Station Name: LOS ANGELES R A SEPULVEDA DAM CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 679 feet / 207 meters

Nearest Address:
5023 Sepulveda Blvd
Sherman Oaks, CA 91403
Los Angeles County

GPS Coordinates: 34.16167247, -118.466749

Nearby Water Temperatures

Winter Weather Advisory issued November 20 at 12:43PM PST until November 21 at 4:00PM PST by NWS Los Angeles/Oxnard CA

Effective: Thu November 20, 2025, 12:43 PM
Expires: Fri November 21, 2025, 10:00 AM

* WHAT...Moderate snow accumulations expected: For elevations above 6000 feet, 3 to 6 inches. Local accumulations of 8 inches possible. For elevations between 5000 and 6000 feet, 1 to 3 inches possible. East wind gusts of 30 to 45 mph expected on Friday. * WHERE...Eastern San Gabriel Mountains and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 4 PM PST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes. * ADDITIONAL DETAILS...Additional snow is possible Friday Night into Saturday, but accumulations are expected to be light at this point. If more intense snow becomes probable, this advisory may need to be extended.

Slow down and use caution while traveling. Always carry chains. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Flood Watch issued November 20 at 10:23PM PST until November 21 at 7:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Thu November 20, 2025, 10:23 PM
Expires: Fri November 21, 2025, 7:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southwest California, including the following areas, Calabasas and Agoura Hills, Eastern San Fernando Valley, Eastern San Gabriel Mountains, Eastern Santa Monica Mountains Recreational Area, Los Angeles County Beaches, Los Angeles County Inland Coast including Downtown Los Angeles, Los Angeles County San Gabriel Valley, Malibu Coast, Palos Verdes Hills, Santa Clarita Valley, Western San Fernando Valley, Western San Gabriel Mountains and Highway 14 Corridor and Western Santa Monica Mountains Recreational Area. * WHEN...Until 7 AM PST Friday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Rain rates between 0.50 and 0.75 inches per hour are possible overnight tonight with a 10 to 20 percent chance of 1 inch per hour. Showers will be very scattered and not all areas will get heavy rain. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Advisory issued November 20 at 10:21PM PST until November 21 at 3:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Thu November 20, 2025, 10:21 PM
Expires: Fri November 21, 2025, 3:00 AM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following county, Los Angeles. * WHEN...Until 300 AM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 1018 PM PST, Doppler radar indicated moderate to heavy rainfall falling across portions of southern Los Angeles County. Rainfall rates between 0.25 and 0.40 inch per hour have been observed in some location. Urban and small stream flooding is likely. Overflowing poor drainage areas will cause minor flooding in the advisory area. Minor debris flows from the Palisades burn scar are possible. - Some locations that will experience flooding include... Mount Wilson, Pasadena, Burbank, Van Nuys, Glendora, Santa Clarita, Northridge, San Dimas, Pomona, Chatsworth, Woodland Hills, Altadena, Glendale, and the Eaton and Bridge burn scars. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Flood Advisory issued November 20 at 9:02PM PST until November 21 at 3:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Thu November 20, 2025, 9:02 PM
Expires: Fri November 21, 2025, 3:00 AM

* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Southern Los Angeles County. * WHEN...Until 300 AM PST Friday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 858 PM PST, Doppler radar indicated moderate to heavy rainfall falling across portions of southern Los Angeles County. Rainfall rates between 0.25 and 0.40 inch per hour have been observed in some location. Urban and small stream flooding is likely. Overflowing poor drainage areas will cause minor flooding in the advisory area. Minor debris flows from the Palisades burn scar are possible. - Some locations that will experience flooding include... Long Beach, Downtown Los Angeles, Inglewood, Torrance, Alhambra, Culver City, Hermosa Beach, Manhattan Beach, Hollywood, Redondo Beach, Griffith Park, Whittier, Beverly Hills, Universal City, Pasadena, Rancho Palos Verdes, Venice, Santa Monica, and the eastern portion of the Palisades burn scar. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Flash Flood Warning issued November 21 at 3:59AM PST until November 21 at 6:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 3:59 AM
Expires: Fri November 21, 2025, 6:00 AM

FFWLOX The National Weather Service in Los Angeles/Oxnard has extended the * Flash Flood Warning for... South Central Los Angeles County in southwestern California... * Until 600 AM PST. * At 359 AM PST, Additional moderate to heavy showers and thunderstorms continue, producing flooding. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Landslides and mudslides are possible in the warned area. * Some locations that will experience flash flooding include... Beverly Hills, Culver City, Hollywood, Universal City, Venice, Inglewood, Santa Monica, Griffith Park, Downtown Los Angeles, Encino, West Hollywood, Century City, Hancock Park, Hollywood Hills, Studio City, Bel Air, Marina Del Rey, Brentwood and Interstate 405 through the Sepulveda Pass.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Winter Weather Advisory issued November 21 at 3:37AM PST until November 21 at 4:00PM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 3:37 AM
Expires: Fri November 21, 2025, 4:00 PM

* WHAT...Moderate snow accumulations expected: For elevations above 6000 feet, 3 to 6 inches. Local accumulations of 8 inches possible. For elevations between 4000 and 6000 feet, 1 to 3 inches possible. East wind gusts of 30 to 45 mph are likely. * WHERE...Eastern San Gabriel Mountains and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Additional snow is possible into Saturday, but accumulations are expected to be light at this point. If more intense snow becomes probable, this advisory may need to be extended.

Slow down and use caution while traveling. Always carry chains. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Flash Flood Warning issued November 21 at 3:09AM PST until November 21 at 6:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 3:09 AM
Expires: Fri November 21, 2025, 6:00 AM

At 309 AM PST, Doppler radar indicated thunderstorms producing moderate to heavy rain across the northern portion of the warned area. While the showers have decreased in intensity across the southern portion of the warned area, heavier rain may return within the next several hours. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding, along with rock slides and mudslides, caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Rock slides and mudslides. Some locations that may experience flash flooding include... Eastern Malibu, Encino, Van Nuys, Northridge, Woodland Hills, Santa Monica, North Hollywood, Chatsworth, Universal City, Burbank, Griffith Park, Interstate 405 through the Sepulveda Pass, Brentwood, Bel Air, Sherman Oaks, Pacific Palisades, Canoga Park, Topanga State Park and Studio City, as well as the Palisades Burn Scar.

Avoid flooded roads. Be aware of rock slides, and mudslides.

Flood Advisory issued November 21 at 2:49AM PST until November 21 at 6:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 2:49 AM
Expires: Fri November 21, 2025, 6:00 AM

* WHAT...Flooding caused by excessive rainfall is expected, or is currently ongoing. * WHERE...A portion of southwest California, including the following county, Los Angeles. * WHEN...Until 600 AM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. Rockslides and Mudslides are possible. * ADDITIONAL DETAILS... - At 248 AM PST, Doppler radar indicated heavy rain. Overflowing poor drainage areas will cause minor flooding in the advisory area. - Extended till 6AM. - Some locations that will experience flooding include... Acton, Mount Wilson, Pasadena, Burbank, Griffith Park, Universal City, North Hollywood, Van Nuys, West Covina, Glendora, Encino, Santa Clarita, Northridge, San Dimas, Pomona, Chatsworth, Woodland Hills, Altadena, La Canada Flintridge and Glendale. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Flood Advisory issued November 21 at 2:47AM PST until November 21 at 6:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 2:47 AM
Expires: Fri November 21, 2025, 6:00 AM

* WHAT...Urban and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of southwest California, including the following county, Los Angeles. * WHEN...Until 600 AM PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 245 AM PST, Doppler radar indicated heavy rain in and around the area. This will cause urban and small stream flooding. Overflowing poor drainage areas will cause minor flooding in the advisory area. - extended till 6 AM. - Some locations that will experience flooding include... Long Beach, Downtown Los Angeles, Inglewood, Torrance, Alhambra, Culver City, Hermosa Beach, Manhattan Beach, Hollywood, Redondo Beach, Griffith Park, Whittier, Beverly Hills, Universal City, Pasadena, Rancho Palos Verdes, Venice and Santa Monica. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Wind Advisory issued November 21 at 12:56AM PST until November 22 at 10:00AM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 12:56 AM
Expires: Fri November 21, 2025, 10:00 PM

* WHAT...Northeast winds 15 to 25 mph with gusts 35 to 45 mph expected. * WHERE...Calabasas and Agoura Hills, Malibu Coast, Santa Clarita Valley, Santa Susana Mountains, Southeastern Ventura County Valleys, Ventura County Beaches, Ventura County Inland Coast, and Western Santa Monica Mountains Recreational Area. * WHEN...From 10 PM this evening to 10 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Winter Weather Advisory issued November 21 at 9:54AM PST until November 21 at 2:00PM PST by NWS Los Angeles/Oxnard CA

Effective: Fri November 21, 2025, 9:54 AM
Expires: Fri November 21, 2025, 2:00 PM

* WHAT...Wet snow. Additional snow accumulations up to 2 inches. Winds gusting as high as 40 mph. * WHERE...Eastern San Gabriel Mountains and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 2 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Flash Flood Warning issued November 21 at 4:27AM PST until November 21 at 5:30AM PST by NWS San Diego CA

Effective: Fri November 21, 2025, 4:27 AM
Expires: Fri November 21, 2025, 5:30 AM

At 427 AM PST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Irvine, Mission Viejo, Laguna Beach, Laguna Niguel, Rancho Santa Margarita, Aliso Viejo, Laguna Woods, El Toro, Newport Coast and Laguna Hills.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.