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Sacramento-San Joaquin Delta at Mallard Island

Critical Stages
Action
Flood
Moderate
Major

Latest Observation

Updated: 8:15 AM PST 12/16/25

Status: Not Defined

Stage: 4.34 ft

Flow: 7.35 kcfs

Forecast

TimeStage (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
TimeStage (ft)Flow (kcfs)
8:45 AM 12/16 4.68 7.69
8:30 AM 12/16 4.5 7.51
8:15 AM 12/16 4.34 7.35
8:00 AM 12/16 4.18 7.19
7:45 AM 12/16 4 7
7:30 AM 12/16 3.83 6.84
7:15 AM 12/16 3.68 6.69
7:00 AM 12/16 3.49 6.51
6:45 AM 12/16 3.29 6.3
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
Hydrograph for Sacramento-San Joaquin Delta at Mallard Island

No flood impact data available for this location.

Historical crest information is not available.

Data provided by the National Weather Service.