| ||||||||||||||||||
| 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 06 2025 at 7:43 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 06 2025 at 7:48 AM PDT | ||||||
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 120.0 | 25.1 | 9.9 | 18.3 | 95.2 | 207.4 |
| 25% | 113.3 | 21.4 | 8.9 | 13.8 | 27.9 | 97.0 |
| 50% | 109.2 | 20.3 | 7.9 | 10.9 | 18.4 | 37.8 |
| 75% | 106.8 | 19.5 | 7.5 | 9.9 | 15.0 | 21.9 |
| 90% | 104.9 | 19.3 | 7.3 | 9.6 | 12.2 | 19.0 |
| Mean | 229.2 | 58.2 | 11.5 | 13.5 | 31.7 | 90.1 |
| %Mean | 47.6 | 34.9 | 68.7 | 80.7 | 58.0 | 42.0 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 852.0 | 909.1 | 824.0 | 928.6 | 697.3 | 874.3 |
| 25% | 304.0 | 416.5 | 488.5 | 600.4 | 549.0 | 661.2 |
| 50% | 111.3 | 185.8 | 221.2 | 383.0 | 391.9 | 394.8 |
| 75% | 42.7 | 71.2 | 103.1 | 255.0 | 326.3 | 240.2 |
| 90% | 24.3 | 42.2 | 75.2 | 150.1 | 234.8 | 148.9 |
| Mean | 238.7 | 328.5 | 372.2 | 464.6 | 449.2 | 438.3 |
| %Mean | 46.6 | 56.6 | 59.4 | 82.4 | 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 88 to 96. South winds up to 10 mph with gusts to around 20 mph. Tonight: Clear. Lows 55 to 64. South winds up to 10 mph with gusts to around 20 mph. Saturday: Sunny. Highs 89 to 99. Southwest winds up to 10 mph. Gusts up to 25 mph in the afternoon. Saturday Night: Mostly clear. Lows 54 to 64. Southwest winds 10 to 15 mph with gusts to around 25 mph. Sunday: Mostly sunny. Highs 87 to 97. South winds up to 10 mph with gusts to around 20 mph. Sunday Night: Mostly clear. Lows 55 to 65. Monday: Sunny. Highs 90 to 98. Monday Night through Thursday: Clear. Lows 53 to 63. Highs 87 to 97. |