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Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 12:45 AM PST 12/15/25
Status: Not Defined
Stage: 4.04 ft
Flow: 7.04 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 4 AM 12/15 | 2.5 | 5.53 |
| 11 AM 12/15 | 5.7 | 8.71 |
| 7 PM 12/15 | 1 | 4 |
| 12 AM 12/16 | 4.1 | 7.1 |
| 5 AM 12/16 | 2.9 | 5.91 |
| 11 AM 12/16 | 5.8 | 8.81 |
| 7 PM 12/16 | 0.9 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1:15 AM 12/15 | 3.85 | 6.86 |
| 1:00 AM 12/15 | 3.95 | 6.95 |
| 12:45 AM 12/15 | 4.04 | 7.04 |
| 12:30 AM 12/15 | 4.1 | 7.1 |
| 12:15 AM 12/15 | 4.16 | 7.17 |
| 12:00 AM 12/15 | 4.17 | 7.18 |
| 11:45 PM 12/14 | 4.2 | 7.21 |
| 11:30 PM 12/14 | 4.19 | 7.2 |
| 11:15 PM 12/14 | 4.16 | 7.17 |
| 11:00 PM 12/14 | 4.14 | 7.15 |
| 10:45 PM 12/14 | 4.08 | 7.08 |
| 10:30 PM 12/14 | 4.03 | 7.03 |
| 10:15 PM 12/14 | 3.96 | 6.96 |
| 10:00 PM 12/14 | 3.93 | 6.93 |
| 9:45 PM 12/14 | 3.79 | 6.8 |
| 9:30 PM 12/14 | 3.66 | 6.67 |
| 9:15 PM 12/14 | 3.49 | 6.51 |
| 9:00 PM 12/14 | 3.32 | 6.33 |
| 8:45 PM 12/14 | 3.11 | 6.12 |
| 8:30 PM 12/14 | 2.89 | 5.9 |
| 8:15 PM 12/14 | 2.67 | 5.69 |
| 8:00 PM 12/14 | 2.44 | 5.47 |
| 7:45 PM 12/14 | 2.22 | 5.24 |
| 7:30 PM 12/14 | 2 | 5 |
| 7:15 PM 12/14 | 1.8 | 4.83 |
| 7:00 PM 12/14 | 1.63 | 4.68 |
| 6:45 PM 12/14 | 1.52 | 4.58 |
| 6:30 PM 12/14 | 1.47 | 4.53 |
| 6:15 PM 12/14 | 1.48 | 4.54 |
| 6:00 PM 12/14 | 1.45 | 4.51 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
