Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 6:30 AM PST 12/16/25
Status: Not Defined
Stage: 3.18 ft
Flow: 6.19 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11 AM 12/16 | 5.8 | 8.81 |
| 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) |
|---|---|---|
| 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 |
| 5:30 AM 12/16 | 2.85 | 5.86 |
| 5:15 AM 12/16 | 2.86 | 5.87 |
| 5:00 AM 12/16 | 2.86 | 5.87 |
| 4:45 AM 12/16 | 2.83 | 5.84 |
| 4:30 AM 12/16 | 2.88 | 5.89 |
| 4:15 AM 12/16 | 2.97 | 5.97 |
| 4:00 AM 12/16 | 3.07 | 6.07 |
| 3:45 AM 12/16 | 3.18 | 6.19 |
| 3:30 AM 12/16 | 3.28 | 6.29 |
| 3:15 AM 12/16 | 3.41 | 6.43 |
| 3:00 AM 12/16 | 3.52 | 6.54 |
| 2:45 AM 12/16 | 3.65 | 6.66 |
| 2:30 AM 12/16 | 3.76 | 6.77 |
| 2:15 AM 12/16 | 3.87 | 6.88 |
| 2:00 AM 12/16 | 3.96 | 6.96 |
| 1:45 AM 12/16 | 4.04 | 7.04 |
| 1:30 AM 12/16 | 4.09 | 7.09 |
| 1:15 AM 12/16 | 4.13 | 7.14 |
| 1:00 AM 12/16 | 4.15 | 7.16 |
| 12:45 AM 12/16 | 4.15 | 7.16 |
| 12:30 AM 12/16 | 4.14 | 7.15 |
| 12:15 AM 12/16 | 4.11 | 7.11 |
| 12:00 AM 12/16 | 4.08 | 7.08 |
| 11:45 PM 12/15 | 4.03 | 7.03 |
| 11:30 PM 12/15 | 3.96 | 6.96 |
| 11:15 PM 12/15 | 3.88 | 6.89 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
