Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 



Hydrograph River at a Glance Download
San Andreas Lake near Millbrae Pool (ft)Flow (kcfs)Highest Observation: 438.24 ft at 11:15AM May 17, 2022Observed: 438.23 ft at 11:30AM May 17, 2022Observed: 438.23 ft at 11:45AM May 17, 2022Observed: 438.23 ft at 12:00PM May 17, 2022Observed: 438.22 ft at 12:15PM May 17, 2022Observed: 438.22 ft at 12:30PM May 17, 2022Observed: 438.22 ft at 12:45PM May 17, 2022Observed: 438.21 ft at 1:00PM May 17, 2022Observed: 438.21 ft at 1:15PM May 17, 2022Observed: 438.2 ft at 1:30PM May 17, 2022Observed: 438.2 ft at 1:45PM May 17, 2022Observed: 438.2 ft at 2:00PM May 17, 2022Observed: 438.2 ft at 2:15PM May 17, 2022Observed: 438.2 ft at 2:30PM May 17, 2022Observed: 438.2 ft at 2:45PM May 17, 2022Observed: 438.2 ft at 3:00PM May 17, 2022Observed: 438.2 ft at 3:15PM May 17, 2022Observed: 438.19 ft at 3:30PM May 17, 2022Observed: 438.19 ft at 3:45PM May 17, 2022Observed: 438.18 ft at 4:00PM May 17, 2022Observed: 438.17 ft at 4:15PM May 17, 2022Observed: 438.16 ft at 4:30PM May 17, 2022Observed: 438.16 ft at 4:45PM May 17, 2022Observed: 438.19 ft at 5:00PM May 17, 2022Observed: 438.19 ft at 5:15PM May 17, 2022Observed: 438.15 ft at 5:30PM May 17, 2022Observed: 438.14 ft at 5:45PM May 17, 2022Observed: 438.14 ft at 6:00PM May 17, 2022Observed: 438.14 ft at 6:15PM May 17, 2022Observed: 438.17 ft at 6:30PM May 17, 2022Observed: 438.18 ft at 6:45PM May 17, 2022Observed: 438.19 ft at 7:00PM May 17, 2022Observed: 438.16 ft at 7:15PM May 17, 2022Observed: 438.16 ft at 7:30PM May 17, 2022Observed: 438.15 ft at 7:45PM May 17, 2022Observed: 438.15 ft at 8:00PM May 17, 2022Observed: 438.15 ft at 8:15PM May 17, 2022Observed: 438.14 ft at 8:30PM May 17, 2022Observed: 438.13 ft at 8:45PM May 17, 2022Observed: 438.13 ft at 9:00PM May 17, 2022Observed: 438.12 ft at 9:15PM May 17, 2022Observed: 438.12 ft at 9:30PM May 17, 2022Observed: 438.12 ft at 9:45PM May 17, 2022Observed: 438.11 ft at 10:00PM May 17, 2022Observed: 438.12 ft at 10:15PM May 17, 2022Observed: 438.12 ft at 10:30PM May 17, 2022Observed: 438.11 ft at 10:45PM May 17, 2022Observed: 438.11 ft at 11:00PM May 17, 2022Observed: 438.1 ft at 11:15PM May 17, 2022Observed: 438.09 ft at 11:30PM May 17, 2022Observed: 438.08 ft at 11:45PM May 17, 2022Observed: 438.09 ft at 12:00AM May 18, 2022Observed: 438.08 ft at 12:15AM May 18, 2022Observed: 438.09 ft at 12:30AM May 18, 2022Observed: 438.09 ft at 12:45AM May 18, 2022Observed: 438.09 ft at 1:00AM May 18, 2022Observed: 438.09 ft at 1:15AM May 18, 2022Observed: 438.09 ft at 1:30AM May 18, 2022Observed: 438.08 ft at 1:45AM May 18, 2022Observed: 438.08 ft at 2:00AM May 18, 2022Observed: 438.08 ft at 2:15AM May 18, 2022Observed: 438.08 ft at 2:30AM May 18, 2022Observed: 438.08 ft at 2:45AM May 18, 2022Observed: 438.08 ft at 3:00AM May 18, 2022Observed: 438.07 ft at 3:15AM May 18, 2022Observed: 438.07 ft at 3:30AM May 18, 2022Observed: 438.07 ft at 3:45AM May 18, 2022Observed: 438.06 ft at 4:00AM May 18, 2022Observed: 438.06 ft at 4:15AM May 18, 2022Observed: 438.05 ft at 4:30AM May 18, 2022Observed: 438.05 ft at 4:45AM May 18, 2022Observed: 438.06 ft at 5:00AM May 18, 2022Observed: 438.05 ft at 5:15AM May 18, 2022Observed: 438.05 ft at 5:30AM May 18, 2022Observed: 438.04 ft at 5:45AM May 18, 2022Observed: 438.04 ft at 6:00AM May 18, 2022Observed: 438.03 ft at 6:15AM May 18, 2022Observed: 438.03 ft at 6:30AM May 18, 2022Observed: 438.03 ft at 6:45AM May 18, 2022Observed: 438.03 ft at 7:00AM May 18, 2022Observed: 438.03 ft at 7:15AM May 18, 2022Observed: 438.03 ft at 7:30AM May 18, 2022Observed: 438.03 ft at 7:45AM May 18, 2022Observed: 438.02 ft at 8:00AM May 18, 2022Observed: 438.02 ft at 8:15AM May 18, 2022Observed: 438.01 ft at 8:30AM May 18, 2022Observed: 438.01 ft at 8:45AM May 18, 2022Observed: 438.01 ft at 9:00AM May 18, 2022Observed: 438.01 ft at 9:15AM May 18, 2022Observed: 438.01 ft at 9:30AM May 18, 2022Observed: 438.01 ft at 9:45AM May 18, 2022Observed: 438.01 ft at 10:00AM May 18, 2022Observed: 438 ft at 10:15AM May 18, 2022Observed: 438 ft at 10:30AM May 18, 2022Observed: 438 ft at 10:45AM May 18, 2022Observed: 437.99 ft at 11:00AM May 18, 2022Observed: 437.99 ft at 11:15AM May 18, 2022Observed: 437.99 ft at 11:30AM May 18, 2022Observed: 437.99 ft at 11:45AM May 18, 2022Observed: 437.98 ft at 12:00PM May 18, 2022Observed: 437.98 ft at 12:15PM May 18, 2022Observed: 437.97 ft at 12:30PM May 18, 2022Observed: 437.97 ft at 12:45PM May 18, 2022Observed: 437.97 ft at 1:00PM May 18, 2022Observed: 437.98 ft at 1:15PM May 18, 2022Observed: 437.98 ft at 1:30PM May 18, 2022Observed: 437.98 ft at 1:45PM May 18, 2022Observed: 437.97 ft at 2:00PM May 18, 2022Observed: 437.97 ft at 2:15PM May 18, 2022Observed: 437.96 ft at 2:30PM May 18, 2022Observed: 437.95 ft at 2:45PM May 18, 2022Observed: 437.94 ft at 3:00PM May 18, 2022Observed: 437.94 ft at 3:15PM May 18, 2022Observed: 437.94 ft at 3:30PM May 18, 2022Observed: 437.95 ft at 3:45PM May 18, 2022Observed: 437.95 ft at 4:00PM May 18, 2022Observed: 437.95 ft at 4:15PM May 18, 2022Observed: 437.95 ft at 4:30PM May 18, 2022Observed: 437.93 ft at 4:45PM May 18, 2022Observed: 437.93 ft at 5:00PM May 18, 2022Observed: 437.93 ft at 5:15PM May 18, 2022Observed: 437.95 ft at 5:30PM May 18, 2022Observed: 437.95 ft at 5:45PM May 18, 2022Observed: 437.95 ft at 6:00PM May 18, 2022Observed: 437.94 ft at 6:15PM May 18, 2022Observed: 437.93 ft at 6:30PM May 18, 2022Observed: 437.93 ft at 6:45PM May 18, 2022Observed: 437.9 ft at 7:00PM May 18, 2022Observed: 437.89 ft at 7:15PM May 18, 2022Observed: 437.88 ft at 7:30PM May 18, 2022Observed: 437.89 ft at 7:45PM May 18, 2022Observed: 437.9 ft at 8:00PM May 18, 2022Observed: 437.9 ft at 8:15PM May 18, 2022Observed: 437.91 ft at 8:30PM May 18, 2022Observed: 437.9 ft at 8:45PM May 18, 2022Observed: 437.9 ft at 9:00PM May 18, 2022Observed: 437.9 ft at 9:15PM May 18, 2022Observed: 437.9 ft at 9:30PM May 18, 2022Observed: 437.9 ft at 9:45PM May 18, 2022Observed: 437.89 ft at 10:00PM May 18, 2022Observed: 437.89 ft at 10:15PM May 18, 2022Observed: 437.9 ft at 10:30PM May 18, 2022Observed: 437.89 ft at 10:45PM May 18, 2022Observed: 437.88 ft at 11:00PM May 18, 2022Observed: 437.88 ft at 11:15PM May 18, 2022Observed: 437.87 ft at 11:30PM May 18, 2022Observed: 437.87 ft at 11:45PM May 18, 2022Observed: 437.87 ft at 12:00AM May 19, 2022Observed: 437.86 ft at 12:15AM May 19, 2022Observed: 437.86 ft at 12:30AM May 19, 2022Observed: 437.86 ft at 12:45AM May 19, 2022Observed: 437.86 ft at 1:00AM May 19, 2022Observed: 437.86 ft at 1:15AM May 19, 2022Observed: 437.86 ft at 1:30AM May 19, 2022Observed: 437.85 ft at 1:45AM May 19, 2022Observed: 437.85 ft at 2:00AM May 19, 2022Observed: 437.85 ft at 2:15AM May 19, 2022Observed: 437.84 ft at 2:30AM May 19, 2022Observed: 437.84 ft at 2:45AM May 19, 2022Observed: 437.83 ft at 3:00AM May 19, 2022Observed: 437.83 ft at 3:15AM May 19, 2022Observed: 437.83 ft at 3:30AM May 19, 2022Observed: 437.83 ft at 3:45AM May 19, 2022Observed: 437.83 ft at 4:00AM May 19, 2022Observed: 437.83 ft at 4:15AM May 19, 2022Observed: 437.82 ft at 4:30AM May 19, 2022Observed: 437.81 ft at 4:45AM May 19, 2022Observed: 437.8 ft at 5:00AM May 19, 2022Observed: 437.8 ft at 5:15AM May 19, 2022Observed: 437.8 ft at 5:30AM May 19, 2022Observed: 437.8 ft at 5:45AM May 19, 2022Observed: 437.8 ft at 6:00AM May 19, 2022Observed: 437.8 ft at 6:15AM May 19, 2022Observed: 437.8 ft at 6:30AM May 19, 2022Observed: 437.79 ft at 6:45AM May 19, 2022Observed: 437.78 ft at 7:00AM May 19, 2022Observed: 437.78 ft at 7:15AM May 19, 2022Observed: 437.77 ft at 7:30AM May 19, 2022Observed: 437.77 ft at 7:45AM May 19, 2022Observed: 437.77 ft at 8:00AM May 19, 2022Observed: 437.77 ft at 8:15AM May 19, 2022Observed: 437.77 ft at 8:30AM May 19, 2022Observed: 437.77 ft at 8:45AM May 19, 2022Observed: 437.77 ft at 9:00AM May 19, 2022Observed: 437.77 ft at 9:15AM May 19, 2022Observed: 437.77 ft at 9:30AM May 19, 2022Observed: 437.76 ft at 9:45AM May 19, 2022Observed: 437.77 ft at 10:00AM May 19, 2022Observed: 437.77 ft at 10:15AM May 19, 2022Observed: 437.77 ft at 10:30AM May 19, 2022Observed: 437.77 ft at 10:45AM May 19, 2022Observed: 437.77 ft at 11:00AM May 19, 2022Observed: 436.43 ft at 11:15AM May 19, 2022Observed: 436.43 ft at 11:30AM May 19, 2022Observed: 437.56 ft at 11:45AM May 19, 2022Observed: 437.76 ft at 12:00PM May 19, 2022Observed: 437.76 ft at 12:15PM May 19, 2022Observed: 437.75 ft at 12:30PM May 19, 2022Observed: 437.75 ft at 12:45PM May 19, 2022Observed: 437.74 ft at 1:00PM May 19, 2022Observed: 437.74 ft at 1:15PM May 19, 2022Observed: 437.75 ft at 1:30PM May 19, 2022Observed: 437.75 ft at 1:45PM May 19, 2022Observed: 437.75 ft at 2:00PM May 19, 2022Observed: 437.76 ft at 2:15PM May 19, 2022Observed: 437.76 ft at 2:30PM May 19, 2022Observed: 437.75 ft at 2:45PM May 19, 2022Observed: 437.73 ft at 3:00PM May 19, 2022Observed: 437.72 ft at 3:15PM May 19, 2022Observed: 437.72 ft at 3:30PM May 19, 2022Observed: 437.75 ft at 3:45PM May 19, 2022Observed: 437.76 ft at 4:00PM May 19, 2022Observed: 437.77 ft at 4:15PM May 19, 2022Observed: 437.76 ft at 4:30PM May 19, 2022Observed: 437.69 ft at 4:45PM May 19, 2022Observed: 437.68 ft at 5:00PM May 19, 2022Observed: 437.67 ft at 5:15PM May 19, 2022Observed: 437.67 ft at 5:30PM May 19, 2022Observed: 437.67 ft at 5:45PM May 19, 2022Observed: 437.68 ft at 6:00PM May 19, 2022Observed: 437.69 ft at 6:15PM May 19, 2022Observed: 437.71 ft at 6:30PM May 19, 2022Observed: 437.7 ft at 6:45PM May 19, 2022Observed: 437.7 ft at 7:00PM May 19, 2022Observed: 437.66 ft at 7:15PM May 19, 2022Observed: 437.65 ft at 7:30PM May 19, 2022Observed: 437.64 ft at 7:45PM May 19, 2022Observed: 437.65 ft at 8:00PM May 19, 2022Observed: 437.66 ft at 8:15PM May 19, 2022Observed: 437.67 ft at 8:30PM May 19, 2022Observed: 437.68 ft at 8:45PM May 19, 2022Observed: 437.7 ft at 9:00PM May 19, 2022Observed: 437.7 ft at 9:15PM May 19, 2022Observed: 437.69 ft at 9:30PM May 19, 2022Observed: 437.65 ft at 9:45PM May 19, 2022Observed: 437.63 ft at 10:00PM May 19, 2022Observed: 437.62 ft at 10:15PM May 19, 2022Observed: 437.62 ft at 10:30PM May 19, 2022Observed: 437.63 ft at 10:45PM May 19, 2022Observed: 437.64 ft at 11:00PM May 19, 2022Observed: 437.64 ft at 11:15PM May 19, 2022Observed: 437.65 ft at 11:30PM May 19, 2022Observed: 437.65 ft at 11:45PM May 19, 2022Observed: 437.64 ft at 12:00AM May 20, 2022Observed: 437.63 ft at 12:15AM May 20, 2022Observed: 437.62 ft at 12:30AM May 20, 2022Observed: 437.61 ft at 12:45AM May 20, 2022Observed: 437.6 ft at 1:00AM May 20, 2022Observed: 437.6 ft at 1:15AM May 20, 2022Observed: 437.6 ft at 1:30AM May 20, 2022Observed: 437.61 ft at 1:45AM May 20, 2022Observed: 437.62 ft at 2:00AM May 20, 2022Observed: 437.62 ft at 2:15AM May 20, 2022Observed: 437.62 ft at 2:30AM May 20, 2022Observed: 437.62 ft at 2:45AM May 20, 2022Observed: 437.61 ft at 3:00AM May 20, 2022Observed: 437.61 ft at 3:15AM May 20, 2022Observed: 437.6 ft at 3:30AM May 20, 2022Observed: 437.59 ft at 3:45AM May 20, 2022Observed: 437.59 ft at 4:00AM May 20, 2022Observed: 437.59 ft at 4:15AM May 20, 2022Observed: 437.59 ft at 4:30AM May 20, 2022Observed: 437.59 ft at 4:45AM May 20, 2022Observed: 437.59 ft at 5:00AM May 20, 2022Observed: 437.59 ft at 5:15AM May 20, 2022Observed: 437.58 ft at 5:30AM May 20, 2022Observed: 437.58 ft at 5:45AM May 20, 2022Observed: 437.57 ft at 6:00AM May 20, 2022Observed: 437.57 ft at 6:15AM May 20, 2022Observed: 437.57 ft at 6:30AM May 20, 2022Observed: 437.56 ft at 6:45AM May 20, 2022Observed: 437.56 ft at 7:00AM May 20, 2022Observed: 437.56 ft at 7:15AM May 20, 2022Observed: 437.56 ft at 7:30AM May 20, 2022Observed: 437.56 ft at 7:45AM May 20, 2022Observed: 437.55 ft at 8:00AM May 20, 2022Observed: 437.55 ft at 8:15AM May 20, 2022Observed: 437.55 ft at 8:30AM May 20, 2022Observed: 437.54 ft at 8:45AM May 20, 2022Observed: 437.54 ft at 9:00AM May 20, 2022Observed: 437.54 ft at 9:15AM May 20, 2022Observed: 437.54 ft at 9:30AM May 20, 2022Observed: 437.54 ft at 9:45AM May 20, 2022Observed: 437.54 ft at 10:00AM May 20, 2022Observed: 437.54 ft at 10:15AM May 20, 2022Observed: 437.53 ft at 10:30AM May 20, 2022Observed: 437.53 ft at 10:45AM May 20, 2022Observed: 437.53 ft at 11:00AM May 20, 2022Observed: 437.53 ft at 11:15AM May 20, 2022Observed: 437.52 ft at 11:30AM May 20, 2022Observed: 437.52 ft at 11:45AM May 20, 2022Observed: 437.52 ft at 12:00PM May 20, 2022Observed: 437.52 ft at 12:15PM May 20, 2022Observed: 437.52 ft at 12:30PM May 20, 2022Observed: 437.52 ft at 12:45PM May 20, 2022Observed: 437.51 ft at 1:00PM May 20, 2022Observed: 437.51 ft at 1:15PM May 20, 2022Observed: 437.5 ft at 1:30PM May 20, 2022Observed: 437.5 ft at 1:45PM May 20, 2022Observed: 437.5 ft at 2:00PM May 20, 2022Observed: 437.5 ft at 2:15PM May 20, 2022Observed: 437.5 ft at 2:30PM May 20, 2022Observed: 437.5 ft at 2:45PM May 20, 2022Observed: 437.5 ft at 3:00PM May 20, 2022Observed: 437.49 ft at 3:15PM May 20, 2022Observed: 437.48 ft at 3:30PM May 20, 2022Observed: 437.48 ft at 3:45PM May 20, 2022Observed: 437.48 ft at 4:00PM May 20, 2022Observed: 437.47 ft at 4:15PM May 20, 2022Observed: 437.47 ft at 4:30PM May 20, 2022Observed: 437.47 ft at 4:45PM May 20, 2022Observed: 437.48 ft at 5:00PM May 20, 2022Observed: 437.48 ft at 5:15PM May 20, 2022Observed: 437.48 ft at 5:30PM May 20, 2022Observed: 437.47 ft at 5:45PM May 20, 2022Observed: 437.46 ft at 6:00PM May 20, 2022Observed: 437.45 ft at 6:15PM May 20, 2022Observed: 437.44 ft at 6:30PM May 20, 2022Observed: 437.45 ft at 6:45PM May 20, 2022Observed: 437.42 ft at 9:00PM May 20, 2022Observed: 437.42 ft at 9:15PM May 20, 2022Observed: 437.42 ft at 9:30PM May 20, 2022Observed: 437.42 ft at 9:45PM May 20, 2022Observed: 437.42 ft at 10:00PM May 20, 2022Observed: 437.41 ft at 10:15PM May 20, 2022Observed: 437.41 ft at 10:30PM May 20, 2022Observed: 437.4 ft at 10:45PM May 20, 2022Observed: 437.4 ft at 11:00PM May 20, 2022Observed: 437.39 ft at 11:15PM May 20, 2022Observed: 437.39 ft at 11:30PM May 20, 2022Observed: 437.38 ft at 11:45PM May 20, 2022Observed: 437.38 ft at 12:00AM May 21, 2022Observed: 437.39 ft at 12:15AM May 21, 2022Observed: 437.39 ft at 12:30AM May 21, 2022Observed: 437.39 ft at 12:45AM May 21, 2022Observed: 437.39 ft at 1:00AM May 21, 2022Observed: 437.39 ft at 1:15AM May 21, 2022Observed: 437.38 ft at 1:30AM May 21, 2022Observed: 437.37 ft at 1:45AM May 21, 2022Observed: 437.37 ft at 2:00AM May 21, 2022Observed: 437.36 ft at 2:15AM May 21, 2022Observed: 437.36 ft at 2:30AM May 21, 2022Observed: 437.36 ft at 2:45AM May 21, 2022Observed: 437.37 ft at 3:00AM May 21, 2022Observed: 437.37 ft at 3:15AM May 21, 2022Observed: 437.36 ft at 3:30AM May 21, 2022Observed: 437.36 ft at 3:45AM May 21, 2022Observed: 437.35 ft at 4:00AM May 21, 2022Observed: 437.34 ft at 4:15AM May 21, 2022Observed: 437.34 ft at 4:30AM May 21, 2022Observed: 437.34 ft at 4:45AM May 21, 2022Observed: 437.34 ft at 5:00AM May 21, 2022Observed: 437.34 ft at 5:15AM May 21, 2022Observed: 437.34 ft at 5:30AM May 21, 2022Observed: 437.34 ft at 5:45AM May 21, 2022Observed: 437.34 ft at 6:00AM May 21, 2022Observed: 437.33 ft at 6:15AM May 21, 2022Observed: 437.33 ft at 6:30AM May 21, 2022Observed: 437.33 ft at 6:45AM May 21, 2022Observed: 437.33 ft at 7:00AM May 21, 2022Observed: 437.33 ft at 7:15AM May 21, 2022Observed: 437.33 ft at 7:30AM May 21, 2022Observed: 437.33 ft at 7:45AM May 21, 2022Observed: 437.33 ft at 8:00AM May 21, 2022Observed: 437.33 ft at 8:15AM May 21, 2022Observed: 437.32 ft at 8:30AM May 21, 2022Observed: 437.31 ft at 8:45AM May 21, 2022Observed: 437.31 ft at 9:00AM May 21, 2022Observed: 437.31 ft at 9:15AM May 21, 2022Observed: 437.3 ft at 9:30AM May 21, 2022Observed: 437.3 ft at 9:45AM May 21, 2022Observed: 437.3 ft at 10:00AM May 21, 2022Observed: 437.3 ft at 10:15AM May 21, 2022Observed: 437.3 ft at 10:30AM May 21, 2022Observed: 437.3 ft at 10:45AM May 21, 2022Observed: 437.29 ft at 11:00AM May 21, 2022Observed: 437.29 ft at 11:15AM May 21, 2022Observed: 437.28 ft at 11:30AM May 21, 2022Observed: 437.28 ft at 11:45AM May 21, 2022Observed: 437.28 ft at 12:00PM May 21, 2022Observed: 437.28 ft at 12:15PM May 21, 2022Observed: 437.28 ft at 12:30PM May 21, 2022Observed: 437.28 ft at 12:45PM May 21, 2022Observed: 437.28 ft at 1:00PM May 21, 2022Observed: 437.28 ft at 1:15PM May 21, 2022Observed: 437.28 ft at 1:30PM May 21, 2022Observed: 437.27 ft at 1:45PM May 21, 2022Observed: 437.27 ft at 2:00PM May 21, 2022Observed: 437.26 ft at 2:15PM May 21, 2022Observed: 437.26 ft at 2:30PM May 21, 2022Observed: 437.25 ft at 2:45PM May 21, 2022Observed: 437.25 ft at 3:00PM May 21, 2022Observed: 437.25 ft at 3:15PM May 21, 2022Observed: 437.25 ft at 3:30PM May 21, 2022Observed: 437.24 ft at 3:45PM May 21, 2022Observed: 437.23 ft at 4:00PM May 21, 2022Observed: 437.23 ft at 4:15PM May 21, 2022Observed: 437.23 ft at 4:30PM May 21, 2022Observed: 437.23 ft at 4:45PM May 21, 2022Observed: 437.23 ft at 5:00PM May 21, 2022Observed: 437.23 ft at 5:15PM May 21, 2022Observed: 437.24 ft at 5:30PM May 21, 2022Observed: 437.23 ft at 5:45PM May 21, 2022Observed: 437.23 ft at 6:00PM May 21, 2022Observed: 437.22 ft at 6:15PM May 21, 2022Observed: 437.21 ft at 6:30PM May 21, 2022Observed: 437.21 ft at 6:45PM May 21, 2022Observed: 437.21 ft at 7:00PM May 21, 2022Observed: 437.2 ft at 7:15PM May 21, 2022Observed: 437.2 ft at 7:30PM May 21, 2022Observed: 437.2 ft at 7:45PM May 21, 2022Observed: 437.2 ft at 8:00PM May 21, 2022Observed: 437.2 ft at 8:15PM May 21, 2022Observed: 437.2 ft at 8:30PM May 21, 2022Observed: 437.19 ft at 8:45PM May 21, 2022Observed: 437.18 ft at 9:00PM May 21, 2022Observed: 437.17 ft at 9:15PM May 21, 2022Observed: 437.17 ft at 9:30PM May 21, 2022Observed: 437.17 ft at 9:45PM May 21, 2022Observed: 437.17 ft at 10:00PM May 21, 2022Observed: 437.17 ft at 10:15PM May 21, 2022Observed: 437.17 ft at 10:30PM May 21, 2022Observed: 437.17 ft at 10:45PM May 21, 2022Observed: 437.17 ft at 11:00PM May 21, 2022Observed: 437.16 ft at 11:15PM May 21, 2022Observed: 437.16 ft at 11:30PM May 21, 2022Observed: 437.15 ft at 11:45PM May 21, 2022Observed: 437.14 ft at 12:00AM May 22, 2022Observed: 437.13 ft at 12:15AM May 22, 2022Observed: 437.13 ft at 12:30AM May 22, 2022Observed: 437.13 ft at 12:45AM May 22, 2022Observed: 437.13 ft at 1:00AM May 22, 2022Observed: 437.14 ft at 1:15AM May 22, 2022Observed: 437.14 ft at 1:30AM May 22, 2022Observed: 437.15 ft at 1:45AM May 22, 2022Observed: 437.14 ft at 2:00AM May 22, 2022Observed: 437.14 ft at 2:15AM May 22, 2022Observed: 437.13 ft at 2:30AM May 22, 2022Observed: 437.12 ft at 2:45AM May 22, 2022Observed: 437.12 ft at 3:00AM May 22, 2022Observed: 437.12 ft at 3:15AM May 22, 2022Observed: 437.12 ft at 3:30AM May 22, 2022Observed: 437.13 ft at 3:45AM May 22, 2022Observed: 437.13 ft at 4:00AM May 22, 2022Observed: 437.12 ft at 4:15AM May 22, 2022Observed: 437.12 ft at 4:30AM May 22, 2022Observed: 437.11 ft at 4:45AM May 22, 2022Observed: 437.1 ft at 5:00AM May 22, 2022Observed: 437.1 ft at 5:15AM May 22, 2022Observed: 437.09 ft at 5:30AM May 22, 2022Observed: 437.09 ft at 5:45AM May 22, 2022Observed: 437.09 ft at 6:00AM May 22, 2022Observed: 437.1 ft at 6:15AM May 22, 2022Observed: 437.1 ft at 6:30AM May 22, 2022Observed: 437.1 ft at 6:45AM May 22, 2022Observed: 437.09 ft at 7:00AM May 22, 2022Observed: 437.08 ft at 7:15AM May 22, 2022Observed: 437.07 ft at 7:30AM May 22, 2022Observed: 437.07 ft at 7:45AM May 22, 2022Observed: 437.06 ft at 8:00AM May 22, 2022Observed: 437.07 ft at 8:15AM May 22, 2022Observed: 437.07 ft at 8:30AM May 22, 2022Observed: 437.08 ft at 8:45AM May 22, 2022Observed: 437.08 ft at 9:00AM May 22, 2022Observed: 437.08 ft at 9:15AM May 22, 2022Observed: 437.07 ft at 9:30AM May 22, 2022Observed: 437.07 ft at 9:45AM May 22, 2022USGS--Water Resources of the United StatesXSAC1(plotting HPIRG) Graph Created (11:00AM May 22, 2022)ObservedLatest observed value: 437.07 ft at 9:45 AM PDT 22-May-2022.
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Graphical forecasts are not available for the San Andreas Lake near Millbrae. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

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.
About This Location Collapse

Latitude: 37.580161° N, Longitude: 122.413281° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 460 ft 460 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:
Resources Collapse
Hydrologic Resources Additional Resources
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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:27 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities