Lake Forest, CA 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 Lake Forest.

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

High Surf Advisory issued November 2 at 2:26PM PDT until November 6 at 4:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...Large breaking waves of 8 to 15 feet with dangerous rip currents focused across west and northwest facing beaches. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...From 4 PM Sunday to 4 PM PDT 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.

Red Flag Warning issued November 2 at 2:15PM PDT until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT SUNDAY EVENING THROUGH MONDAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... .A weakening cold front has brought minimal rainfall today. Any rainfall accumulation that does fall is expected to be less than 0.10 inches for areas south of Point Conception. Behind this system, there will be strengthening northwest winds tonight, with damaging gusts over 60 mph across the mountains, followed by northerly winds on Sunday. Initially, humidity levels will remain quite elevated tonight, but will start to dry out on Sunday, with elevated fire weather conditions to southern Santa Barbara county and the highway 33 corridor in western Ventura county by Sunday afternoon and evening. By Sunday night 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. If this Wednesday-Thursday Santa Ana event remains on track, a Fire Weather Watch will likely be issued by Sunday. The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 7 PM Sunday to 6 PM PDT Monday. The Fire Weather Watch is no longer in effect. * WINDS...North to northeast 15 to 30 mph with gusts 40 to 50 mph. Strongest winds near higher terrain, as well as the Highway 118 corridor in western San Fernando Valley and near Simi Valley. * RELATIVE HUMIDITY...20 to 30 percent will be common Sunday evening, falling to between 15 and 25 percent Later Sunday night and Monday across downslope areas. Isolated readings 10 to 15 percent possible in favored downslope areas on Monday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property. * ADDITIONAL DETAILS...Another 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.

Red Flag Warning issued November 2 at 2:15PM PDT until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT SUNDAY EVENING THROUGH MONDAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... .A weakening cold front has brought minimal rainfall today. Any rainfall accumulation that does fall is expected to be less than 0.10 inches for areas south of Point Conception. Behind this system, there will be strengthening northwest winds tonight, with damaging gusts over 60 mph across the mountains, followed by northerly winds on Sunday. Initially, humidity levels will remain quite elevated tonight, but will start to dry out on Sunday, with elevated fire weather conditions to southern Santa Barbara county and the highway 33 corridor in western Ventura county by Sunday afternoon and evening. By Sunday night 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. If this Wednesday-Thursday Santa Ana event remains on track, a Fire Weather Watch will likely be issued by Sunday. The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning for gusty Santa Ana winds and low relative humidity, which is in effect from 7 PM Sunday to 6 PM PDT Monday. The Fire Weather Watch is no longer in effect. * WINDS...NORTHEAST 25 TO 40 MPH WITH DAMAGING GUSTS UP TO 60 MPH. ISOLATED GUSTS 60 TO 80 MPH POSSIBLE IN THE SAN GABRIELS. * RELATIVE HUMIDITY... 20 to 30 PERCENT WILL BE COMMON SUNDAY EVENING, FALLING TO BETWEEN 15 AND 25 PERCENT LATER SUNDAY NIGHT AND MONDAY ACROSS DOWNSLOPE AREAS.Y. ISOLATED READINGS 10 TO 15 PERCENT POSSIBLE ON MONDAY IN FAVORED DOWNSLOPE AREAS. * IMPACTS...IF FIRE IGNITION OCCURS, CONDITIONS ARE FAVORABLE FOR RAPID FIRE SPREAD AND EXTREME FIRE BEHAVIOR WHICH WOULD THREATEN LIFE AND PROPERTY. * ADDITIONAL DETAILS...ANOTHER 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.

Red Flag Warning issued November 2 at 2:15PM PDT until November 4 at 6:00PM PST by NWS Los Angeles/Oxnard CA

...RED FLAG WARNING IN EFFECT SUNDAY EVENING THROUGH MONDAY ACROSS PORTIONS OF LOS ANGELES AND VENTURA COUNTIES DUE TO GUSTY SANTA ANA WINDS AND LOW HUMIDITIES... .A weakening cold front has brought minimal rainfall today. Any rainfall accumulation that does fall is expected to be less than 0.10 inches for areas south of Point Conception. Behind this system, there will be strengthening northwest winds tonight, with damaging gusts over 60 mph across the mountains, followed by northerly winds on Sunday. Initially, humidity levels will remain quite elevated tonight, but will start to dry out on Sunday, with elevated fire weather conditions to southern Santa Barbara county and the highway 33 corridor in western Ventura county by Sunday afternoon and evening. By Sunday night 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. If this Wednesday-Thursday Santa Ana event remains on track, a Fire Weather Watch will likely be issued by Sunday. The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning for gusty Santa Ana winds and low relative humidity, which is in effect from 7 PM Sunday to 6 PM PDT Monday. * WINDS...North to northeast 15 to 30 mph with gusts 40 to 50 mph. Strongest winds across higher terrain and the Malibu coast. * RELATIVE HUMIDITY...20 to 30 percent will be common Sunday evening, falling to between 15 and 25 percent Later Sunday night and Monday across downslope areas. Isolated readings 10 to 15 percent possible in favored downslope areas on Monday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior which would threaten life and property. * ADDITIONAL DETAILS...Another 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.

Wind Advisory issued November 2 at 1:46PM PDT until November 4 at 10:00AM 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, Northern San Joaquin Valley, and Southern Sacramento Valley. * WHEN...From 7 AM Sunday to 10 AM PST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winter Weather Advisory issued November 2 at 1:39PM PDT until November 2 at 11:00PM PDT by NWS Hanford CA

* WHAT...Snow expected above 6,000 feet. Total snow accumulations up to 3-6 inches expected, with 8 inches possible at the highest elevations. At Tioga Pass, there is a 39 percent chance of two or more inches of snow. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions.

Wind Advisory issued November 2 at 1:18PM PDT until November 3 at 4:00AM PST by NWS San Diego CA

* WHAT...West winds 20 to 30 mph. Wind gusts 35 to 50 mph, highest across mountain passes. * WHERE...San Diego County Deserts and San Diego County Mountains. * WHEN...Until 4 AM PST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects; winds may cause small tree limb damage.

Wind Advisory issued November 2 at 1:18PM PDT until November 4 at 4:00PM PST by NWS San Diego CA

* WHAT...North to northeast winds 20 to 30 mph with gusts 35 to 45 mph expected. Local gusts up to 55 mph through wind prone passes and canyons in the Santa Ana mountains. * WHERE...Orange County Inland Areas and Santa Ana Mountains and Foothills. * WHEN...From 7 PM Sunday to 4 PM PST Monday. * IMPACTS...In areas of gusty winds, any fires that develop have the potential to spread rapidly. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Daytime relative humidity values of 15 to 20 percent (lowest in the Santa Ana mountains) combined with gusty north to northeasterly winds will create elevated fire weather conditions.

Red Flag Warning issued November 2 at 1:12PM PDT until November 4 at 6:00PM PST by NWS San Diego CA

GUSTY NORTH TO NORTHEAST WINDS AND RELATIVE HUMIDITY NEAR 15 PERCENT WILL LEAD TO PERIODS OF CRITICAL FIRE WEATHER CONDITIONS SUNDAY NIGHT INTO LATE MONDAY AFTERNOON FOR PORTIONS OF THE COASTAL SLOPES OF THE SAN BERNARDINO COUNTY MOUNTAINS AND PORTIONS OF THE INLAND EMPIRE, MAINLY BELOW THE CAJON PASS. The National Weather Service in San Diego has issued a Red Flag Warning for strong gusty winds and low relative humidity, which is in effect from 7 PM Sunday to 6 PM PDT Monday. The Fire Weather Watch is no longer in effect. * WINDS...North to northeast 15 to 25 mph with gusts 35 to 45 mph, locally up to 55 mph near the Cajon Pass. * RELATIVE HUMIDITY...As low as 12 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. * ADDITIONAL DETAILS...Another round of potentially more widespread and stronger Santa Ana winds could bring periods of critical fire weather conditions Wednesday and Thursday.

High Wind Warning issued November 2 at 12:44PM PDT until November 3 at 6:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...For the High Wind Warning, north winds 20 to 40 mph with gusts of 60 to 80 mph expected. For the Wind Advisory, northeast winds 15 to 30 mph with gusts of 45 to 55 mph expected. * WHERE...Interstate 5 Corridor, Northern Ventura County Mountains, and Southern Ventura County Mountains. * WHEN...For the High Wind Warning, from 7 PM PDT this evening to 6 PM PST Sunday. For the Wind Advisory, from 6 PM Sunday to 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. 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 2 at 12:44PM PDT until November 3 at 6:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...North winds 20 to 40 mph with gusts of 60 to 80 mph expected. * WHERE...Santa Barbara County Interior Mountains and Santa Ynez Mountains Eastern Range. * WHEN...From 7 PM PDT this evening to 6 PM PST Sunday. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles.

Freeze Watch issued November 2 at 12:44PM PDT until November 4 at 8:00AM PST by NWS Los Angeles/Oxnard CA

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Antelope Valley, San Luis Obispo County Interior Valleys, and Southern Salinas Valley. * WHEN...From late Sunday night through Monday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Wind Advisory issued November 2 at 12:44PM PDT until November 4 at 12:00PM PST by NWS Los Angeles/Oxnard CA

* WHAT...For the High Wind Warning, north winds 20 to 40 mph with gusts of 60 to 80 mph expected. For the Wind Advisory, northeast winds 15 to 30 mph with gusts of 45 to 55 mph expected. * WHERE...Interstate 5 Corridor, Northern Ventura County Mountains, and Southern Ventura County Mountains. * WHEN...For the High Wind Warning, from 7 PM PDT this evening to 6 PM PST Sunday. For the Wind Advisory, from 6 PM Sunday to 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. 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 2 at 12:44PM PDT 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...From 6 PM Sunday to 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.

Wind Advisory issued November 2 at 12:44PM PDT 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...From 6 PM Sunday to 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 2 at 12:35PM PDT until November 4 at 4:00AM PST by NWS Las Vegas NV

* WHAT...North winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...In California, Cadiz Basin, Eastern Mojave Desert, and Morongo Basin. In Nevada, Lincoln County, Las Vegas Valley, Northeast Clark County, Sheep Range, Southern Clark County, and Spring Mountains-Red Rock Canyon. * WHEN...From 10 AM Sunday to 4 AM PST 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 15 and Interstate 40.

Wind Advisory issued November 2 at 12:35PM PDT until November 4 at 4:00AM PST by NWS Las Vegas NV

* WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...White and Inyo Mountains, Eastern Sierra Slopes, Owens Valley, Death Valley National Park, Esmeralda and Central Nye County, and Western Clark and Southern Nye County. * WHEN...From 4 AM Sunday to 4 AM 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 2 at 12:35PM PDT 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...From 1 PM PST /2 PM MST/ Sunday to 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.

High Wind Warning issued November 2 at 12:19PM PDT until November 3 at 10:00AM PST by NWS Hanford CA

* WHAT...Northwest winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Mojave Desert Slopes. * WHEN...From 8 PM PDT this evening to 10 AM PST Sunday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...This warning ends at 10 AM PST due to the end of Daylight Saving Time. The strongest wind will be from the intersection of Highway 58 and 14 and moving southwest along the slopes.

Wind Advisory issued November 2 at 12:16PM PDT until November 3 at 5:00AM PST by NWS Phoenix AZ

* WHAT...West winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 5 PM PDT this afternoon to 5 AM PST Sunday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

Wind Advisory issued November 2 at 12:16PM PDT until November 4 at 6:00AM PST by NWS Phoenix AZ

* WHAT...Northwest winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Western portion of Joshua Tree National Park, and Eastern portion of Joshua Tree National Park. * WHEN...From 10 PM Sunday to 6 AM PST Monday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

Wind Advisory issued November 2 at 12:16PM PDT until November 4 at 2:00PM PST 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 Valley and Palo Verde Valley. * WHEN...From 11 PM MST /10 PM PST/ Sunday to 3 PM MST /2 PM PST/ Monday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

Beach Hazards Statement issued November 2 at 4:55AM PDT 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...From Sunday afternoon 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 2 at 4:55AM PDT 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...From Sunday afternoon 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.