities will rise slightly but remain mostly below 30 percent into the weekend away from the immediate coast. Over the weekend typical diurnal winds are expected and mostly under 15 mph. Humidities will slowly be climbing as well. * WINDS...Northeast winds 15 to 25 mph with gusts to 40 mph through this evening, becoming weaker overnight. * RELATIVE HUMIDITY...Humidity levels between 8 and 12 percent. * 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.More
- Air Quality Alert
* WHAT...The South Coast AQMD has issued an air quality alert due to increased fine particle pollution from wildfire smoke and a mandatory wood-burning ban for residents in the South Coast Air Basin. The No-Burn rule bans burning wood, pellets, and manufactured fire logs in any indoor or outdoor wood-burning device. * WHERE...Smoke impacts are expected in the San Gabriel Mountains, Santa Clarity Valley, San Fernando Valley, Santa Monica Mountains and Malibu Coast. Levels of particle pollution can vary by time and location depending on fire activity and local weather conditions. The wood-burning ban is in effect in the South Coast Air Basin, which includes non-desert portions of Los Angeles county. No-Burn Day alerts do not apply to areas above 3,000 feet in elevation. Homes that rely on wood as a sole source of heat, low-income households and those without natural gas service also are exempt from the requirement. * WHEN...Smoke advisory is in effect from 11 AM Friday to 3 PM Saturday and wood-burning ban is in effect on Friday. * IMPACTS...Particles in wildfire smoke can get deep into the lungs and cause serious health problems such as heart attacks, strokes, asthma attacks, and difficulty breathing. Everyone can be affected, but people with lung or heart disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. No-Burn Days are based on fine particle pollution levels that are forecasted for an entire 24-hour period, which may not be reflected in real-time air quality maps.More
- Air Quality Alert
* WHAT...The South Coast AQMD has issued a mandatory wood-burning ban for residents in the South Coast Air Basin. The No-Burn rule bans burning wood, pellets, and manufactured fire logs in any indoor or outdoor wood-burning device. * WHERE...The South Coast Air Basin, which includes Orange County and non-desert portions of Los Angeles, Riverside, and San Bernardino counties. No-Burn Day alerts do not apply to areas above 3,000 feet in elevation, the Coachella Valley, or the High Desert. Homes that rely on wood as a sole source of heat, low-income households and those without natural gas service also are exempt from the requirement. * WHEN...Friday. * IMPACTS...Particles in smoke can get deep into the lungs and cause health problems (including asthma attacks), increases in emergency room visits, and hospitalizations. No-Burn Days are needed to protect public health when fine particle pollution levels are expected to be high anywhere in the South Coast Air Basin. No-Burn Days are based on fine particle pollution levels that are forecasted for an entire 24-hour period, which may not be reflected in real- time air quality maps.More