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Hydrograph River at a Glance Download
Napa River near Napa Stage (ft)Flow (kcfs)Observed: 2.22 ft at 2:30PM Oct 12, 2019Observed: 2.22 ft at 2:45PM Oct 12, 2019Observed: 2.21 ft at 3:00PM Oct 12, 2019Observed: 2.21 ft at 3:15PM Oct 12, 2019Observed: 2.22 ft at 3:30PM Oct 12, 2019Observed: 2.22 ft at 3:45PM Oct 12, 2019Observed: 2.22 ft at 4:00PM Oct 12, 2019Observed: 2.22 ft at 4:15PM Oct 12, 2019Observed: 2.21 ft at 4:30PM Oct 12, 2019Observed: 2.21 ft at 4:45PM Oct 12, 2019Observed: 2.21 ft at 5:00PM Oct 12, 2019Observed: 2.21 ft at 5:15PM Oct 12, 2019Observed: 2.21 ft at 5:30PM Oct 12, 2019Observed: 2.21 ft at 5:45PM Oct 12, 2019Observed: 2.22 ft at 6:00PM Oct 12, 2019Observed: 2.22 ft at 6:15PM Oct 12, 2019Observed: 2.22 ft at 6:30PM Oct 12, 2019Observed: 2.22 ft at 6:45PM Oct 12, 2019Observed: 2.22 ft at 7:00PM Oct 12, 2019Observed: 2.21 ft at 7:15PM Oct 12, 2019Observed: 2.21 ft at 7:30PM Oct 12, 2019Observed: 2.21 ft at 7:45PM Oct 12, 2019Observed: 2.21 ft at 8:00PM Oct 12, 2019Observed: 2.21 ft at 8:15PM Oct 12, 2019Observed: 2.21 ft at 8:30PM Oct 12, 2019Observed: 2.21 ft at 8:45PM Oct 12, 2019Observed: 2.22 ft at 9:00PM Oct 12, 2019Observed: 2.21 ft at 9:15PM Oct 12, 2019Observed: 2.21 ft at 9:30PM Oct 12, 2019Observed: 2.21 ft at 9:45PM Oct 12, 2019Observed: 2.21 ft at 10:00PM Oct 12, 2019Observed: 2.22 ft at 10:15PM Oct 12, 2019Observed: 2.21 ft at 10:30PM Oct 12, 2019Observed: 2.21 ft at 10:45PM Oct 12, 2019Observed: 2.22 ft at 11:00PM Oct 12, 2019Observed: 2.22 ft at 11:15PM Oct 12, 2019Observed: 2.21 ft at 11:30PM Oct 12, 2019Observed: 2.21 ft at 11:45PM Oct 12, 2019Observed: 2.21 ft at 12:00AM Oct 13, 2019Observed: 2.22 ft at 12:15AM Oct 13, 2019Observed: 2.21 ft at 12:30AM Oct 13, 2019Observed: 2.21 ft at 12:45AM Oct 13, 2019Observed: 2.22 ft at 1:00AM Oct 13, 2019Observed: 2.22 ft at 1:15AM Oct 13, 2019Observed: 2.21 ft at 1:30AM Oct 13, 2019Observed: 2.21 ft at 1:45AM Oct 13, 2019Observed: 2.21 ft at 2:00AM Oct 13, 2019Observed: 2.21 ft at 2:15AM Oct 13, 2019Observed: 2.21 ft at 2:30AM Oct 13, 2019Observed: 2.21 ft at 2:45AM Oct 13, 2019Observed: 2.21 ft at 3:00AM Oct 13, 2019Observed: 2.21 ft at 3:15AM Oct 13, 2019Observed: 2.21 ft at 3:30AM Oct 13, 2019Observed: 2.21 ft at 3:45AM Oct 13, 2019Observed: 2.21 ft at 4:00AM Oct 13, 2019Observed: 2.21 ft at 4:15AM Oct 13, 2019Observed: 2.21 ft at 4:30AM Oct 13, 2019Observed: 2.21 ft at 4:45AM Oct 13, 2019Observed: 2.22 ft at 5:00AM Oct 13, 2019Observed: 2.21 ft at 5:15AM Oct 13, 2019Observed: 2.21 ft at 5:30AM Oct 13, 2019Observed: 2.21 ft at 5:45AM Oct 13, 2019Observed: 2.21 ft at 6:00AM Oct 13, 2019Observed: 2.21 ft at 6:15AM Oct 13, 2019Observed: 2.21 ft at 6:30AM Oct 13, 2019Observed: 2.21 ft at 6:45AM Oct 13, 2019Observed: 2.21 ft at 7:00AM Oct 13, 2019Observed: 2.22 ft at 7:15AM Oct 13, 2019Observed: 2.21 ft at 7:30AM Oct 13, 2019Observed: 2.21 ft at 7:45AM Oct 13, 2019Observed: 2.21 ft at 8:00AM Oct 13, 2019Observed: 2.21 ft at 8:15AM Oct 13, 2019Observed: 2.21 ft at 8:30AM Oct 13, 2019Observed: 2.21 ft at 8:45AM Oct 13, 2019Observed: 2.21 ft at 9:00AM Oct 13, 2019Observed: 2.21 ft at 9:15AM Oct 13, 2019Observed: 2.21 ft at 9:30AM Oct 13, 2019Observed: 2.21 ft at 9:45AM Oct 13, 2019Observed: 2.21 ft at 10:00AM Oct 13, 2019Observed: 2.21 ft at 10:15AM Oct 13, 2019Observed: 2.21 ft at 10:30AM Oct 13, 2019Observed: 2.21 ft at 10:45AM Oct 13, 2019Observed: 2.21 ft at 11:00AM Oct 13, 2019Observed: 2.21 ft at 11:15AM Oct 13, 2019Observed: 2.21 ft at 11:30AM Oct 13, 2019Observed: 2.21 ft at 11:45AM Oct 13, 2019Observed: 2.21 ft at 12:00PM Oct 13, 2019Observed: 2.21 ft at 12:15PM Oct 13, 2019Observed: 2.21 ft at 12:30PM Oct 13, 2019Observed: 2.21 ft at 12:45PM Oct 13, 2019Observed: 2.21 ft at 1:00PM Oct 13, 2019Observed: 2.21 ft at 1:15PM Oct 13, 2019Observed: 2.21 ft at 1:30PM Oct 13, 2019Observed: 2.21 ft at 1:45PM Oct 13, 2019Observed: 2.21 ft at 2:00PM Oct 13, 2019Observed: 2.21 ft at 2:15PM Oct 13, 2019Highest Observation: 2.24 ft at 2:30PM Oct 13, 2019Observed: 2.21 ft at 2:45PM Oct 13, 2019Observed: 2.21 ft at 3:00PM Oct 13, 2019Observed: 2.21 ft at 3:15PM Oct 13, 2019Observed: 2.21 ft at 3:30PM Oct 13, 2019Observed: 2.21 ft at 3:45PM Oct 13, 2019Observed: 2.21 ft at 4:00PM Oct 13, 2019Observed: 2.21 ft at 4:15PM Oct 13, 2019Observed: 2.21 ft at 4:30PM Oct 13, 2019Observed: 2.2 ft at 4:45PM Oct 13, 2019Observed: 2.21 ft at 5:00PM Oct 13, 2019Observed: 2.2 ft at 5:15PM Oct 13, 2019Observed: 2.21 ft at 5:30PM Oct 13, 2019Observed: 2.21 ft at 5:45PM Oct 13, 2019Observed: 2.21 ft at 6:00PM Oct 13, 2019Observed: 2.21 ft at 6:15PM Oct 13, 2019Observed: 2.21 ft at 6:30PM Oct 13, 2019Observed: 2.21 ft at 6:45PM Oct 13, 2019Observed: 2.2 ft at 7:00PM Oct 13, 2019Observed: 2.21 ft at 7:15PM Oct 13, 2019Observed: 2.21 ft at 7:30PM Oct 13, 2019Observed: 2.21 ft at 7:45PM Oct 13, 2019Observed: 2.21 ft at 8:00PM Oct 13, 2019Observed: 2.2 ft at 8:15PM Oct 13, 2019Observed: 2.21 ft at 8:30PM Oct 13, 2019Observed: 2.21 ft at 8:45PM Oct 13, 2019Observed: 2.21 ft at 9:00PM Oct 13, 2019Observed: 2.21 ft at 9:15PM Oct 13, 2019Observed: 2.21 ft at 9:30PM Oct 13, 2019Observed: 2.21 ft at 9:45PM Oct 13, 2019Observed: 2.2 ft at 10:00PM Oct 13, 2019Observed: 2.21 ft at 10:15PM Oct 13, 2019Observed: 2.21 ft at 10:30PM Oct 13, 2019Observed: 2.21 ft at 10:45PM Oct 13, 2019Observed: 2.21 ft at 11:00PM Oct 13, 2019Observed: 2.21 ft at 11:15PM Oct 13, 2019Observed: 2.21 ft at 11:30PM Oct 13, 2019Observed: 2.21 ft at 11:45PM Oct 13, 2019Observed: 2.21 ft at 12:00AM Oct 14, 2019Observed: 2.21 ft at 12:15AM Oct 14, 2019Observed: 2.21 ft at 12:30AM Oct 14, 2019Observed: 2.21 ft at 12:45AM Oct 14, 2019Observed: 2.21 ft at 1:00AM Oct 14, 2019Observed: 2.21 ft at 1:15AM Oct 14, 2019Observed: 2.21 ft at 1:30AM Oct 14, 2019Observed: 2.21 ft at 1:45AM Oct 14, 2019Observed: 2.21 ft at 2:00AM Oct 14, 2019Observed: 2.21 ft at 2:15AM Oct 14, 2019Observed: 2.21 ft at 2:30AM Oct 14, 2019Observed: 2.21 ft at 2:45AM Oct 14, 2019Observed: 2.21 ft at 3:00AM Oct 14, 2019Observed: 2.21 ft at 3:15AM Oct 14, 2019Observed: 2.22 ft at 3:30AM Oct 14, 2019Observed: 2.21 ft at 3:45AM Oct 14, 2019Observed: 2.21 ft at 4:00AM Oct 14, 2019Observed: 2.21 ft at 4:15AM Oct 14, 2019Observed: 2.22 ft at 4:30AM Oct 14, 2019Observed: 2.21 ft at 4:45AM Oct 14, 2019Observed: 2.22 ft at 5:00AM Oct 14, 2019Observed: 2.21 ft at 5:15AM Oct 14, 2019Observed: 2.21 ft at 5:30AM Oct 14, 2019Observed: 2.21 ft at 5:45AM Oct 14, 2019Observed: 2.21 ft at 6:00AM Oct 14, 2019Observed: 2.21 ft at 6:15AM Oct 14, 2019Observed: 2.21 ft at 6:30AM Oct 14, 2019Observed: 2.21 ft at 6:45AM Oct 14, 2019Observed: 2.22 ft at 7:00AM Oct 14, 2019Observed: 2.21 ft at 7:15AM Oct 14, 2019Observed: 2.21 ft at 7:30AM Oct 14, 2019Observed: 2.21 ft at 7:45AM Oct 14, 2019Observed: 2.22 ft at 8:00AM Oct 14, 2019Observed: 2.22 ft at 8:15AM Oct 14, 2019Observed: 2.22 ft at 8:30AM Oct 14, 2019Observed: 2.21 ft at 8:45AM Oct 14, 2019Observed: 2.22 ft at 9:00AM Oct 14, 2019Observed: 2.21 ft at 9:15AM Oct 14, 2019Observed: 2.22 ft at 9:30AM Oct 14, 2019Observed: 2.22 ft at 9:45AM Oct 14, 2019Observed: 2.21 ft at 10:00AM Oct 14, 2019Observed: 2.22 ft at 10:15AM Oct 14, 2019Observed: 2.22 ft at 10:30AM Oct 14, 2019Observed: 2.22 ft at 10:45AM Oct 14, 2019Observed: 2.21 ft at 11:00AM Oct 14, 2019Observed: 2.22 ft at 11:15AM Oct 14, 2019Observed: 2.22 ft at 11:30AM Oct 14, 2019Observed: 2.22 ft at 11:45AM Oct 14, 2019Observed: 2.22 ft at 12:00PM Oct 14, 2019Observed: 2.22 ft at 12:15PM Oct 14, 2019Observed: 2.22 ft at 12:30PM Oct 14, 2019Observed: 2.22 ft at 12:45PM Oct 14, 2019Observed: 2.22 ft at 1:00PM Oct 14, 2019Observed: 2.22 ft at 1:15PM Oct 14, 2019Observed: 2.22 ft at 1:30PM Oct 14, 2019Observed: 2.22 ft at 1:45PM Oct 14, 2019Observed: 2.21 ft at 2:00PM Oct 14, 2019Observed: 2.22 ft at 2:15PM Oct 14, 2019Observed: 2.22 ft at 2:30PM Oct 14, 2019Observed: 2.22 ft at 2:45PM Oct 14, 2019Observed: 2.22 ft at 3:00PM Oct 14, 2019Observed: 2.22 ft at 3:15PM Oct 14, 2019Observed: 2.22 ft at 3:30PM Oct 14, 2019Observed: 2.22 ft at 3:45PM Oct 14, 2019Observed: 2.22 ft at 4:00PM Oct 14, 2019Observed: 2.22 ft at 4:15PM Oct 14, 2019Observed: 2.22 ft at 4:30PM Oct 14, 2019Observed: 2.22 ft at 4:45PM Oct 14, 2019Observed: 2.22 ft at 5:00PM Oct 14, 2019Observed: 2.22 ft at 5:15PM Oct 14, 2019Observed: 2.22 ft at 5:30PM Oct 14, 2019Observed: 2.22 ft at 5:45PM Oct 14, 2019Observed: 2.22 ft at 6:00PM Oct 14, 2019Observed: 2.22 ft at 6:15PM Oct 14, 2019Observed: 2.22 ft at 6:30PM Oct 14, 2019Observed: 2.22 ft at 6:45PM Oct 14, 2019Observed: 2.22 ft at 7:00PM Oct 14, 2019Observed: 2.22 ft at 7:15PM Oct 14, 2019Observed: 2.22 ft at 7:30PM Oct 14, 2019Observed: 2.22 ft at 7:45PM Oct 14, 2019Observed: 2.22 ft at 8:00PM Oct 14, 2019Observed: 2.22 ft at 8:15PM Oct 14, 2019Observed: 2.22 ft at 8:30PM Oct 14, 2019Observed: 2.22 ft at 8:45PM Oct 14, 2019Observed: 2.22 ft at 9:00PM Oct 14, 2019Observed: 2.22 ft at 9:15PM Oct 14, 2019Observed: 2.22 ft at 9:30PM Oct 14, 2019Observed: 2.22 ft at 9:45PM Oct 14, 2019Observed: 2.22 ft at 10:00PM Oct 14, 2019Observed: 2.22 ft at 10:15PM Oct 14, 2019Observed: 2.22 ft at 10:30PM Oct 14, 2019Observed: 2.22 ft at 10:45PM Oct 14, 2019Observed: 2.22 ft at 11:00PM Oct 14, 2019Observed: 2.22 ft at 11:15PM Oct 14, 2019Observed: 2.22 ft at 11:30PM Oct 14, 2019Observed: 2.22 ft at 11:45PM Oct 14, 2019Observed: 2.22 ft at 12:00AM Oct 15, 2019Observed: 2.22 ft at 12:15AM Oct 15, 2019Observed: 2.22 ft at 12:30AM Oct 15, 2019Observed: 2.22 ft at 12:45AM Oct 15, 2019Observed: 2.22 ft at 1:00AM Oct 15, 2019Observed: 2.22 ft at 1:15AM Oct 15, 2019Observed: 2.22 ft at 1:30AM Oct 15, 2019Observed: 2.22 ft at 1:45AM Oct 15, 2019Observed: 2.22 ft at 2:00AM Oct 15, 2019Observed: 2.22 ft at 2:15AM Oct 15, 2019Observed: 2.22 ft at 2:30AM Oct 15, 2019Observed: 2.22 ft at 2:45AM Oct 15, 2019Observed: 2.22 ft at 3:00AM Oct 15, 2019Observed: 2.22 ft at 3:15AM Oct 15, 2019Observed: 2.22 ft at 3:30AM Oct 15, 2019Observed: 2.22 ft at 3:45AM Oct 15, 2019Observed: 2.22 ft at 4:00AM Oct 15, 2019Observed: 2.22 ft at 4:15AM Oct 15, 2019Observed: 2.22 ft at 4:30AM Oct 15, 2019Observed: 2.22 ft at 4:45AM Oct 15, 2019Observed: 2.22 ft at 5:00AM Oct 15, 2019Observed: 2.22 ft at 5:15AM Oct 15, 2019Observed: 2.22 ft at 5:30AM Oct 15, 2019Observed: 2.22 ft at 5:45AM Oct 15, 2019Observed: 2.22 ft at 6:00AM Oct 15, 2019Observed: 2.22 ft at 6:15AM Oct 15, 2019Observed: 2.22 ft at 6:30AM Oct 15, 2019Observed: 2.22 ft at 6:45AM Oct 15, 2019Observed: 2.22 ft at 7:00AM Oct 15, 2019Observed: 2.22 ft at 7:15AM Oct 15, 2019Observed: 2.22 ft at 7:30AM Oct 15, 2019Observed: 2.22 ft at 7:45AM Oct 15, 2019Observed: 2.22 ft at 8:00AM Oct 15, 2019Observed: 2.22 ft at 8:15AM Oct 15, 2019Observed: 2.22 ft at 8:30AM Oct 15, 2019Observed: 2.22 ft at 8:45AM Oct 15, 2019Observed: 2.22 ft at 9:00AM Oct 15, 2019Observed: 2.22 ft at 9:15AM Oct 15, 2019Observed: 2.22 ft at 9:30AM Oct 15, 2019Observed: 2.22 ft at 9:45AM Oct 15, 2019Observed: 2.22 ft at 10:00AM Oct 15, 2019Observed: 2.22 ft at 10:15AM Oct 15, 2019Observed: 2.22 ft at 10:30AM Oct 15, 2019Observed: 2.22 ft at 10:45AM Oct 15, 2019Observed: 2.22 ft at 11:00AM Oct 15, 2019Observed: 2.22 ft at 11:15AM Oct 15, 2019Observed: 2.22 ft at 11:30AM Oct 15, 2019Observed: 2.22 ft at 11:45AM Oct 15, 2019Observed: 2.22 ft at 12:00PM Oct 15, 2019Observed: 2.22 ft at 12:15PM Oct 15, 2019Observed: 2.22 ft at 12:30PM Oct 15, 2019Observed: 2.22 ft at 12:45PM Oct 15, 2019Observed: 2.22 ft at 1:00PM Oct 15, 2019Observed: 2.21 ft at 1:15PM Oct 15, 2019Observed: 2.21 ft at 1:30PM Oct 15, 2019Observed: 2.22 ft at 1:45PM Oct 15, 2019Observed: 2.22 ft at 2:00PM Oct 15, 2019Highest Forecast: 2.8 ft 3:00PM Oct 15, 2019Highest Forecast: 2.8 ft 4:00PM Oct 15, 2019Highest Forecast: 2.8 ft 5:00PM Oct 15, 2019Highest Forecast: 2.8 ft 6:00PM Oct 15, 2019Highest Forecast: 2.8 ft 7:00PM Oct 15, 2019Highest Forecast: 2.8 ft 8:00PM Oct 15, 2019Highest Forecast: 2.8 ft 9:00PM Oct 15, 2019Highest Forecast: 2.8 ft 10:00PM Oct 15, 2019Highest Forecast: 2.8 ft 11:00PM Oct 15, 2019Highest Forecast: 2.8 ft 12:00AM Oct 16, 2019Highest Forecast: 2.8 ft 1:00AM Oct 16, 2019Highest Forecast: 2.8 ft 2:00AM Oct 16, 2019Highest Forecast: 2.8 ft 3:00AM Oct 16, 2019Highest Forecast: 2.8 ft 4:00AM Oct 16, 2019Highest Forecast: 2.8 ft 5:00AM Oct 16, 2019Highest Forecast: 2.8 ft 6:00AM Oct 16, 2019Highest Forecast: 2.8 ft 7:00AM Oct 16, 2019Highest Forecast: 2.8 ft 8:00AM Oct 16, 2019Highest Forecast: 2.8 ft 9:00AM Oct 16, 2019Highest Forecast: 2.8 ft 10:00AM Oct 16, 2019Highest Forecast: 2.8 ft 11:00AM Oct 16, 2019Highest Forecast: 2.8 ft 12:00PM Oct 16, 2019Highest Forecast: 2.8 ft 1:00PM Oct 16, 2019Highest Forecast: 2.8 ft 2:00PM Oct 16, 2019Highest Forecast: 2.8 ft 3:00PM Oct 16, 2019Highest Forecast: 2.8 ft 4:00PM Oct 16, 2019Highest Forecast: 2.8 ft 5:00PM Oct 16, 2019Highest Forecast: 2.8 ft 6:00PM Oct 16, 2019Highest Forecast: 2.8 ft 7:00PM Oct 16, 2019Highest Forecast: 2.8 ft 8:00PM Oct 16, 2019Highest Forecast: 2.8 ft 9:00PM Oct 16, 2019Highest Forecast: 2.8 ft 10:00PM Oct 16, 2019Highest Forecast: 2.8 ft 11:00PM Oct 16, 2019Highest Forecast: 2.8 ft 12:00AM Oct 17, 2019Highest Forecast: 2.8 ft 1:00AM Oct 17, 2019Highest Forecast: 2.8 ft 2:00AM Oct 17, 2019Highest Forecast: 2.8 ft 3:00AM Oct 17, 2019Highest Forecast: 2.8 ft 4:00AM Oct 17, 2019Highest Forecast: 2.8 ft 5:00AM Oct 17, 2019Highest Forecast: 2.8 ft 6:00AM Oct 17, 2019Highest Forecast: 2.8 ft 7:00AM Oct 17, 2019Highest Forecast: 2.8 ft 8:00AM Oct 17, 2019Highest Forecast: 2.8 ft 9:00AM Oct 17, 2019Highest Forecast: 2.8 ft 10:00AM Oct 17, 2019Highest Forecast: 2.8 ft 11:00AM Oct 17, 2019Highest Forecast: 2.8 ft 12:00PM Oct 17, 2019Highest Forecast: 2.8 ft 1:00PM Oct 17, 2019Highest Forecast: 2.8 ft 2:00PM Oct 17, 2019Highest Forecast: 2.8 ft 3:00PM Oct 17, 2019Highest Forecast: 2.8 ft 4:00PM Oct 17, 2019Highest Forecast: 2.8 ft 5:00PM Oct 17, 2019Highest Forecast: 2.8 ft 6:00PM Oct 17, 2019Highest Forecast: 2.8 ft 7:00PM Oct 17, 2019Highest Forecast: 2.8 ft 8:00PM Oct 17, 2019Highest Forecast: 2.8 ft 9:00PM Oct 17, 2019Highest Forecast: 2.8 ft 10:00PM Oct 17, 2019Highest Forecast: 2.8 ft 11:00PM Oct 17, 2019Highest Forecast: 2.8 ft 12:00AM Oct 18, 2019Highest Forecast: 2.8 ft 1:00AM Oct 18, 2019Highest Forecast: 2.8 ft 2:00AM Oct 18, 2019Highest Forecast: 2.8 ft 3:00AM Oct 18, 2019Highest Forecast: 2.8 ft 4:00AM Oct 18, 2019Highest Forecast: 2.8 ft 5:00AM Oct 18, 2019Highest Forecast: 2.8 ft 6:00AM Oct 18, 2019Highest Forecast: 2.8 ft 7:00AM Oct 18, 2019Highest Forecast: 2.8 ft 8:00AM Oct 18, 2019Highest Forecast: 2.8 ft 9:00AM Oct 18, 2019Highest Forecast: 2.8 ft 10:00AM Oct 18, 2019Highest Forecast: 2.8 ft 11:00AM Oct 18, 2019Highest Forecast: 2.8 ft 12:00PM Oct 18, 2019Highest Forecast: 2.8 ft 1:00PM Oct 18, 2019Highest Forecast: 2.8 ft 2:00PM Oct 18, 2019Highest Forecast: 2.8 ft 3:00PM Oct 18, 2019Highest Forecast: 2.8 ft 4:00PM Oct 18, 2019Highest Forecast: 2.8 ft 5:00PM Oct 18, 2019Highest Forecast: 2.8 ft 6:00PM Oct 18, 2019Highest Forecast: 2.8 ft 7:00PM Oct 18, 2019Highest Forecast: 2.8 ft 8:00PM Oct 18, 2019Highest Forecast: 2.8 ft 9:00PM Oct 18, 2019Highest Forecast: 2.8 ft 10:00PM Oct 18, 2019Highest Forecast: 2.8 ft 11:00PM Oct 18, 2019Highest Forecast: 2.8 ft 12:00AM Oct 19, 2019Highest Forecast: 2.8 ft 1:00AM Oct 19, 2019Highest Forecast: 2.8 ft 2:00AM Oct 19, 2019Highest Forecast: 2.8 ft 3:00AM Oct 19, 2019Highest Forecast: 2.8 ft 4:00AM Oct 19, 2019Highest Forecast: 2.8 ft 5:00AM Oct 19, 2019Highest Forecast: 2.8 ft 6:00AM Oct 19, 2019Highest Forecast: 2.8 ft 7:00AM Oct 19, 2019Highest Forecast: 2.8 ft 8:00AM Oct 19, 2019Highest Forecast: 2.8 ft 9:00AM Oct 19, 2019Highest Forecast: 2.8 ft 10:00AM Oct 19, 2019Highest Forecast: 2.8 ft 11:00AM Oct 19, 2019Highest Forecast: 2.8 ft 12:00PM Oct 19, 2019Highest Forecast: 2.8 ft 1:00PM Oct 19, 2019Highest Forecast: 2.8 ft 2:00PM Oct 19, 2019Highest Forecast: 2.8 ft 3:00PM Oct 19, 2019Highest Forecast: 2.8 ft 4:00PM Oct 19, 2019Highest Forecast: 2.8 ft 5:00PM Oct 19, 2019Highest Forecast: 2.8 ft 6:00PM Oct 19, 2019Highest Forecast: 2.8 ft 7:00PM Oct 19, 2019Highest Forecast: 2.8 ft 8:00PM Oct 19, 2019Highest Forecast: 2.8 ft 9:00PM Oct 19, 2019Highest Forecast: 2.8 ft 10:00PM Oct 19, 2019Highest Forecast: 2.8 ft 11:00PM Oct 19, 2019Highest Forecast: 2.8 ft 12:00AM Oct 20, 2019Highest Forecast: 2.8 ft 1:00AM Oct 20, 2019Highest Forecast: 2.8 ft 2:00AM Oct 20, 2019Highest Forecast: 2.8 ft 3:00AM Oct 20, 2019Highest Forecast: 2.8 ft 4:00AM Oct 20, 2019Highest Forecast: 2.8 ft 5:00AM Oct 20, 2019USGS--Water Resources of the United StatesAPCC1(plotting HGIRG) Graph Created (2:15PM Oct 15, 2019)ObservedForecast (issued 7:33AM Oct 15)Latest observed value: 2.22 ft at 2:00 PM PDT 15-Oct-2019. Flood Stage is 25 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Napa River near Napa are issued routinely year-round.
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Upstream Gauge - near St. Helena Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 26
Flood Stage: 25
Action Stage: 22
Low Stage (in feet): 0

Historic Crests
(1) 30.50 ft on 03/09/1995
(2) 30.20 ft on 02/18/1986
(3) 29.85 ft on 12/31/2005
(4) 28.07 ft on 01/01/1997
(5) 27.59 ft on 01/31/1963
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 29.85 ft on 12/31/2005
(2) 23.32 ft on 02/18/2004
(3) 26.47 ft on 12/16/2002
(4) 26.72 ft on 02/03/1998
(5) 28.07 ft on 01/01/1997
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:13
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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
32 Disastrous flooding. Widespread flooding occurs in the entire Napa Valley, with transportation impossible. Disastrous damage to homes and businesses in the Napa Valley, especially in the City of Napa.
30 In the City of Napa, flooding in the south oxbow area expands south towards Tulocay Creek and Imola Avenue begins to flood on both sides of the river. Major flooding continues in the Napa Valley, with major damage to homes and businesses, especially in Napa. Transportation impossible in the Napa Valley. 20,000 acres possibly flooded in the Napa Valley. Between 5,000 and 7,000 evacuations occurred in the 2/18/86 record flood, 37,000 cfs, 30.20 feet.
29 In the City of Napa, the Soscol corridor between the bypass and Lakepark in inundated, and the Lakepark area begins to flood and flow begins to leave the Napa River at Riverside Drive.
28 Major flooding. In the City of Napa, significant flooding occurs near Lincoln Avenue with some secondary roads inundated. Major flooding of towns within the reach of the gage, especially in Napa. Inundation of agricultural land and major damage from bank erosion and sediment deposition in Napa Valley. Transportation difficult throughout the Napa Valley. The 1/1/1997 flood measured 28.07 feet and cut off east-west travel except at Highway 29 over the Napa River.
27 In the City of Napa, moderate flooding begins on the east side of Napa River near Milliken Creek Inn.
26 Moderate flooding. In the City of Napa, flow begins to leave the Napa River channel in the South Coombs area (north of Imola Avenue) and the south oxbow (near Taylor Street). Crop losses and erosion damage become serious. Moderate flood damage in lower parts of urban areas along the reach. Transportation in the Napa Valley becoming difficult. The flood of 2/3/1998 measured 26.72 feet.
25 Flood Stage. Flooding of lowest parts of towns in reach begins. Inundation of lowest agricultural land in Napa Valley. Some secondary roads are inundated. Moderate damage from bank erosion and sediment deposition throughout the reach.
24 In the City of Napa, flow begins to leave the Napa River channel at Riverpointe (north of Lincoln Avenue).
22 Monitor Stage. In the City of Napa, the Napa River Dry Bypass is fully inundated and flow begins to cross McKinstry Street.
20 Erosion of lowest agricultural areas along river begins.
About This Location Collapse

Latitude: 38.367778° N, Longitude: 122.302222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 25 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 24.75 ft 49.75 ft 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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Collaborative Agencies Collapse
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
National Weather Service
San Francisco Bay Area Weather Forecast Office
21 Grace Hopper Ave, Stop 5
Monterey, CA 93943-5505
(831) 656-1725
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Page last modified: 1-Mar-2019 12:32 AM
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