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| AMERICAN RIVER - FOLSOM LAKE (FOLC1) | ||||||||||||||||||
| Latitude: 38.71º N | Longitude: 121.16º W | Elevation: 350 Feet | ||||||||||||||||
| Location: Sacramento County in CA | ||||||||||||||||||
| River Group: Lower Sacramento | ||||||||||||||||||
| Issuance Time: | Jun 16 2025 at 6:25 AM PDT |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. Flow data on this product are unregulated / full natural flow. |
| Monthly Probability Plot |
| Monthly Streamflow Volume (1000s of Acre-Feet) Data Updated: Jun 16 2025 at 6:31 AM PDT | ||||||
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 106.1 | 21.7 | 9.8 | 18.3 | 95.5 | 207.6 |
| 25% | 105.8 | 20.4 | 8.4 | 13.5 | 27.7 | 97.1 |
| 50% | 105.7 | 19.9 | 7.7 | 10.6 | 18.4 | 37.6 |
| 75% | 105.7 | 19.7 | 7.4 | 9.9 | 15.1 | 21.9 |
| 90% | 105.7 | 19.7 | 7.3 | 9.6 | 12.2 | 18.8 |
| Mean | 229.2 | 58.2 | 11.5 | 13.5 | 31.7 | 90.1 |
| %Mean | 46.1 | 34.2 | 67.0 | 78.5 | 58.0 | 41.7 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 851.9 | 908.7 | 824.2 | 928.6 | 697.3 | 874.3 |
| 25% | 304.1 | 416.5 | 488.4 | 600.5 | 549.1 | 661.2 |
| 50% | 111.5 | 185.7 | 220.0 | 381.7 | 391.9 | 394.8 |
| 75% | 42.7 | 71.2 | 103.1 | 255.4 | 326.4 | 240.2 |
| 90% | 24.3 | 42.1 | 75.2 | 150.2 | 235.1 | 148.8 |
| Mean | 238.7 | 328.5 | 372.2 | 464.6 | 449.2 | 438.3 |
| %Mean | 46.7 | 56.5 | 59.1 | 82.2 | 87.2 | 90.1 |
| Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %) | ||||||
| Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast. | ||||||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ017) |
| Today: Sunny. Highs 76 to 84. Southwest winds up to 15 mph. Gusts up to 25 mph in the afternoon. Tonight: Clear. Lows 48 to 54. West winds 10 to 15 mph with gusts to around 35 mph. Saturday: Sunny. Highs 77 to 83. Northwest winds 10 to 20 mph with gusts to around 30 mph. Saturday Night: Clear. Lows 53 to 61. Northwest winds 10 to 15 mph with gusts to around 30 mph. Sunday: Sunny. Highs 83 to 89. Northwest winds 10 to 15 mph with gusts to around 30 mph. Sunday Night: Clear. Lows 53 to 61. Monday: Sunny. Highs 89 to 95. Monday Night: Clear. Lows 54 to 62. Tuesday: Mostly sunny. Highs 86 to 94. Tuesday Night through Thursday: Clear. Lows 53 to 63. Highs 87 to 97. |