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Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 2:15 PM PST 12/16/25
Status: Not Defined
Stage: 4.03 ft
Flow: 7.03 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7 PM 12/16 | 0.9 | -999 |
| 1 AM 12/17 | 4.3 | 7.31 |
| 5 AM 12/17 | 3.3 | 6.31 |
| 11 AM 12/17 | 5.8 | 8.81 |
| 8 PM 12/17 | 0.8 | -999 |
| 2 AM 12/18 | 4.4 | 7.41 |
| 6 AM 12/18 | 3.5 | 6.52 |
| 11 AM 12/18 | 5.9 | 8.9 |
| 9 PM 12/18 | 0.8 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 2:30 PM 12/16 | 3.85 | 6.86 |
| 2:15 PM 12/16 | 4.03 | 7.03 |
| 2:00 PM 12/16 | 4.28 | 7.29 |
| 1:30 PM 12/16 | 4.77 | 7.78 |
| 1:15 PM 12/16 | 5.01 | 8.01 |
| 1:00 PM 12/16 | 5.24 | 8.25 |
| 12:45 PM 12/16 | 5.38 | 8.39 |
| 12:30 PM 12/16 | 5.52 | 8.53 |
| 12:15 PM 12/16 | 5.62 | 8.63 |
| 12:00 PM 12/16 | 5.7 | 8.71 |
| 11:45 AM 12/16 | 5.71 | 8.72 |
| 11:30 AM 12/16 | 5.71 | 8.72 |
| 11:15 AM 12/16 | 5.68 | 8.69 |
| 9:45 AM 12/16 | 5.23 | 8.24 |
| 9:30 AM 12/16 | 5.07 | 8.07 |
| 9:15 AM 12/16 | 4.96 | 7.96 |
| 9:00 AM 12/16 | 4.83 | 7.84 |
| 8:45 AM 12/16 | 4.68 | 7.69 |
| 8:30 AM 12/16 | 4.5 | 7.51 |
| 8:15 AM 12/16 | 4.34 | 7.35 |
| 8:00 AM 12/16 | 4.18 | 7.19 |
| 7:45 AM 12/16 | 4 | 7 |
| 7:30 AM 12/16 | 3.83 | 6.84 |
| 7:15 AM 12/16 | 3.68 | 6.69 |
| 7:00 AM 12/16 | 3.49 | 6.51 |
| 6:45 AM 12/16 | 3.29 | 6.3 |
| 6:30 AM 12/16 | 3.18 | 6.19 |
| 6:15 AM 12/16 | 3.06 | 6.06 |
| 6:00 AM 12/16 | 2.99 | 5.99 |
| 5:45 AM 12/16 | 2.89 | 5.9 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
