* WHAT...Dangerously hot conditions with temperatures between 96 and 104 expected. * WHERE...A portion of southwest California. * WHEN...Until 8 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. * ADDITIONAL DETAILS...Warm overnight low temperatures will contribute to the heat risk, especially in the mountain and foothill locations.
Get the latest Paddle Report, Streamflow Levels, and Weather Forecast for Cooper Canyon- Near State Highway 2 (Sw 1/4, Ne 1/4, Sec 16, T3n, R10w To Confluence With Little Rock Creek in California. California Streamflow Levels and Weather Forecast
Wind
Humidity
| Last Updated | 2026-03-18 |
| River Levels | 54 cfs (1.85 ft) |
| Percent of Normal | 113% |
| Status | |
| Class Level | None |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 10263500 |
| Location | Reservations | Toilets |
|---|---|---|
Cooper Canyon Trail Camp
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Devils Cyn
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Bandido Group Campground
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Horse Flats
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Horse Flat Campground
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Chilao Campground
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Cooper Canyon- Near State Highway 2 (Sw 1/4, Ne 1/4, Sec 16, T3N, R10W To Confluence With Little Rock Creek
Mainstream - Confluence With Cooper Canyon To Confluence Wit South Fork Little Rock Creek
Mainstream - Headwaters To Confluence With Cooper Canyon
Mainstream - Confluence With South Fork Little Rock Creek To Little Rock Creek Reservoir
North Fork - Confluence Of Soldier And Coldbrook Creeks (Se1/4,Sw1/4, Sec) 5, T2N,,R9W To Conflluence With West Fork Of San Gabriel (Sw 1/4,Sw1/4, Sec 17, T2N, R8W)
Gaging Station Below Spillway Of Cogswell Dam (Ne 1/4, Se 1/4, Sec 19, T2N, R10W) To Confluence With Nf San Gabriel River (Sw 1/4.Sw 1/4, Sec 15, T2N, R9W)