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Hydrograph River at a Glance Download
San Joaquin River at Mossdale Bridge Stage (ft)Flow (kcfs)Observed: 3.94 ft at 10:00AM Dec 04, 2023Observed: 3.98 ft at 10:15AM Dec 04, 2023Observed: 4.03 ft at 10:30AM Dec 04, 2023Observed: 4.08 ft at 10:45AM Dec 04, 2023Observed: 4.14 ft at 11:00AM Dec 04, 2023Observed: 4.26 ft at 11:30AM Dec 04, 2023Observed: 4.31 ft at 11:45AM Dec 04, 2023Observed: 4.38 ft at 12:00PM Dec 04, 2023Observed: 4.44 ft at 12:15PM Dec 04, 2023Observed: 4.5 ft at 12:30PM Dec 04, 2023Observed: 4.56 ft at 12:45PM Dec 04, 2023Observed: 4.63 ft at 1:00PM Dec 04, 2023Observed: 4.69 ft at 1:15PM Dec 04, 2023Observed: 4.79 ft at 1:30PM Dec 04, 2023Observed: 4.84 ft at 1:45PM Dec 04, 2023Observed: 4.92 ft at 2:00PM Dec 04, 2023Observed: 5 ft at 2:15PM Dec 04, 2023Observed: 5.08 ft at 2:45PM Dec 04, 2023Observed: 5.08 ft at 3:00PM Dec 04, 2023Observed: 5.06 ft at 3:15PM Dec 04, 2023Observed: 5.05 ft at 3:30PM Dec 04, 2023Observed: 5.03 ft at 3:45PM Dec 04, 2023Observed: 5 ft at 4:00PM Dec 04, 2023Observed: 4.97 ft at 4:15PM Dec 04, 2023Observed: 4.93 ft at 4:30PM Dec 04, 2023Observed: 4.88 ft at 4:45PM Dec 04, 2023Observed: 4.83 ft at 5:00PM Dec 04, 2023Observed: 4.78 ft at 5:15PM Dec 04, 2023Observed: 4.72 ft at 5:30PM Dec 04, 2023Observed: 4.67 ft at 5:45PM Dec 04, 2023Observed: 4.62 ft at 6:00PM Dec 04, 2023Observed: 4.57 ft at 6:15PM Dec 04, 2023Observed: 4.52 ft at 6:30PM Dec 04, 2023Observed: 4.47 ft at 6:45PM Dec 04, 2023Observed: 4.43 ft at 7:00PM Dec 04, 2023Observed: 4.38 ft at 7:15PM Dec 04, 2023Observed: 4.34 ft at 7:30PM Dec 04, 2023Observed: 4.31 ft at 7:45PM Dec 04, 2023Observed: 4.28 ft at 8:00PM Dec 04, 2023Observed: 4.27 ft at 8:15PM Dec 04, 2023Observed: 4.29 ft at 8:30PM Dec 04, 2023Observed: 4.35 ft at 8:45PM Dec 04, 2023Observed: 4.43 ft at 9:00PM Dec 04, 2023Observed: 4.49 ft at 9:15PM Dec 04, 2023Observed: 4.82 ft at 10:30PM Dec 04, 2023Observed: 4.88 ft at 10:45PM Dec 04, 2023Observed: 4.93 ft at 11:00PM Dec 04, 2023Observed: 4.98 ft at 11:15PM Dec 04, 2023Observed: 5.03 ft at 11:30PM Dec 04, 2023Observed: 5.07 ft at 11:45PM Dec 04, 2023Observed: 5.08 ft at 12:00AM Dec 05, 2023Observed: 5.09 ft at 12:15AM Dec 05, 2023Observed: 5.07 ft at 12:30AM Dec 05, 2023Observed: 5.07 ft at 12:45AM Dec 05, 2023Observed: 5.05 ft at 1:00AM Dec 05, 2023Observed: 5.02 ft at 1:15AM Dec 05, 2023Observed: 4.99 ft at 1:30AM Dec 05, 2023Observed: 4.93 ft at 1:45AM Dec 05, 2023Observed: 4.88 ft at 2:00AM Dec 05, 2023Observed: 4.83 ft at 2:15AM Dec 05, 2023Observed: 4.77 ft at 2:30AM Dec 05, 2023Observed: 4.71 ft at 2:45AM Dec 05, 2023Observed: 4.65 ft at 3:00AM Dec 05, 2023Observed: 4.57 ft at 3:15AM Dec 05, 2023Observed: 4.52 ft at 3:30AM Dec 05, 2023Observed: 4.46 ft at 3:45AM Dec 05, 2023Observed: 4.35 ft at 4:15AM Dec 05, 2023Observed: 4.28 ft at 4:30AM Dec 05, 2023Observed: 4.23 ft at 4:45AM Dec 05, 2023Observed: 4.16 ft at 5:00AM Dec 05, 2023Observed: 4.11 ft at 5:15AM Dec 05, 2023Observed: 4.05 ft at 5:30AM Dec 05, 2023Observed: 3.99 ft at 5:45AM Dec 05, 2023Observed: 3.94 ft at 6:00AM Dec 05, 2023Observed: 3.88 ft at 6:15AM Dec 05, 2023Observed: 3.83 ft at 6:30AM Dec 05, 2023Observed: 3.77 ft at 6:45AM Dec 05, 2023Observed: 3.72 ft at 7:00AM Dec 05, 2023Observed: 3.66 ft at 7:15AM Dec 05, 2023Observed: 3.62 ft at 7:30AM Dec 05, 2023Observed: 3.57 ft at 7:45AM Dec 05, 2023Observed: 3.53 ft at 8:00AM Dec 05, 2023Observed: 3.48 ft at 8:15AM Dec 05, 2023Observed: 3.44 ft at 8:45AM Dec 05, 2023Observed: 3.45 ft at 9:00AM Dec 05, 2023Observed: 3.51 ft at 9:15AM Dec 05, 2023Observed: 3.57 ft at 9:30AM Dec 05, 2023Observed: 3.65 ft at 9:45AM Dec 05, 2023Observed: 3.73 ft at 10:00AM Dec 05, 2023Observed: 3.81 ft at 10:15AM Dec 05, 2023Observed: 3.89 ft at 10:30AM Dec 05, 2023Observed: 3.96 ft at 10:45AM Dec 05, 2023Observed: 4.03 ft at 11:00AM Dec 05, 2023Observed: 4.11 ft at 11:15AM Dec 05, 2023Observed: 4.18 ft at 11:30AM Dec 05, 2023Observed: 4.27 ft at 11:45AM Dec 05, 2023Observed: 4.43 ft at 12:15PM Dec 05, 2023Observed: 4.51 ft at 12:30PM Dec 05, 2023Observed: 4.6 ft at 12:45PM Dec 05, 2023Observed: 4.68 ft at 1:00PM Dec 05, 2023Observed: 4.76 ft at 1:15PM Dec 05, 2023Observed: 4.83 ft at 1:30PM Dec 05, 2023Observed: 4.91 ft at 1:45PM Dec 05, 2023Observed: 4.97 ft at 2:00PM Dec 05, 2023Observed: 5.15 ft at 2:45PM Dec 05, 2023Observed: 5.22 ft at 3:15PM Dec 05, 2023Observed: 5.21 ft at 3:30PM Dec 05, 2023Observed: 5.18 ft at 3:45PM Dec 05, 2023Observed: 5.15 ft at 4:00PM Dec 05, 2023Observed: 5.12 ft at 4:15PM Dec 05, 2023Observed: 5 ft at 5:00PM Dec 05, 2023Observed: 4.77 ft at 6:00PM Dec 05, 2023Observed: 4.71 ft at 6:15PM Dec 05, 2023Observed: 4.65 ft at 6:30PM Dec 05, 2023Observed: 4.6 ft at 6:45PM Dec 05, 2023Observed: 4.48 ft at 7:15PM Dec 05, 2023Observed: 4.44 ft at 7:30PM Dec 05, 2023Observed: 4.39 ft at 7:45PM Dec 05, 2023Observed: 4.33 ft at 8:00PM Dec 05, 2023Observed: 4.28 ft at 8:15PM Dec 05, 2023Observed: 4.24 ft at 8:30PM Dec 05, 2023Observed: 4.19 ft at 8:45PM Dec 05, 2023Observed: 4.48 ft at 11:15PM Dec 05, 2023Observed: 4.54 ft at 11:30PM Dec 05, 2023Observed: 4.65 ft at 12:00AM Dec 06, 2023Observed: 4.71 ft at 12:15AM Dec 06, 2023Observed: 4.76 ft at 12:30AM Dec 06, 2023Observed: 4.8 ft at 12:45AM Dec 06, 2023Observed: 4.9 ft at 1:30AM Dec 06, 2023Observed: 4.91 ft at 1:45AM Dec 06, 2023Observed: 4.9 ft at 2:00AM Dec 06, 2023Observed: 4.89 ft at 2:15AM Dec 06, 2023Observed: 4.87 ft at 2:30AM Dec 06, 2023Observed: 4.81 ft at 2:45AM Dec 06, 2023Observed: 4.71 ft at 3:15AM Dec 06, 2023Observed: 4.66 ft at 3:30AM Dec 06, 2023Observed: 4.61 ft at 3:45AM Dec 06, 2023Observed: 4.55 ft at 4:00AM Dec 06, 2023Observed: 4.5 ft at 4:15AM Dec 06, 2023Observed: 4.44 ft at 4:30AM Dec 06, 2023Observed: 4.38 ft at 4:45AM Dec 06, 2023Observed: 4.33 ft at 5:00AM Dec 06, 2023Observed: 4.27 ft at 5:15AM Dec 06, 2023Observed: 4.22 ft at 5:30AM Dec 06, 2023Observed: 4.17 ft at 5:45AM Dec 06, 2023Observed: 4.12 ft at 6:00AM Dec 06, 2023Observed: 4.06 ft at 6:15AM Dec 06, 2023Observed: 4 ft at 6:30AM Dec 06, 2023Observed: 3.96 ft at 6:45AM Dec 06, 2023Observed: 3.9 ft at 7:00AM Dec 06, 2023Observed: 3.85 ft at 7:15AM Dec 06, 2023Observed: 3.81 ft at 7:30AM Dec 06, 2023Observed: 3.76 ft at 7:45AM Dec 06, 2023Observed: 3.71 ft at 8:00AM Dec 06, 2023Observed: 3.67 ft at 8:15AM Dec 06, 2023Observed: 3.62 ft at 8:30AM Dec 06, 2023Observed: 3.59 ft at 8:45AM Dec 06, 2023Observed: 3.57 ft at 9:00AM Dec 06, 2023Observed: 3.57 ft at 9:15AM Dec 06, 2023Observed: 3.61 ft at 9:30AM Dec 06, 2023Observed: 3.68 ft at 9:45AM Dec 06, 2023Observed: 3.75 ft at 10:00AM Dec 06, 2023Observed: 3.83 ft at 10:15AM Dec 06, 2023Observed: 3.92 ft at 10:30AM Dec 06, 2023Observed: 4 ft at 10:45AM Dec 06, 2023Observed: 4.25 ft at 11:30AM Dec 06, 2023Observed: 4.45 ft at 12:00PM Dec 06, 2023Observed: 4.98 ft at 1:45PM Dec 06, 2023Observed: 5.05 ft at 2:00PM Dec 06, 2023Observed: 5.13 ft at 2:15PM Dec 06, 2023Observed: 5.21 ft at 2:30PM Dec 06, 2023Observed: 5.28 ft at 2:45PM Dec 06, 2023Observed: 5.34 ft at 3:00PM Dec 06, 2023Observed: 5.39 ft at 3:15PM Dec 06, 2023Observed: 5.44 ft at 3:30PM Dec 06, 2023Observed: 5.48 ft at 3:45PM Dec 06, 2023Highest Observation: 5.5 ft at 4:00PM Dec 06, 2023Observed: 5.49 ft at 4:15PM Dec 06, 2023Observed: 5.46 ft at 4:30PM Dec 06, 2023Observed: 5.41 ft at 4:45PM Dec 06, 2023Observed: 5.38 ft at 5:00PM Dec 06, 2023Observed: 5.37 ft at 5:15PM Dec 06, 2023Observed: 5.32 ft at 5:30PM Dec 06, 2023Observed: 5.3 ft at 5:45PM Dec 06, 2023Observed: 5.26 ft at 6:00PM Dec 06, 2023Observed: 5.2 ft at 6:15PM Dec 06, 2023Observed: 5.15 ft at 6:30PM Dec 06, 2023Observed: 5.09 ft at 6:45PM Dec 06, 2023Observed: 5.03 ft at 7:00PM Dec 06, 2023Observed: 4.97 ft at 7:15PM Dec 06, 2023Observed: 4.91 ft at 7:30PM Dec 06, 2023Observed: 4.85 ft at 7:45PM Dec 06, 2023Observed: 4.79 ft at 8:00PM Dec 06, 2023Observed: 4.73 ft at 8:15PM Dec 06, 2023Observed: 4.67 ft at 8:30PM Dec 06, 2023Observed: 4.61 ft at 8:45PM Dec 06, 2023Observed: 4.56 ft at 9:00PM Dec 06, 2023Observed: 4.5 ft at 9:15PM Dec 06, 2023Observed: 4.4 ft at 9:45PM Dec 06, 2023Observed: 4.35 ft at 10:00PM Dec 06, 2023Observed: 4.3 ft at 10:15PM Dec 06, 2023Observed: 4.28 ft at 10:30PM Dec 06, 2023Observed: 4.28 ft at 10:45PM Dec 06, 2023Observed: 4.32 ft at 11:00PM Dec 06, 2023Observed: 4.4 ft at 11:15PM Dec 06, 2023Observed: 4.47 ft at 11:30PM Dec 06, 2023Observed: 4.54 ft at 11:45PM Dec 06, 2023Observed: 4.6 ft at 12:00AM Dec 07, 2023Observed: 4.67 ft at 12:15AM Dec 07, 2023Observed: 4.72 ft at 12:30AM Dec 07, 2023Observed: 4.78 ft at 12:45AM Dec 07, 2023Observed: 4.83 ft at 1:00AM Dec 07, 2023Observed: 4.89 ft at 1:15AM Dec 07, 2023Observed: 4.94 ft at 1:30AM Dec 07, 2023Observed: 4.99 ft at 1:45AM Dec 07, 2023Observed: 5.04 ft at 2:00AM Dec 07, 2023Observed: 5.08 ft at 2:15AM Dec 07, 2023Observed: 5.11 ft at 2:30AM Dec 07, 2023Observed: 5.13 ft at 2:45AM Dec 07, 2023Observed: 5.14 ft at 3:00AM Dec 07, 2023Observed: 5.12 ft at 3:15AM Dec 07, 2023Observed: 5.1 ft at 3:30AM Dec 07, 2023Observed: 5.07 ft at 3:45AM Dec 07, 2023Observed: 5.04 ft at 4:00AM Dec 07, 2023Observed: 4.97 ft at 4:15AM Dec 07, 2023Observed: 4.92 ft at 4:30AM Dec 07, 2023Observed: 4.87 ft at 4:45AM Dec 07, 2023Observed: 4.81 ft at 5:00AM Dec 07, 2023Observed: 4.75 ft at 5:15AM Dec 07, 2023Observed: 4.69 ft at 5:30AM Dec 07, 2023Observed: 4.63 ft at 5:45AM Dec 07, 2023Observed: 4.57 ft at 6:00AM Dec 07, 2023Observed: 4.51 ft at 6:15AM Dec 07, 2023Observed: 4.45 ft at 6:30AM Dec 07, 2023Observed: 4.34 ft at 7:00AM Dec 07, 2023Observed: 4.28 ft at 7:15AM Dec 07, 2023Observed: 4.16 ft at 7:45AM Dec 07, 2023Observed: 4.11 ft at 8:00AM Dec 07, 2023Observed: 4.06 ft at 8:15AM Dec 07, 2023Observed: 4 ft at 8:30AM Dec 07, 2023Observed: 3.95 ft at 8:45AM Dec 07, 2023Observed: 3.9 ft at 9:00AM Dec 07, 2023Observed: 3.85 ft at 9:15AM Dec 07, 2023Highest Forecast: 5.9 ft 10:00AM Dec 07, 2023Highest Forecast: 5.9 ft 11:00AM Dec 07, 2023Highest Forecast: 5.9 ft 12:00PM Dec 07, 2023Highest Forecast: 5.9 ft 1:00PM Dec 07, 2023Highest Forecast: 5.9 ft 2:00PM Dec 07, 2023Highest Forecast: 5.9 ft 3:00PM Dec 07, 2023Highest Forecast: 5.9 ft 4:00PM Dec 07, 2023Highest Forecast: 5.9 ft 5:00PM Dec 07, 2023Highest Forecast: 5.9 ft 6:00PM Dec 07, 2023Highest Forecast: 5.9 ft 7:00PM Dec 07, 2023Highest Forecast: 5.9 ft 8:00PM Dec 07, 2023Highest Forecast: 5.9 ft 9:00PM Dec 07, 2023Highest Forecast: 5.9 ft 10:00PM Dec 07, 2023Highest Forecast: 5.9 ft 11:00PM Dec 07, 2023Highest Forecast: 5.9 ft 12:00AM Dec 08, 2023Highest Forecast: 5.9 ft 1:00AM Dec 08, 2023Highest Forecast: 5.9 ft 2:00AM Dec 08, 2023Highest Forecast: 5.9 ft 3:00AM Dec 08, 2023Highest Forecast: 5.9 ft 4:00AM Dec 08, 2023Highest Forecast: 5.9 ft 5:00AM Dec 08, 2023Highest Forecast: 5.9 ft 6:00AM Dec 08, 2023Highest Forecast: 5.9 ft 7:00AM Dec 08, 2023Highest Forecast: 5.9 ft 8:00AM Dec 08, 2023Highest Forecast: 5.9 ft 9:00AM Dec 08, 2023Highest Forecast: 5.9 ft 10:00AM Dec 08, 2023Highest Forecast: 5.9 ft 11:00AM Dec 08, 2023Highest Forecast: 5.9 ft 12:00PM Dec 08, 2023Highest Forecast: 5.9 ft 1:00PM Dec 08, 2023Highest Forecast: 5.9 ft 2:00PM Dec 08, 2023Highest Forecast: 5.9 ft 3:00PM Dec 08, 2023Highest Forecast: 5.9 ft 4:00PM Dec 08, 2023Highest Forecast: 5.9 ft 5:00PM Dec 08, 2023Highest Forecast: 5.9 ft 6:00PM Dec 08, 2023Highest Forecast: 5.9 ft 7:00PM Dec 08, 2023Highest Forecast: 5.9 ft 8:00PM Dec 08, 2023Highest Forecast: 5.9 ft 9:00PM Dec 08, 2023Highest Forecast: 5.9 ft 10:00PM Dec 08, 2023Highest Forecast: 5.9 ft 11:00PM Dec 08, 2023Highest Forecast: 5.9 ft 12:00AM Dec 09, 2023Highest Forecast: 5.9 ft 1:00AM Dec 09, 2023Highest Forecast: 5.9 ft 2:00AM Dec 09, 2023Highest Forecast: 5.9 ft 3:00AM Dec 09, 2023Highest Forecast: 5.9 ft 4:00AM Dec 09, 2023Highest Forecast: 5.9 ft 5:00AM Dec 09, 2023Highest Forecast: 5.9 ft 6:00AM Dec 09, 2023Highest Forecast: 5.9 ft 7:00AM Dec 09, 2023Highest Forecast: 5.9 ft 8:00AM Dec 09, 2023Highest Forecast: 5.9 ft 9:00AM Dec 09, 2023Highest Forecast: 5.9 ft 10:00AM Dec 09, 2023Highest Forecast: 5.9 ft 11:00AM Dec 09, 2023Highest Forecast: 5.9 ft 12:00PM Dec 09, 2023Highest Forecast: 5.9 ft 1:00PM Dec 09, 2023Highest Forecast: 5.9 ft 2:00PM Dec 09, 2023Highest Forecast: 5.9 ft 3:00PM Dec 09, 2023Highest Forecast: 5.9 ft 4:00PM Dec 09, 2023Highest Forecast: 5.9 ft 5:00PM Dec 09, 2023Highest Forecast: 5.9 ft 6:00PM Dec 09, 2023Highest Forecast: 5.9 ft 7:00PM Dec 09, 2023Highest Forecast: 5.9 ft 8:00PM Dec 09, 2023Highest Forecast: 5.9 ft 9:00PM Dec 09, 2023Highest Forecast: 5.9 ft 10:00PM Dec 09, 2023Highest Forecast: 5.9 ft 11:00PM Dec 09, 2023Highest Forecast: 5.9 ft 12:00AM Dec 10, 2023Highest Forecast: 5.9 ft 1:00AM Dec 10, 2023Highest Forecast: 5.9 ft 2:00AM Dec 10, 2023Highest Forecast: 5.9 ft 3:00AM Dec 10, 2023Highest Forecast: 5.9 ft 4:00AM Dec 10, 2023Highest Forecast: 5.9 ft 5:00AM Dec 10, 2023Highest Forecast: 5.9 ft 6:00AM Dec 10, 2023Highest Forecast: 5.9 ft 7:00AM Dec 10, 2023Highest Forecast: 5.9 ft 8:00AM Dec 10, 2023Highest Forecast: 5.9 ft 9:00AM Dec 10, 2023Highest Forecast: 5.9 ft 10:00AM Dec 10, 2023Highest Forecast: 5.9 ft 11:00AM Dec 10, 2023Highest Forecast: 5.9 ft 12:00PM Dec 10, 2023Highest Forecast: 5.9 ft 1:00PM Dec 10, 2023Highest Forecast: 5.9 ft 2:00PM Dec 10, 2023Highest Forecast: 5.9 ft 3:00PM Dec 10, 2023Highest Forecast: 5.9 ft 4:00PM Dec 10, 2023Highest Forecast: 5.9 ft 5:00PM Dec 10, 2023Highest Forecast: 5.9 ft 6:00PM Dec 10, 2023Highest Forecast: 5.9 ft 7:00PM Dec 10, 2023Highest Forecast: 5.9 ft 8:00PM Dec 10, 2023Highest Forecast: 5.9 ft 9:00PM Dec 10, 2023Highest Forecast: 5.9 ft 10:00PM Dec 10, 2023Highest Forecast: 5.9 ft 11:00PM Dec 10, 2023Highest Forecast: 5.9 ft 12:00AM Dec 11, 2023Highest Forecast: 5.9 ft 1:00AM Dec 11, 2023Highest Forecast: 5.9 ft 2:00AM Dec 11, 2023Highest Forecast: 5.9 ft 3:00AM Dec 11, 2023Highest Forecast: 5.9 ft 4:00AM Dec 11, 2023Highest Forecast: 5.9 ft 5:00AM Dec 11, 2023Highest Forecast: 5.9 ft 6:00AM Dec 11, 2023Highest Forecast: 5.9 ft 7:00AM Dec 11, 2023Highest Forecast: 5.9 ft 8:00AM Dec 11, 2023Highest Forecast: 5.9 ft 9:00AM Dec 11, 2023Highest Forecast: 5.9 ft 10:00AM Dec 11, 2023Highest Forecast: 5.9 ft 11:00AM Dec 11, 2023Highest Forecast: 5.9 ft 12:00PM Dec 11, 2023Highest Forecast: 5.9 ft 1:00PM Dec 11, 2023Highest Forecast: 5.9 ft 2:00PM Dec 11, 2023Highest Forecast: 5.9 ft 3:00PM Dec 11, 2023Highest Forecast: 5.9 ft 4:00PM Dec 11, 2023Highest Forecast: 5.9 ft 5:00PM Dec 11, 2023Highest Forecast: 5.9 ft 6:00PM Dec 11, 2023Highest Forecast: 5.9 ft 7:00PM Dec 11, 2023Highest Forecast: 5.9 ft 8:00PM Dec 11, 2023Highest Forecast: 5.9 ft 9:00PM Dec 11, 2023Highest Forecast: 5.9 ft 10:00PM Dec 11, 2023Highest Forecast: 5.9 ft 11:00PM Dec 11, 2023Highest Forecast: 5.9 ft 12:00AM Dec 12, 2023Highest Forecast: 5.9 ft 1:00AM Dec 12, 2023Highest Forecast: 5.9 ft 2:00AM Dec 12, 2023Highest Forecast: 5.9 ft 3:00AM Dec 12, 2023Highest Forecast: 5.9 ft 4:00AM Dec 12, 2023MOSC1(plotting HGIRG) Graph Created (9:53AM Dec 7, 2023)ObservedForecast (issued 7:49AM Dec 7)Latest observed value: 3.85 ft at 9:15 AM PST 7-Dec-2023. Flood Stage is 28.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Crests prior to 10/1/2006 are in an old datum. Datum change to NAVD88 occurred 10/1/2006. See LINK for correction value.

NOTE: Forecasts for the San Joaquin River at Mossdale Bridge are issued routinely year-round.

Return to Area Map
Upstream Gauge - at Vernalis Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 33.1
Moderate Flood Stage: 32.1
Flood Stage: 28.5
Action Stage: 19.5
Low Stage (in feet): 0

Historic Crests
(1) 24.40 ft on 12/10/1950
(2) 23.24 ft on 01/09/1997
(3) 21.70 ft on 02/23/2017
(4) 20.52 ft on 03/23/2023 (P)
(5) 18.15 ft on 03/07/2001
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.52 ft on 03/23/2023 (P)
(2) 7.51 ft on 10/24/2021
(3) 6.74 ft on 06/27/2021
(4) 7.93 ft on 12/13/2019
(5) 14.31 ft on 06/06/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
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.
About This Location Collapse

Latitude: 37.786111° N, Longitude: 121.306111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 28.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 0 ft 26.2 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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