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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: | Jul 01 2026 at 7:34 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: Jul 01 2026 at 7:39 AM PDT | ||||||
| Prob | Jul* | Aug | Sep | Oct | Nov | Dec |
| 10% | 5.0 | 3.4 | 3.2 | 7.3 | 19.2 | 109.7 |
| 25% | 4.9 | 3.4 | 2.7 | 3.6 | 8.2 | 27.9 |
| 50% | 4.9 | 3.4 | 2.6 | 2.5 | 4.0 | 10.8 |
| 75% | 4.9 | 3.3 | 2.5 | 2.3 | 2.4 | 4.5 |
| 90% | 4.9 | 3.3 | 2.5 | 2.2 | 2.2 | 2.6 |
| Mean | 4.0 | 1.6 | 1.3 | 2.8 | 8.1 | 33.8 |
| %Mean | 122.5 | 212.5 | 200.0 | 89.3 | 49.4 | 32.0 |
| Prob | Jan | Feb | Mar | Apr | May | Jun |
| 10% | 159.7 | 197.6 | 208.6 | 123.5 | 95.2 | 37.5 |
| 25% | 54.2 | 69.5 | 120.4 | 78.8 | 66.8 | 24.8 |
| 50% | 22.1 | 32.2 | 56.3 | 43.0 | 23.9 | 10.7 |
| 75% | 10.3 | 13.7 | 26.3 | 22.9 | 13.8 | 6.4 |
| 90% | 5.0 | 8.7 | 15.0 | 14.2 | 7.5 | 4.4 |
| Mean | 61.4 | 71.7 | 89.1 | 61.9 | 38.4 | 14.0 |
| %Mean | 36.0 | 44.9 | 63.2 | 69.5 | 62.2 | 76.4 |
| 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 |
| 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. |