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| BEAR RIVER - ROLLINS LAKE (ROLC1) | ||||||||||||||||||
| Latitude: 39.14º N | Longitude: 120.95º W | Elevation: 2176 Feet | ||||||||||||||||
| Location: Nevada County in CA | ||||||||||||||||||
| River Group: Lower Sacramento | ||||||||||||||||||
| Issuance Time: | May 12 2025 at 7:46 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: May 12 2025 at 7:50 AM PDT | ||||||
| Prob | May* | Jun | Jul | Aug | Sep | Oct |
| 10% | 9.3 | 6.1 | 3.6 | 2.7 | 2.7 | 5.7 |
| 25% | 8.8 | 5.8 | 3.5 | 2.5 | 2.5 | 3.8 |
| 50% | 8.6 | 5.6 | 3.4 | 2.5 | 2.3 | 3.2 |
| 75% | 8.4 | 5.5 | 3.4 | 2.5 | 2.3 | 3.0 |
| 90% | 8.3 | 5.4 | 3.4 | 2.4 | 2.3 | 2.8 |
| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Prob | Nov | Dec | Jan | Feb | Mar | Apr |
| 10% | 16.1 | 89.5 | 98.0 | 91.8 | 92.6 | 52.2 |
| 25% | 9.7 | 37.5 | 46.3 | 49.8 | 52.0 | 36.8 |
| 50% | 5.0 | 15.4 | 25.0 | 21.8 | 32.7 | 19.2 |
| 75% | 3.9 | 5.9 | 9.0 | 16.5 | 21.4 | 12.2 |
| 90% | 3.5 | 3.7 | 6.0 | 7.8 | 12.3 | 9.2 |
| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| 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 (CAZ067) |
| Tonight: Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening. A slight chance of rain showers late in the night. Lows 39 to 47. Prevailing southwest winds up to 10 mph. Tuesday: Mostly cloudy with a slight chance of rain showers in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Warmer. Highs 54 to 64 higher elevations and 61 to 69 lower elevations. Prevailing west winds up to 10 mph. Tuesday Night: Clear. Lows 41 to 49. Prevailing northwest winds up to 10 mph in the evening becoming light. Wednesday: Sunny, warmer. Highs 64 to 76. Light winds becoming west up to 10 mph in the afternoon. Wednesday Night: Clear. Lows 46 to 52. Prevailing northwest winds up to 10 mph in the evening becoming light. Thursday: Sunny, warmer. Highs 70 to 82. Thursday Night: Partly cloudy. Lows 52 to 58. Friday and Friday Night: Partly cloudy. Highs 72 to 84. Lows 50 to 58. Saturday through Sunday: Mostly clear. Highs 65 to 79. Lows 45 to 56. Sunday Night and Monday: Clear. Lows 48 to 54. Highs 68 to 83. |