San Martin 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 San Martin.

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

Red Flag Warning issued November 4 at 9:54AM PST until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...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 this morning, gradually diminishing in the afternoon. Isolated gusts 60 to 70 mph across the San Gabriels. Offshore winds will diminish some on tonight into Tuesday, then increase to 30 to 50 mph with potential for widespread damaging gusts of 60 to 80 mph on Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

Red Flag Warning issued November 4 at 9:54AM PST until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR GUSTY SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN FERNANDO VALLEY, SANTA CLARITA VALLEY, VENTURA COUNTY VALLEYS, CALABASAS, AND MALIBU COAST... * WINDS...North to northeast 15 to 30 mph with gusts 40 to 50 mph this morning., gradually decreasing this afternoon into evening. Strongest winds near higher terrain, as well as the Highway 118 corridor in western San Fernando Valley and Simi Valley, and the Malibu coast. Offshore winds will diminish some tonight into Tuesday, then increase to 25 to 40 mph with potential for gusts of 45 to 60 mph on Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

Red Flag Warning issued November 4 at 9:54AM PST until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA MONICA AND SANTA SUSANA MOUNTAINS... * WINDS...North to northeast 20 to 35 mph with gusts 40 to 50 mph, except isolated gusts to 60 mph western peaks, gradually diminishing in the afternoon. Offshore winds will diminish more tonight into Tuesday, then increase to 30 to 45 mph with potential for widespread damaging gusts of 60 to 70 mph Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

Fire Weather Watch issued November 4 at 9:54AM PST until November 6 at 6:00AM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. * WINDS...North to northeast 15 to 30 mph with gusts 35 to 45 mph. * RELATIVE HUMIDITY...Around 15 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property.

Fire Weather Watch issued November 4 at 9:54AM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR GUSTY SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN FERNANDO VALLEY, SANTA CLARITA VALLEY, VENTURA COUNTY VALLEYS, CALABASAS, AND MALIBU COAST... * WINDS...North to northeast 15 to 30 mph with gusts 40 to 50 mph this morning., gradually decreasing this afternoon into evening. Strongest winds near higher terrain, as well as the Highway 118 corridor in western San Fernando Valley and Simi Valley, and the Malibu coast. Offshore winds will diminish some tonight into Tuesday, then increase to 25 to 40 mph with potential for gusts of 45 to 60 mph on Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

Fire Weather Watch issued November 4 at 9:54AM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. * WINDS...Northeast 20 to 35 mph with gusts to 50 mph. For the San Gabriel Valley, the strongest winds will be focused in the foothills. * 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. 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.

Fire Weather Watch issued November 4 at 9:54AM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA MONICA AND SANTA SUSANA MOUNTAINS... * WINDS...North to northeast 20 to 35 mph with gusts 40 to 50 mph, except isolated gusts to 60 mph western peaks, gradually diminishing in the afternoon. Offshore winds will diminish more tonight into Tuesday, then increase to 30 to 45 mph with potential for widespread damaging gusts of 60 to 70 mph Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

Fire Weather Watch issued November 4 at 9:54AM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. * WINDS...Northeast winds 25 to 40 mph with potential for widespread damaging gusts up to 60 to 70 mph on Wednesday. * 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. 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.

Fire Weather Watch issued November 4 at 9:54AM PST until November 7 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH IN EFFECT TUESDAY NIGHT FOR MOUNTAINS/FOOTHILLS OF SAN LUIS OBISPO/SANTA BARBARA COUNTIES... ...FIRE WEATHER WATCH IN EFFECT LATE TUESDAY NIGHT THROUGH THURSDAY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES DUE TO POTENTIAL FOR STRONG SANTA ANA WINDS WITH LOW HUMIDITIES... .For today, Santa Ana winds are peaking this morning, and will gradually diminish through the afternoon and evening hours. Peak gusts are generally in the 30 to 50 mph range across typical wind prone area of Los Angeles and Ventura counties (including the Malibu coast), except the Los Angeles county mountains where gusts of 50 to 70 mph are being observed. Humidity levels between 15 and 25 percent are common this morning, and will fall to between 10 and 20 percent across much of the wind prone areas today. 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 wind prone areas of Los Angeles and Ventura counties Wednesday into Thursday. Fire Weather Watches will likely be converted to Red Flag Warnings later today. This appears to be a high end Red Flag Warning event with the combination of strong upper level wind support, tightening pressure gradients (LAX-Daggett peaking at around - 7 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 becoming likely in the mountains and foothills of Los Angeles and Ventura counties (including the Santa Monicas and Santa Susanas), and widespread gusts of 45 to 60 mph across coastal/valley areas (including the Malibu coast and Ventura county coastal plain). 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, where a Fire Weather Watch remains in effect and will likely be converted to Red Flag Warnings later today. Also of note, elevated to brief critical fire weather conditions are likely for southern Santa Barbara county during this time, and Red Flag Warnings may need to be considered for these areas as well. ...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 this morning, gradually diminishing in the afternoon. Isolated gusts 60 to 70 mph across the San Gabriels. Offshore winds will diminish some on tonight into Tuesday, then increase to 30 to 50 mph with potential for widespread damaging gusts of 60 to 80 mph on Wednesday. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent today. 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.

High Surf Advisory issued November 4 at 9:53AM PST until November 4 at 10:00AM PST by NWS Eureka CA

Breaker heights will decrease below advisory level (14 to 16 feet at 16 seconds) by late this morning. However, due to diminishing winds and persistent energy from this long period swell, a moderate sneaker wave risk will go into effect for Z450 (northern Humboldt and Del Norte coasts) until late this evening.

High Surf Advisory issued November 4 at 9:53AM PST until November 4 at 10:00AM PST by NWS Eureka CA

* WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Through this evening. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath.

Beach Hazards Statement issued November 4 at 9:53AM PST until November 4 at 10:00PM PST by NWS Eureka CA

* WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Through this evening. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath.

Red Flag Warning issued November 4 at 9:22AM 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.

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.

Wind Advisory issued November 4 at 5:42AM PST until November 4 at 2:00PM PST by NWS Phoenix AZ

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

Beach Hazards Statement issued November 4 at 4:26AM PST until November 4 at 7:00PM PST by NWS San Francisco CA

* WHAT...Long period northwest swell will result in an energetic surf zone resulting in an increasing risk of sneaker waves and increasing rip currents, then transitioning to a larger surf with strong rip currents, long beach run-up and large shore break on steeper beaches. Breaking waves of 10 to 14 feet are expected. * WHERE...Southern Monterey Bay and Big Sur Coast County. * WHEN...Through Monday evening. * IMPACTS...Large waves can sweep across the beach without warning, pulling people into the sea from rocks, jetties, and beaches. Sudden immersion in cold water can result in cold water shock even for the most experienced swimmers. Cold water shock can result in dramatic changes in breathing, heart rate and blood pressure, greatly increasing the risk of drowning in rough open waters.

Beach Hazards Statement issued November 4 at 4:26AM PST until November 4 at 7:00PM PST by NWS San Francisco CA

* WHAT...Long period northwest swell will result in an energetic surf zone resulting in an increasing risk of sneaker waves and increasing rip currents, then transitioning to a larger surf with strong rip currents, long beach run-up and large shore break on steeper beaches. Breaking waves of 10 to 14 feet are expected. * WHERE...San Francisco, Coastal North Bay Including Point Reyes National Seashore and San Francisco Peninsula Coast Counties. * WHEN...Through Monday evening. * IMPACTS...Large waves can sweep across the beach without warning, pulling people into the sea from rocks, jetties, and beaches. Sudden immersion in cold water can result in cold water shock even for the most experienced swimmers. Cold water shock can result in dramatic changes in breathing, heart rate and blood pressure, greatly increasing the risk of drowning in rough open waters.

Red Flag Warning issued November 4 at 3:28AM PST until November 4 at 6:00PM PST by NWS San Diego CA

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN BERNARDINO COUNTY MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA ANA MOUNTAINS AND INLAND ORANGE COUNTY... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... * WINDS...Northeast 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...10 to 15 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.

Fire Weather Watch issued November 4 at 3:28AM PST until November 7 at 6:00PM PST by NWS San Diego CA

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN BERNARDINO COUNTY MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA ANA MOUNTAINS AND INLAND ORANGE COUNTY... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... * WINDS...Northeast 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...10 to 15 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.

Fire Weather Watch issued November 4 at 3:28AM PST until November 7 at 6:00PM PST by NWS San Diego CA

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE SAN BERNARDINO COUNTY MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO MOUNTAINS AND INLAND EMPIRE... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA ANA MOUNTAINS AND INLAND ORANGE COUNTY... * WINDS...Northeast 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...10 to 15 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.

Wind Advisory issued November 4 at 2:29AM PST until November 4 at 4:00PM PST by NWS San Diego CA

* WHAT...North winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Orange County Coastal Areas. * WHEN...Until 4 PM PST this afternoon. * 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 2:29AM PST until November 4 at 4:00PM PST by NWS San Diego CA

* WHAT...North winds 20 to 30 mph with gusts up to 45 mph. * WHERE...San Bernardino County Mountains and San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 4 PM PST this afternoon. * 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 2:29AM PST until November 4 at 4:00PM PST by NWS San Diego CA

* WHAT...North winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Orange County Inland Areas and Santa Ana Mountains and Foothills. * WHEN...Until 4 PM PST this afternoon. * 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 3 at 11:47PM PST until November 4 at 4:00PM PST by NWS Las Vegas NV

* WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Lake Mead National Recreation Area, Lake Havasu and Fort Mohave, and San Bernardino County-Upper Colorado River Valley. * WHEN...Until 4 PM PST /5 PM MST/ Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Crosswinds may create difficult driving conditions on Interstate 40.

Air Quality Alert issued November 3 at 9:01PM PST by NWS San Diego CA

* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of particle pollution from windblown dust. * WHERE...in the Inland Empire and Coachella Valley. Levels of particle pollution can vary by time and location depending on emissions and local weather conditions. * WHEN...until 6PM on Monday. * IMPACTS... Particle pollution can get deep into the lungs and cause serious health problems such as asthma attacks, heart and lung disease symptoms, and increased risk of lung infections. Everyone can be affected, but sensitive groups such as 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.

Wind Advisory issued November 3 at 6:06PM PST until November 4 at 12:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Northeast winds 15 to 30 mph with gusts up of 45 to 55 mph expected. * WHERE...A portion of southwest California. * WHEN...Until noon PST Monday. * 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 3 at 6:06PM PST until November 4 at 12:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...North winds shifting to the northeast, at 15 to 30 mph with gusts of 45 to 55 mph. * WHERE...Interstate 5 Corridor, Northern Ventura County Mountains, and Southern Ventura County Mountains. * WHEN...Until noon PST Monday. * 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 3 at 6:06PM PST until November 4 at 12:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Northeast winds 20 to 40 mph with gusts of 60 to 80 mph expected. * WHERE...Eastern San Gabriel Mountains and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until noon PST Monday. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles.