| ||||||||||||||||||
| CALAVERAS RIVER - NEW HOGAN RESERVOIR (NHGC1) | ||||||||||||||||||
| Latitude: 38.16º N | Longitude: 120.81º W | Elevation: 554 Feet | ||||||||||||||||
| Location: Calaveras County in CA | ||||||||||||||||||
| River Group: San Joaquin | ||||||||||||||||||
| Issuance Time: | Jan 10 2026 at 11:08 AM PST |
| 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: Jan 10 2026 at 11:15 AM PST | ||||||
| Prob | Jan* | Feb | Mar | Apr | May | Jun |
| 10% | 76.0 | 123.9 | 122.1 | 42.9 | 21.7 | 7.7 |
| 25% | 51.6 | 61.4 | 73.6 | 26.3 | 10.4 | 5.8 |
| 50% | 38.8 | 36.9 | 38.3 | 15.1 | 8.0 | 3.9 |
| 75% | 38.5 | 14.6 | 22.0 | 9.1 | 5.6 | 2.7 |
| 90% | 38.4 | 6.1 | 7.3 | 6.0 | 4.0 | 1.6 |
| Mean | 37.2 | 39.7 | 41.3 | 18.4 | 6.6 | 2.3 |
| %Mean | 104.3 | 92.9 | 92.7 | 82.1 | 121.2 | 169.6 |
| Prob | Jul | Aug | Sep | Oct | Nov | Dec |
| 10% | 4.1 | 2.7 | 2.4 | 3.5 | 7.9 | 62.7 |
| 25% | 3.3 | 2.1 | 1.7 | 2.7 | 4.2 | 24.8 |
| 50% | 2.0 | 0.9 | 0.8 | 1.7 | 2.7 | 6.7 |
| 75% | 0.7 | 0.0 | 0.2 | 0.8 | 1.9 | 2.9 |
| 90% | 0.0 | 0.0 | 0.0 | 0.1 | 1.4 | 2.1 |
| Mean | 1.1 | 0.6 | 0.7 | 0.9 | 4.2 | 16.9 |
| %Mean | 181.8 | 150.0 | 114.3 | 188.9 | 64.3 | 39.6 |
| 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. Lows 36 to 42. Light winds. Sunday: Partly cloudy in the morning then clearing. Highs 53 to 61. Light winds. Sunday Night: Mostly clear. Lows 36 to 44. Light winds. Monday: Sunny. Highs 53 to 63. Light winds. Monday Night: Clear. Lows 38 to 46. Light winds. Tuesday: Sunny. Highs 56 to 68. Tuesday Night: Mostly clear. Lows 40 to 48. Wednesday through Saturday: Clear. Highs 57 to 71. Lows 40 to 50. |