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

Extreme Heat Warning issued August 19 at 2:10PM PDT until August 23 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

Effective: Tue August 19, 2025, 2:10 PM
Expires: Wed August 20, 2025, 5:00 AM

* WHAT...Dangerously hot conditions with temperatures of 95 to 110 degrees expected. * WHERE...A portion of southwest California. * WHEN...From 11 AM Thursday to 9 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. Monitor the latest forecasts and warnings for updates.

Extreme Heat Warning issued August 19 at 2:10PM PDT until August 22 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

Effective: Tue August 19, 2025, 2:10 PM
Expires: Wed August 20, 2025, 5:00 AM

* WHAT...Dangerously hot conditions with temperatures of 95 to 105 degrees expected. * WHERE...Eastern Santa Monica Mountains Recreational Area, Los Angeles County Inland Coast including Downtown Los Angeles, and Santa Ynez Mountains Eastern Range. * WHEN...From 11 AM Thursday to 9 PM PDT Friday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. Monitor the latest forecasts and warnings for updates.

Heat Advisory issued August 19 at 2:10PM PDT until August 22 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

Effective: Tue August 19, 2025, 2:10 PM
Expires: Wed August 20, 2025, 5:00 AM

* WHAT...Temperatures of 90 to 105 degrees expected. * WHERE...Central Ventura County Valleys, Lake Casitas, Ojai Valley, Palos Verdes Hills, San Luis Obispo County Inland Central Coast, and Santa Barbara County Inland Central Coast. * WHEN...From 11 AM Thursday to 9 PM PDT Friday. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates.

Red Flag Warning issued August 19 at 1:27PM PDT until August 23 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

Effective: Tue August 19, 2025, 1:27 PM
Expires: Sat August 23, 2025, 9:00 PM

...RED FLAG WARNING IN EFFECT FROM 9 AM PDT WEDNESDAY TO 9 PM PDT SATURDAY FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXTREME FIRE BEHAVIOR FROM VERTICAL PLUME GROWTH... LOW RELATIVE HUMIDITY...AND LOCALLY BREEZY WINDS FOR PORTIONS OF THE MOUNTAINS AND FOOTHILLS OF LOS ANGELES AND VENTURA COUNTIES... ...RED FLAG WARNING IN EFFECT FROM 9 AM PDT THURSDAY TO 9 PM PDT SATURDAY FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXTREME FIRE BEHAVIOR FROM VERTICAL PLUME GROWTH...LOW RELATIVE HUMIDITY...AND LOCALLY BREEZY WINDS FOR PORTIONS OF THE MOUNTAINS AND FOOTHILLS OF SANTA BARBARA AND SAN LUIS OBISPO COUNTIES... .A significant heatwave is on the way for late this week into this weekend, bringing dangerous fire-weather conditions. * TEMPERATURES...Unseasonably hot high temperatures, generally 95- 110 degrees and highest Thursday through Saturday, producing unseasonably unstable conditions. * RELATIVE HUMIDITY...Minimum relative humidity 8-20 percent, lowest Wednesday and Thursday. * THUNDERSTORMS...Isolated thunderstorms will be possible Friday through the weekend, and any accompanying lightning strikes will be capable of starting new fires on the peripheries of rain cores. * WINDS...Southwest at 10-20 mph gusting to 20-25 mph over the western Antelope Valley Foothills and vicinity and in other wind- favored areas such as through passes and canyons. Lighter winds elsewhere. Passing outflow boundaries could bring sudden wind- shifts and increased fire-spread rates, even from distant thunderstorms. * IMPACTS...If fire ignition occurs, conditions are favorable for extreme fire behavior and rapid fire growth, which could threaten life and property. Be aware of sudden re-direction of fires in response to passing outflow boundaries. * ADDITIONAL DETAILS...Fire-weather headlines may eventually need to be extended into Sunday.

A Red Flag Warning means that fire-weather conditions are expected to be favorable for the development of extreme fire behavior. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information.

Extreme Heat Warning issued August 19 at 2:10PM PDT until August 23 at 9:00PM PDT by NWS Los Angeles/Oxnard CA

Effective: Tue August 19, 2025, 2:10 PM
Expires: Wed August 20, 2025, 5:00 AM

* WHAT...Dangerously hot conditions with temperatures of 95 to 110 degrees expected. * WHERE...A portion of southwest California. * WHEN...From 11 AM Thursday to 9 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. Monitor the latest forecasts and warnings for updates.