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Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 9:45 PM PST 12/15/25
Status: Not Defined
Stage: 3.03 ft
Flow: 6.03 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 12 AM 12/16 | 4.2 | 7.21 |
| 5 AM 12/16 | 2.6 | 5.63 |
| 11 AM 12/16 | 5.8 | 8.81 |
| 8 PM 12/16 | 0.9 | -999 |
| 1 AM 12/17 | 4.3 | 7.31 |
| 5 AM 12/17 | 3 | 6 |
| 11 AM 12/17 | 5.8 | 8.81 |
| 9 PM 12/17 | 0.8 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10:15 PM 12/15 | 3.41 | 6.43 |
| 10:00 PM 12/15 | 3.3 | 6.31 |
| 9:45 PM 12/15 | 3.03 | 6.03 |
| 9:30 PM 12/15 | 2.8 | 5.82 |
| 9:15 PM 12/15 | 2.56 | 5.59 |
| 9:00 PM 12/15 | 2.32 | 5.35 |
| 8:45 PM 12/15 | 2.07 | 5.08 |
| 8:30 PM 12/15 | 1.77 | 4.81 |
| 8:15 PM 12/15 | 1.59 | 4.64 |
| 8:00 PM 12/15 | 1.37 | 4.43 |
| 7:45 PM 12/15 | 1.22 | 4.26 |
| 7:30 PM 12/15 | 1.14 | 4.17 |
| 7:15 PM 12/15 | 1.09 | 4.11 |
| 7:00 PM 12/15 | 1.09 | 4.11 |
| 6:45 PM 12/15 | 1.13 | 4.16 |
| 6:30 PM 12/15 | 1.16 | 4.2 |
| 6:15 PM 12/15 | 1.25 | 4.3 |
| 6:00 PM 12/15 | 1.26 | 4.31 |
| 5:45 PM 12/15 | 1.43 | 4.49 |
| 5:30 PM 12/15 | 1.54 | 4.6 |
| 5:15 PM 12/15 | 1.63 | 4.68 |
| 5:00 PM 12/15 | 1.77 | 4.81 |
| 4:45 PM 12/15 | 1.95 | 4.96 |
| 4:30 PM 12/15 | 2.06 | 5.07 |
| 4:15 PM 12/15 | 2.14 | 5.15 |
| 4:00 PM 12/15 | 2.32 | 5.35 |
| 3:45 PM 12/15 | 2.51 | 5.54 |
| 3:30 PM 12/15 | 2.62 | 5.65 |
| 3:15 PM 12/15 | 2.82 | 5.84 |
| 3:00 PM 12/15 | 2.88 | 5.89 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
