Castaic reservoir
Castaic
Castaic is a small town located in Los Angeles County, California, with a population of around 22,000. The area has a rich history dating back to the indigenous Tataviam people who lived off the land's natural resources. Castaic has a semi-arid climate, and its hydrology is primarily dependent on the nearby Castaic Lake and the Santa Clara River. The lake serves as a vital source of water for Los Angeles County and the surrounding areas. The snowpack from the nearby San Gabriel Mountains also contributes to the region's water supply. Agriculture is a significant industry in Castaic, with crops such as almonds, citrus fruits, and grapes being grown. The town is also a popular destination for recreation, offering activities such as fishing, camping, boating, and hiking in the nearby Angeles National Forest.
Daily levels at Castaic
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Storage
acre-ft · code 2
Pool Elevation
ft · code 1
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Castaic -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Piru Creek Above Lake Piru Ca | 53 cfs | → |
| Piru Creek Below Santa Felicia Dam Ca | 199 cfs | → |
| Santa Clara R Nr Piru Ca | 210 cfs | → |
| Piru C Ab Frenchmans Flat Ca | 16 cfs | → |
| Sespe C Nr Fillmore | 44 cfs | → |
| Big Tujunga C Bl Hansen Dam Ca | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Castaic.
⚓ Boat launches
- Lake Hughes Road Castaic
- Piru Canyon Road 4780, Castaic
- Interstate 5, Lebec
- Vacquero Boating And Picnic Site
- Vista Del Lago Road 21, Lebec
- Pyramid Lake Road, Lebec
⛺ Campgrounds
- Castaic Lake
- Cienaga Campground
- Lake Piru State Rec Area
- Streamside
- Group Campground 1
- Group Campground 2
🛶 Paddle runs
- Site Of St Francis Dam Disaster To Seco Canyon At The Nf Boundary
- Lower Piru Creek (Oulet At Pyramid Reservoir) To Piru Reservoir
- Green Valley At The Nf Boundary To Site Of St Francis Dam Disaster
- Castaic To Pyramid Reservoir
- Confluence With Gold Hill Creek To Castaic
- Wilderness Boundary To Confluence With Gold Hill Creek
🛡 More reservoirs
More reservoirs →Track Castaic in the Snoflo app
Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").
About Castaic
Where does the data for Castaic come from?
Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.
What does the Hazard hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Castaic.