« Back to Hughson Rivers

San Joaquin River at Mossdale Bridge

Critical Stages
19.5' - Action
28.5' - Flood
32.1' - Moderate
33.1' - Major

Latest Observation

Updated: 1:15 AM PST 12/18/25

Status: No Flooding

Stage: 4.04 ft

Flow: 0.24 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
3 AM 12/18 4.27 0.318
4 AM 12/18 4.27 0.318
5 AM 12/18 4.27 0.318
6 AM 12/18 4.27 0.318
7 AM 12/18 4.27 0.318
8 AM 12/18 4.28 0.322
9 AM 12/18 4.28 0.322
10 AM 12/18 4.28 0.322
11 AM 12/18 4.28 0.322
12 PM 12/18 4.29 0.325
1 PM 12/18 4.29 0.325
2 PM 12/18 4.3 0.329
3 PM 12/18 4.3 0.329
4 PM 12/18 4.3 0.329
5 PM 12/18 4.31 0.333
6 PM 12/18 4.31 0.333
7 PM 12/18 4.32 0.337
8 PM 12/18 4.32 0.337
9 PM 12/18 4.33 0.341
10 PM 12/18 4.33 0.341
11 PM 12/18 4.33 0.341
12 AM 12/19 4.34 0.345
1 AM 12/19 4.34 0.345
2 AM 12/19 4.34 0.345
3 AM 12/19 4.35 0.349
4 AM 12/19 4.35 0.349
5 AM 12/19 4.35 0.349
6 AM 12/19 4.36 0.353
7 AM 12/19 4.36 0.353
8 AM 12/19 4.36 0.353
9 AM 12/19 4.36 0.353
10 AM 12/19 4.37 0.357
11 AM 12/19 4.37 0.357
12 PM 12/19 4.37 0.357
1 PM 12/19 4.37 0.357
2 PM 12/19 4.37 0.357
3 PM 12/19 4.38 0.362
4 PM 12/19 4.38 0.362
5 PM 12/19 4.38 0.362
6 PM 12/19 4.38 0.362
7 PM 12/19 4.38 0.362
8 PM 12/19 4.38 0.362
9 PM 12/19 4.38 0.362
10 PM 12/19 4.39 0.366
11 PM 12/19 4.39 0.366
12 AM 12/20 4.39 0.366
1 AM 12/20 4.39 0.366
2 AM 12/20 4.39 0.366
3 AM 12/20 4.39 0.366
4 AM 12/20 4.39 0.366
5 AM 12/20 4.39 0.366
6 AM 12/20 4.39 0.366
7 AM 12/20 4.39 0.366
8 AM 12/20 4.4 0.37
9 AM 12/20 4.4 0.37
10 AM 12/20 4.4 0.37
11 AM 12/20 4.4 0.37
12 PM 12/20 4.4 0.37
1 PM 12/20 4.4 0.37
2 PM 12/20 4.4 0.37
3 PM 12/20 4.4 0.37
4 PM 12/20 4.4 0.37
5 PM 12/20 4.4 0.37
6 PM 12/20 4.4 0.37
7 PM 12/20 4.4 0.37
8 PM 12/20 4.4 0.37
9 PM 12/20 4.4 0.37
10 PM 12/20 4.4 0.37
11 PM 12/20 4.4 0.37
12 AM 12/21 4.4 0.37
1 AM 12/21 4.4 0.37
2 AM 12/21 4.4 0.37
3 AM 12/21 4.4 0.37
4 AM 12/21 4.4 0.37
5 AM 12/21 4.4 0.37
6 AM 12/21 4.4 0.37
7 AM 12/21 4.4 0.37
8 AM 12/21 4.4 0.37
9 AM 12/21 4.41 0.374
10 AM 12/21 4.41 0.374
11 AM 12/21 4.41 0.374
12 PM 12/21 4.41 0.374
1 PM 12/21 4.41 0.374
2 PM 12/21 4.41 0.374
3 PM 12/21 4.41 0.374
4 PM 12/21 4.41 0.374
5 PM 12/21 4.41 0.374
6 PM 12/21 4.41 0.374
7 PM 12/21 4.41 0.374
8 PM 12/21 4.41 0.374
9 PM 12/21 4.41 0.374
10 PM 12/21 4.41 0.374
11 PM 12/21 4.41 0.374
12 AM 12/22 4.41 0.374
1 AM 12/22 4.41 0.374
2 AM 12/22 4.41 0.374
3 AM 12/22 4.41 0.374
4 AM 12/22 4.41 0.374
TimeStage (ft)Flow (kcfs)
1:30 AM 12/18 3.97 0.22
1:15 AM 12/18 4.04 0.24
1:00 AM 12/18 4.11 0.262
12:45 AM 12/18 4.18 0.285
12:30 AM 12/18 4.26 0.314
12:15 AM 12/18 4.33 0.341
12:00 AM 12/18 4.41 0.374
11:45 PM 12/17 4.48 0.401
11:30 PM 12/17 4.56 0.433
11:15 PM 12/17 4.63 0.463
11:00 PM 12/17 4.71 0.5
10:45 PM 12/17 4.79 0.538
10:30 PM 12/17 4.86 0.574
10:15 PM 12/17 4.94 0.616
10:00 PM 12/17 5.02 0.662
9:45 PM 12/17 5.09 0.703
9:30 PM 12/17 5.17 0.753
9:15 PM 12/17 5.25 0.806
9:00 PM 12/17 5.32 0.854
8:45 PM 12/17 5.4 0.913
8:30 PM 12/17 5.47 0.966
8:15 PM 12/17 5.55 1.03
8:00 PM 12/17 5.63 1.1
7:45 PM 12/17 5.71 1.17
7:30 PM 12/17 5.8 1.25
7:15 PM 12/17 5.88 1.33
7:00 PM 12/17 5.96 1.41
6:45 PM 12/17 6.02 1.47
6:30 PM 12/17 6.08 1.54
6:15 PM 12/17 6.11 1.57
Hydrograph for San Joaquin River at Mossdale Bridge
33.1' - Stages above 33.1 feet result in flooding outside of the levees. Top of levee.
16.39' - Historically Mossdale Trailer Park evacuates.
15.4' - Mossdale Trailer Park is threatened by the high water. Mossdale Trailer Park is on the south side of the river inside the levee both upstream and downstream of the gage.
DateStage (ft)
Dec 10, 1950 24.4
Jan 9, 1997 23.24
Feb 23, 2017 21.7
Mar 23, 2023 20.52
Mar 7, 2001 18.15
Jan 24, 1967 18.1
Apr 3, 2011 17.87
Apr 13, 2006 17.19
Feb 14, 1998 17.13
Feb 27, 1980 16.95
Jan 5, 1984 15.93
Apr 19, 1982 15.42
Jan 24, 1970 15.06
May 4, 1978 14.45
Jun 6, 2019 14.31
Jan 12, 1965 14.11
May 31, 2005 11.98
Mar 6, 2024 11.32
Feb 15, 1999 10.45
Apr 8, 2018 10.43

Data provided by the National Weather Service.