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| COSUMNES RIVER - MICHIGAN BAR (MHBC1) | ||||||||||||||||||
| Latitude: 38.50º N | Longitude: 121.04º W | Elevation: 168 Feet | ||||||||||||||||
| Location: Sacramento 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% | 128.1 | 187.6 | 192.0 | 113.2 | 78.8 | 26.4 |
| 25% | 94.0 | 111.9 | 132.2 | 82.2 | 55.7 | 16.3 |
| 50% | 79.6 | 56.9 | 85.1 | 47.4 | 23.9 | 11.7 |
| 75% | 75.1 | 33.7 | 49.5 | 28.7 | 15.3 | 7.8 |
| 90% | 74.7 | 18.5 | 21.9 | 19.8 | 10.5 | 6.5 |
| Mean | 61.4 | 71.7 | 89.1 | 61.9 | 38.4 | 14.0 |
| %Mean | 129.6 | 79.4 | 95.5 | 76.6 | 62.2 | 83.6 |
| Prob | Jul | Aug | Sep | Oct | Nov | Dec |
| 10% | 12.4 | 8.2 | 6.0 | 9.5 | 21.4 | 124.1 |
| 25% | 8.7 | 6.2 | 4.9 | 5.8 | 9.2 | 29.8 |
| 50% | 7.0 | 5.1 | 4.1 | 4.2 | 5.4 | 13.9 |
| 75% | 5.6 | 4.3 | 3.5 | 3.4 | 3.8 | 6.5 |
| 90% | 4.6 | 3.6 | 2.9 | 2.8 | 3.1 | 3.8 |
| Mean | 4.0 | 1.6 | 1.3 | 2.8 | 8.1 | 33.8 |
| %Mean | 175.0 | 318.7 | 315.4 | 150.0 | 66.7 | 41.1 |
| 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: Patchy frost early in the morning. Areas of fog in the morning. Mostly cloudy. Highs around 56. Light winds. Tonight: Partly cloudy. Patchy fog after midnight. Lows 35 to 41. Light winds. Monday: Partly cloudy in the morning then clearing. Patchy frost in the morning. Highs around 54. Light winds. Monday Night: Mostly clear. Patchy fog. Lows 36 to 42. Light winds. Tuesday: Patchy fog in the morning. Mostly sunny. Highs around 56. Light winds. Tuesday Night: Mostly clear. Lows 38 to 44. Wednesday: Mostly sunny. Patchy fog. Highs 54 to 60. Wednesday Night: Clear. Patchy fog. Lows 39 to 45. Thursday: Partly cloudy. Patchy fog. Highs 56 to 62. Thursday Night through Friday Night: Mostly clear. Lows 40 to 46. Highs around 60. Saturday: Partly cloudy. Highs around 59. |
| Flood Impacts | |
| 13.2 Feet | Water floods houses in Wilton. The south bank levee near Wilton is overtopped. |
| 12.0 Feet | Water flows on to the road near Wilton. |
| 8.0 Feet | Low lying lands along the river begin to flood. |