« Back to San Bruno Post Office Rivers
Sacramento-San Joaquin Delta at Mallard Island
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 8:45 PM PST 12/14/25
Status: Not Defined
Stage: 3.11 ft
Flow: 6.12 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11 PM 12/14 | 4.1 | 7.1 |
| 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) |
|---|---|---|
| 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 |
| 5:45 PM 12/14 | 1.53 | 4.59 |
| 5:30 PM 12/14 | 1.59 | 4.64 |
| 5:15 PM 12/14 | 1.64 | 4.69 |
| 5:00 PM 12/14 | 1.74 | 4.78 |
| 4:45 PM 12/14 | 1.86 | 4.88 |
| 4:30 PM 12/14 | 1.92 | 4.93 |
| 4:15 PM 12/14 | 2.03 | 5.03 |
| 4:00 PM 12/14 | 2.15 | 5.17 |
| 3:45 PM 12/14 | 2.27 | 5.29 |
| 3:30 PM 12/14 | 2.42 | 5.45 |
| 3:15 PM 12/14 | 2.58 | 5.61 |
| 3:00 PM 12/14 | 2.64 | 5.66 |
| 2:45 PM 12/14 | 2.81 | 5.83 |
| 2:30 PM 12/14 | 3 | 6 |
| 2:15 PM 12/14 | 3.16 | 6.17 |
| 2:00 PM 12/14 | 3.35 | 6.37 |
| 1:45 PM 12/14 | 3.55 | 6.57 |
| 1:30 PM 12/14 | 3.7 | 6.71 |
No flood impact data available for this location.
Historical crest information is not available.
Data provided by the National Weather Service.
