Santa Clarita Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Santa Clarita.

Use the Radar Maps link provided to understand the trajectory of a storm.

Wind Advisory issued November 5 at 12:32AM MST until November 6 at 8:00PM MST by NWS Phoenix AZ

* WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...In Arizona, Parker Valley. In California, Chuckwalla Mountains, Chuckwalla Valley, and Palo Verde Valley. * WHEN...From 3 AM MST /2 AM PST/ to 8 PM MST /7 PM PST/ Wednesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

Freeze Watch issued November 5 at 12:32AM MST until November 7 at 9:00AM MST by NWS Phoenix AZ

* WHAT...Sub-freezing temperatures below 32 degrees possible. * WHERE...Western portion of Joshua Tree National Park. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Red Flag Warning issued November 4 at 11:01PM PST until November 7 at 7:00AM PST by NWS Eureka CA

* AFFECTED AREA...Fire weather zone 264. Fire weather zone 277. * WIND...Northeast winds 15 to 25 mph with gusts from 35 to 45 mph. Isolated gusts up to 50 mph along ridgetops and highest terrain. * HUMIDITY...As low as 16 to 20 percent Tuesday afternoon and Wednesday. Modest recoveries of 30 to 65 percent overnight into Wednesday and Thursday morning. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

Freeze Warning issued November 4 at 10:48PM PST until November 5 at 9:00AM PST by NWS Los Angeles/Oxnard CA

* WHAT...Sub-freezing temperatures between 29 and 32 degrees expected. * WHERE...San Luis Obispo County Interior Valleys, especially on the Carrizo Plain. * WHEN...Until 9 AM PST Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Frost Advisory issued November 4 at 10:48PM PST until November 5 at 9:00AM PST by NWS Los Angeles/Oxnard CA

* WHAT...Temperatures as low as 33 degrees will result in frost formation. * WHERE...Southern Salinas Valley. * WHEN...Until 9 AM PST Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Wind Advisory issued November 4 at 10:48PM PST until November 6 at 4:00AM PST by NWS Los Angeles/Oxnard CA

* WHAT...North winds 35 to 55 mph with isolated gusts up to 60 mph expected. * WHERE...San Luis Obispo County and Santa Barbara County Interior Mountains, southern Santa Barbara County, and the Santa Lucia and Santa Ynez Mountains. * WHEN...From 4 PM Tuesday to 4 AM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued November 4 at 10:48PM PST until November 7 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Northeast winds 35 to 55 mph with isolated gusts up to 60 mph expected. * WHERE...Catalina and Santa Barbara Islands, Eastern Antelope Valley Foothills, Eastern San Fernando Valley, Lake Casitas, Los Angeles County Inland Coast including Downtown Los Angeles, Los Angeles County San Gabriel Valley, Ojai Valley, and Western Antelope Valley Foothills. * WHEN...From 4 AM Wednesday to 4 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

High Wind Warning issued November 4 at 10:48PM PST until November 7 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Northeast winds 60 to 80 mph expected with isolated gusts up to 100 mph in mountain locations. * WHERE...A portion of southwest California. * WHEN...From 4 AM Wednesday to 4 PM PST Thursday. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...East-west portions of Highway 101 and 118, and Interstate 210 could see extreme cross winds.

Fire Weather Watch issued November 4 at 9:18PM PST until November 7 at 1:00PM PST by NWS San Diego CA

...RED FLAG WARNING IS IN EFFECT FOR EARLY WEDNESDAY INTO THURSDAY EVENING FOR PORTIONS OF THE SAN BERNARDINO MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY EVENING INTO THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN DIEGO MOUNTAINS AND EASTERN VALLEYS AND THE RIVERSIDE COUNTY MOUNTAINS... * WINDS...Northeast 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * LOCATION...Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest.

Fire Weather Watch issued November 4 at 9:18PM PST until November 7 at 1:00PM PST by NWS San Diego CA

...RED FLAG WARNING IS IN EFFECT FOR EARLY WEDNESDAY INTO THURSDAY EVENING FOR PORTIONS OF THE SAN BERNARDINO MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY EVENING INTO THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN DIEGO MOUNTAINS AND EASTERN VALLEYS AND THE RIVERSIDE COUNTY MOUNTAINS... * WINDS...Northeast 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * LOCATION...San Diego County Inland Valleys and San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest.

Red Flag Warning issued November 4 at 9:18PM PST until November 7 at 6:00PM PST by NWS San Diego CA

...RED FLAG WARNING IS IN EFFECT FOR EARLY WEDNESDAY INTO THURSDAY EVENING FOR PORTIONS OF THE SAN BERNARDINO MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY EVENING INTO THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN DIEGO MOUNTAINS AND EASTERN VALLEYS AND THE RIVERSIDE COUNTY MOUNTAINS... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * LOCATION...Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest and Orange County Inland Areas.

Red Flag Warning issued November 4 at 9:18PM PST until November 7 at 6:00PM PST by NWS San Diego CA

...RED FLAG WARNING IS IN EFFECT FOR EARLY WEDNESDAY INTO THURSDAY EVENING FOR PORTIONS OF THE SAN BERNARDINO MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY EVENING INTO THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN DIEGO MOUNTAINS AND EASTERN VALLEYS AND THE RIVERSIDE COUNTY MOUNTAINS... * WINDS...Northeast 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire and San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest.

High Wind Watch issued November 4 at 9:15PM PST until November 7 at 2:00PM PST by NWS San Diego CA

* WHAT...Northeast winds 20 to 30 mph with gusts 40 to 60 mph. Gusts up to 70 mph are possible in the foothills of the San Bernardino mountains. Strongest winds in the Inland Empire will occur below the Cajon Pass. * WHERE...San Bernardino County Mountains and San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A Red Flag Warning is also in effect for portions of the San Bernardino county mountains and the Inland Empire. Critical fire weather conditions are expected.

High Wind Watch issued November 4 at 9:15PM PST until November 7 at 2:00PM PST by NWS San Diego CA

* WHAT...Northeast winds 25 to 35 mph with gusts 40 to 60 mph, gusts to 65 mph in the wind prone passes and canyons in the Santa Ana mountains. * WHERE...Orange County Inland Areas and Santa Ana Mountains and Foothills. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A Red Flag Warning is also in effect for the Santa Ana mountains and portions of inland Orange County. Critical fire weather conditions are expected.

Red Flag Warning issued November 4 at 6:48PM PST until November 6 at 4:00AM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...North to northeast 20 to 35 mph with gusts 40 to 55 mph. Isolated gusts to 60 mph near Montecito Hills. * RELATIVE HUMIDITY...Lowering to 8 to 15 percent by Wednesday afternoon and lingering into Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property.

Red Flag Warning issued November 4 at 6:48PM PST until November 6 at 4:00AM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...North to northeast 20 to 40 mph with gusts 40 to 55 mph. Isolated gusts to 60 mph across favored ridgetops. * RELATIVE HUMIDITY...15 to 20 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.

Red Flag Warning issued November 4 at 6:48PM PST until November 7 at 12:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...Northeast 15 to 30 mph with gusts 35 to 50 mph. Strongest across higher terrain. * RELATIVE HUMIDITY...Lowering to 8 to 15 percent by Wednesday afternoon and lingering into Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property.

Red Flag Warning issued November 4 at 6:48PM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...Offshore winds will continue to diminish this afternoon into tonight. Northeast winds will increase to 35 to 50 mph with damaging gusts of 60 to 80 mph Wednesday into Wednesday night. Offshore Winds are expected to be 5 to 10 mph weaker on Thursday. * RELATIVE HUMIDITY...10 to 20 percent today. Humidity levels will likely fall to between 8 and 15 percent by 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.

Red Flag Warning issued November 4 at 6:48PM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...Offshore winds will continue to diminish this afternoon into tonight. Northeast winds will increase to 30 to 45 mph with damaging gusts of 50 to 70 mph Wednesday into Wednesday night. Offshore winds are expected to be 5 to 10 mph weaker on Thursday. * RELATIVE HUMIDITY...12 to 20 percent today. Humidity levels will likely fall to between 8 and 15 percent by 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.

Red Flag Warning issued November 4 at 6:48PM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT 4 PM TUESDAY UNTIL 4 AM WEDNESDAY FOR MOUNTAINS AND FOOTHILLS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES AND SANTA BARBARA SOUTH COAST... ...RED FLAG WARNING IN EFFECT 4 AM WEDNESDAY UNTIL 6 PM THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT 7 AM WEDNESDAY UNTIL NOON THURSDAY FOR INLAND LA COAST (ESPECIALLY HOLLYWOOD HILLS), OJAI/LAKE CASITAS, AND CHANNEL ISLANDS/CATALINA ISLAND... There is increased confidence of a stronger, more widespread, and longer duration Santa Ana wind event which will likely bring widespread critical fire weather conditions to many wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. This will be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening offshore pressure gradients (LAX- Daggett peaking at -6 to - 8 mb), and moderate cold air advection. The strongest winds with this upcoming Santa Ana wind event are expected to be Wednesday morning into Wednesday night when widespread damaging wind gusts of 60 to 80 mph are likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), with isolated gusts of 80 to 100 mph possible in favored areas of the San Gabriels. For wind prone coastal and valley areas of Los Angeles and Ventura counties, damaging gusts of 50 to 70 mph will be likely (including the Malibu coast and Ventura county coastal plain). Due to the strong upper level wind support, typical wind sheltered areas such as portions of the LA basin (mainly Hollywood Hills), Lake Casitas and Ojai, as well as the Channel Islands and Catalina Island are expected to see gusty north to northeast winds with associated Red Flag fire weather concerns. Humidity levels are also expected to lower to between 8 to 15 percent by Wednesday afternoon with these low humidities likely to linger into Thursday. In addition, there will be gusty north to northeast winds overlapping with humidities around 15 to 20 percent late Tuesday afternoon into Tuesday night across the mountains and foothills of San Luis Obispo and Santa Barbara counties, as well as the Santa Ynez mountains, Santa Barbara south coast, and Highway 33 corridor. These areas are now under a Red Flag Warning for late Tuesday into Tuesday night, with gusts of 35 to 55 mph being common, except isolated gusts up to 60 mph. This is a dangerous fire weather event. Any new fires in the Red Flag Warning area will have rapid fire spread, extreme fire behavior, and long range spotting. * WINDS...Offshore winds will continue to diminish this afternoon into tonight. Northeast winds will increase to 30 to 45 mph with damaging gusts of 50 to 70 mph Wednesday into Wednesday night. Strongest winds expected along the Highway 118/210 corridors in eastern Ventura county valleys to western San Fernando valley, with highest risk for Simi Valley, Moorpark, Porter Ranch, and San Fernando. Offshore winds are expected to be 5 to 10 mph weaker on Thursday. * RELATIVE HUMIDITY...10 to 20 percent today. Humidity levels will likely fall to between 8 and 15 percent by 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.

Red Flag Warning issued November 4 at 4:56PM PST until November 7 at 7:00AM PST by NWS San Francisco CA

...RED FLAG WARNING IN EFFECT TUESDAY MORNING THROUGH THURSDAY MORNING FOR THE BAY AREA AND CENTRAL COAST AS STRONG OFFSHORE WINDS AND CRITICALLY DRY CONDITIONS ARE EXPECTED TO DEVELOP... .Offshore winds are anticipated to increase early Tuesday morning and persist through Thursday morning. North to northeasterly wind gusts will average between 25 and 50 mph, particularly across the higher terrain of the Santa Cruz Mountains, East Bay Hills, North Bay Mountains, as well as interior portions of Napa and Sonoma counties. In particular, these areas of Napa and Sonoma counties have an increased likelihood of wind gusts in excess of 55 mph late Tuesday and through the day on Wednesday. Afternoon humidity values will fall to between 15 and 25 percent. Overnight humidity recovery will be poor with readings between 25 and 45 percent. The combination of the aforementioned winds and humidity will translate to fires exhibiting a large resistance to control and thereby creating a hazardous and extreme wildfire environment. Fire crews and residents are urged to remain abreast of the weather forecast over the next couple of days. * AFFECTED AREA...Fire Weather Zone 006 San Francisco, Fire Weather Zone 502 Marin Coastal Range, Fire Weather Zone 503 Sonoma Coastal Range, Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 506 North Bay Interior Valleys, Fire Weather Zone 508 San Francisco Bay Shoreline, Fire Weather Zone 509 San Francisco Peninsula Coast, Fire Weather Zone 510 East Bay Interior Valleys, Fire Weather Zone 512 Santa Cruz Mountains, Fire Weather Zone 513 Santa Clara Valley Including San Jose, Fire Weather Zone 514 Eastern Santa Clara Hills, Fire Weather Zone 515 East Bay Hills, Fire Weather Zone 517 Santa Lucia Mountains and Los Padres National Forest, Fire Weather Zone 518 Mountains of San Benito County And Interior Monterey County including Pinnacles National Park and Fire Weather Zone 529 Northern Monterey Bay. * TIMING...11 AM Tuesday until 7 AM Thursday. * WINDS...Offshore winds up to or above 25 mph with gusts in excess of 55 mph. * RELATIVE HUMIDITY...Afternoon humidity as low as 15%. Overnight humidity recovery between 25 and 45%. * LIGHTNING...None anticipated. * IMPACTS...Despite recent rainfall, a long duration offshore flow event is anticipated. This will result in the rapid curing of fuels. The combination of strong winds and low humidity will cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended and may be prohibited in some areas.

Lake Wind Advisory issued November 4 at 1:09PM PST until November 6 at 4:00PM PST by NWS Reno NV

* WHAT...East winds 10 to 20 mph with gusts up to 35 mph and waves 1 to 3 feet for Lake Tahoe, highest along western shores. * WHERE...Greater Lake Tahoe Area. * WHEN...From 10 PM Tuesday to 4 PM PST Wednesday. * IMPACTS...Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve.

Red Flag Warning issued November 4 at 12:30PM PST until November 6 at 4:00PM PST by NWS Sacramento CA

The National Weather Service in Sacramento has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 10 AM Tuesday to 4 PM PST Wednesday. * Winds...North winds 20 to 30 mph with gusts up to 50 mph expected. Strongest winds are expected across the Delta and far western side of the Central Valley. * Humidity...10 to 25 percent * Highest Threat...West half of the Sacramento Valley and Delta area * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended

Wind Advisory issued November 4 at 12:24PM PST until November 6 at 6:00PM PST by NWS Sacramento CA

* WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. Strongest winds are expected across the Delta and far western side of the Central Valley. * WHERE...Carquinez Strait and Delta, Central and Southern Sacramento Valley, Mountains Southwestern Shasta County to Western Colusa County, Northern San Joaquin Valley. * WHEN...From 10 PM Tuesday to 6 PM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

High Surf Advisory issued November 4 at 8:43AM PST until November 6 at 9:00AM PST by NWS Los Angeles/Oxnard CA

* WHAT...Large breaking waves of 8 to 13 feet with dangerous rip currents. Highest surf will occur at west and northwest facing beaches. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...Until 9 AM PST Wednesday. * IMPACTS...There is an increased risk for ocean drowning. Rip currents can pull swimmers and surfers out to sea. Large breaking waves can cause injury, wash people off beaches and rocks, and capsize small boats near shore.