Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 3:15 AM PST 12/16/25
Status: Not Defined
Stage: 3.41 ft
Flow: 6.43 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 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) |
|---|---|---|
| 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 |
| 11:00 PM 12/15 | 3.81 | 6.82 |
| 10:45 PM 12/15 | 3.68 | 6.69 |
| 10:30 PM 12/15 | 3.57 | 6.59 |
| 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 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
