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 Lorenzo River (CA) at Big Trees Stage (ft)Flow (kcfs)Observed: 4.02 ft at 8:15PM Jan 19, 2022Observed: 4.02 ft at 8:30PM Jan 19, 2022Observed: 4.02 ft at 8:45PM Jan 19, 2022Observed: 4.02 ft at 9:00PM Jan 19, 2022Observed: 4.02 ft at 9:15PM Jan 19, 2022Observed: 4.02 ft at 9:30PM Jan 19, 2022Observed: 4.02 ft at 9:45PM Jan 19, 2022Observed: 4.02 ft at 10:00PM Jan 19, 2022Observed: 4.02 ft at 10:15PM Jan 19, 2022Observed: 4.02 ft at 10:30PM Jan 19, 2022Observed: 4.02 ft at 10:45PM Jan 19, 2022Observed: 4.02 ft at 11:00PM Jan 19, 2022Observed: 4.02 ft at 11:15PM Jan 19, 2022Observed: 4.02 ft at 11:30PM Jan 19, 2022Observed: 4.02 ft at 11:45PM Jan 19, 2022Observed: 4.02 ft at 12:00AM Jan 20, 2022Observed: 4.02 ft at 12:15AM Jan 20, 2022Observed: 4.02 ft at 12:30AM Jan 20, 2022Observed: 4.02 ft at 12:45AM Jan 20, 2022Observed: 4.01 ft at 1:00AM Jan 20, 2022Observed: 4 ft at 1:15AM Jan 20, 2022Observed: 4 ft at 1:30AM Jan 20, 2022Observed: 4.01 ft at 1:45AM Jan 20, 2022Observed: 4.01 ft at 2:00AM Jan 20, 2022Observed: 4.01 ft at 2:15AM Jan 20, 2022Observed: 4.01 ft at 2:30AM Jan 20, 2022Observed: 4.01 ft at 2:45AM Jan 20, 2022Observed: 4.01 ft at 3:00AM Jan 20, 2022Observed: 4.01 ft at 3:15AM Jan 20, 2022Observed: 4.01 ft at 3:30AM Jan 20, 2022Observed: 4.01 ft at 3:45AM Jan 20, 2022Observed: 4.01 ft at 4:00AM Jan 20, 2022Observed: 4.01 ft at 4:15AM Jan 20, 2022Observed: 4.01 ft at 4:30AM Jan 20, 2022Observed: 4.01 ft at 4:45AM Jan 20, 2022Observed: 4.01 ft at 5:00AM Jan 20, 2022Observed: 4.01 ft at 5:15AM Jan 20, 2022Observed: 4 ft at 5:30AM Jan 20, 2022Observed: 4.01 ft at 5:45AM Jan 20, 2022Observed: 4.01 ft at 6:00AM Jan 20, 2022Observed: 4 ft at 6:15AM Jan 20, 2022Observed: 4 ft at 6:30AM Jan 20, 2022Observed: 4 ft at 6:45AM Jan 20, 2022Observed: 3.99 ft at 7:00AM Jan 20, 2022Observed: 4 ft at 7:15AM Jan 20, 2022Observed: 4 ft at 7:30AM Jan 20, 2022Observed: 4 ft at 7:45AM Jan 20, 2022Observed: 4 ft at 8:00AM Jan 20, 2022Observed: 4 ft at 8:15AM Jan 20, 2022Observed: 4 ft at 8:30AM Jan 20, 2022Observed: 3.99 ft at 8:45AM Jan 20, 2022Observed: 4 ft at 9:00AM Jan 20, 2022Observed: 4.01 ft at 9:15AM Jan 20, 2022Observed: 4.02 ft at 9:30AM Jan 20, 2022Highest Observation: 4.03 ft at 9:45AM Jan 20, 2022Observed: 4.01 ft at 10:00AM Jan 20, 2022Observed: 4 ft at 10:15AM Jan 20, 2022Observed: 4 ft at 10:30AM Jan 20, 2022Observed: 4 ft at 10:45AM Jan 20, 2022Observed: 4 ft at 11:00AM Jan 20, 2022Observed: 3.99 ft at 11:15AM Jan 20, 2022Observed: 3.99 ft at 11:30AM Jan 20, 2022Observed: 3.98 ft at 11:45AM Jan 20, 2022Observed: 3.99 ft at 12:00PM Jan 20, 2022Observed: 3.99 ft at 12:15PM Jan 20, 2022Observed: 3.99 ft at 12:30PM Jan 20, 2022Observed: 3.99 ft at 12:45PM Jan 20, 2022Observed: 3.99 ft at 1:00PM Jan 20, 2022Observed: 3.99 ft at 1:15PM Jan 20, 2022Observed: 3.99 ft at 1:30PM Jan 20, 2022Observed: 3.99 ft at 1:45PM Jan 20, 2022Observed: 3.99 ft at 2:00PM Jan 20, 2022Observed: 3.99 ft at 2:15PM Jan 20, 2022Observed: 3.99 ft at 2:30PM Jan 20, 2022Observed: 3.99 ft at 2:45PM Jan 20, 2022Observed: 3.99 ft at 3:00PM Jan 20, 2022Observed: 3.99 ft at 3:15PM Jan 20, 2022Observed: 4 ft at 3:30PM Jan 20, 2022Observed: 4 ft at 3:45PM Jan 20, 2022Observed: 4 ft at 4:00PM Jan 20, 2022Observed: 3.99 ft at 4:15PM Jan 20, 2022Observed: 4 ft at 4:30PM Jan 20, 2022Observed: 4 ft at 4:45PM Jan 20, 2022Observed: 3.99 ft at 5:00PM Jan 20, 2022Observed: 4 ft at 5:15PM Jan 20, 2022Observed: 4 ft at 5:30PM Jan 20, 2022Observed: 4 ft at 5:45PM Jan 20, 2022Observed: 4 ft at 6:00PM Jan 20, 2022Observed: 4 ft at 6:15PM Jan 20, 2022Observed: 4 ft at 6:30PM Jan 20, 2022Observed: 4 ft at 6:45PM Jan 20, 2022Observed: 4 ft at 7:00PM Jan 20, 2022Observed: 4 ft at 7:15PM Jan 20, 2022Observed: 4 ft at 7:30PM Jan 20, 2022Observed: 3.99 ft at 7:45PM Jan 20, 2022Observed: 3.99 ft at 8:00PM Jan 20, 2022Observed: 3.99 ft at 8:15PM Jan 20, 2022Observed: 3.99 ft at 8:30PM Jan 20, 2022Observed: 3.99 ft at 8:45PM Jan 20, 2022Observed: 3.98 ft at 9:00PM Jan 20, 2022Observed: 3.98 ft at 9:15PM Jan 20, 2022Observed: 3.98 ft at 9:30PM Jan 20, 2022Observed: 3.98 ft at 9:45PM Jan 20, 2022Observed: 3.98 ft at 10:00PM Jan 20, 2022Observed: 3.98 ft at 10:15PM Jan 20, 2022Observed: 3.98 ft at 10:30PM Jan 20, 2022Observed: 3.98 ft at 10:45PM Jan 20, 2022Observed: 3.99 ft at 11:00PM Jan 20, 2022Observed: 3.99 ft at 11:15PM Jan 20, 2022Observed: 3.99 ft at 11:30PM Jan 20, 2022Observed: 3.99 ft at 11:45PM Jan 20, 2022Observed: 3.99 ft at 12:00AM Jan 21, 2022Observed: 3.99 ft at 12:15AM Jan 21, 2022Observed: 3.99 ft at 12:30AM Jan 21, 2022Observed: 3.99 ft at 12:45AM Jan 21, 2022Observed: 3.99 ft at 1:00AM Jan 21, 2022Observed: 3.99 ft at 1:15AM Jan 21, 2022Observed: 3.99 ft at 1:30AM Jan 21, 2022Observed: 3.98 ft at 1:45AM Jan 21, 2022Observed: 3.98 ft at 2:00AM Jan 21, 2022Observed: 3.98 ft at 2:15AM Jan 21, 2022Observed: 3.98 ft at 2:30AM Jan 21, 2022Observed: 3.98 ft at 2:45AM Jan 21, 2022Observed: 3.98 ft at 3:00AM Jan 21, 2022Observed: 3.98 ft at 3:15AM Jan 21, 2022Observed: 3.98 ft at 3:30AM Jan 21, 2022Observed: 3.98 ft at 3:45AM Jan 21, 2022Observed: 3.98 ft at 4:00AM Jan 21, 2022Observed: 3.98 ft at 4:15AM Jan 21, 2022Observed: 3.98 ft at 4:30AM Jan 21, 2022Observed: 3.98 ft at 4:45AM Jan 21, 2022Observed: 3.98 ft at 5:00AM Jan 21, 2022Observed: 3.98 ft at 5:15AM Jan 21, 2022Observed: 3.98 ft at 5:30AM Jan 21, 2022Observed: 3.98 ft at 5:45AM Jan 21, 2022Observed: 3.98 ft at 6:00AM Jan 21, 2022Observed: 3.98 ft at 6:15AM Jan 21, 2022Observed: 3.98 ft at 6:30AM Jan 21, 2022Observed: 3.98 ft at 6:45AM Jan 21, 2022Observed: 3.98 ft at 7:00AM Jan 21, 2022Observed: 3.98 ft at 7:15AM Jan 21, 2022Observed: 3.98 ft at 7:30AM Jan 21, 2022Observed: 3.98 ft at 7:45AM Jan 21, 2022Observed: 3.98 ft at 8:00AM Jan 21, 2022Observed: 3.98 ft at 8:15AM Jan 21, 2022Observed: 3.98 ft at 8:30AM Jan 21, 2022Observed: 3.98 ft at 8:45AM Jan 21, 2022Observed: 3.97 ft at 9:00AM Jan 21, 2022Observed: 3.98 ft at 9:15AM Jan 21, 2022Observed: 3.97 ft at 9:30AM Jan 21, 2022Observed: 3.97 ft at 9:45AM Jan 21, 2022Observed: 3.97 ft at 10:00AM Jan 21, 2022Observed: 3.97 ft at 10:15AM Jan 21, 2022Observed: 3.97 ft at 10:30AM Jan 21, 2022Observed: 3.97 ft at 10:45AM Jan 21, 2022Observed: 3.97 ft at 11:00AM Jan 21, 2022Observed: 3.97 ft at 11:15AM Jan 21, 2022Observed: 3.96 ft at 11:30AM Jan 21, 2022Observed: 3.96 ft at 11:45AM Jan 21, 2022Observed: 3.96 ft at 12:00PM Jan 21, 2022Observed: 3.96 ft at 12:15PM Jan 21, 2022Observed: 3.96 ft at 12:30PM Jan 21, 2022Observed: 3.96 ft at 12:45PM Jan 21, 2022Observed: 3.96 ft at 1:00PM Jan 21, 2022Observed: 3.95 ft at 1:15PM Jan 21, 2022Observed: 3.96 ft at 1:30PM Jan 21, 2022Observed: 3.96 ft at 1:45PM Jan 21, 2022Observed: 3.96 ft at 2:00PM Jan 21, 2022Observed: 3.97 ft at 2:15PM Jan 21, 2022Observed: 3.97 ft at 2:30PM Jan 21, 2022Observed: 3.94 ft at 2:45PM Jan 21, 2022Observed: 3.97 ft at 3:00PM Jan 21, 2022Observed: 3.97 ft at 3:15PM Jan 21, 2022Observed: 3.97 ft at 3:30PM Jan 21, 2022Observed: 3.97 ft at 3:45PM Jan 21, 2022Observed: 3.96 ft at 4:00PM Jan 21, 2022Observed: 3.96 ft at 4:15PM Jan 21, 2022Observed: 3.96 ft at 4:30PM Jan 21, 2022Observed: 3.97 ft at 4:45PM Jan 21, 2022Observed: 3.97 ft at 5:00PM Jan 21, 2022Observed: 3.96 ft at 5:15PM Jan 21, 2022Observed: 3.96 ft at 5:30PM Jan 21, 2022Observed: 3.97 ft at 5:45PM Jan 21, 2022Observed: 3.96 ft at 6:00PM Jan 21, 2022Observed: 3.96 ft at 6:15PM Jan 21, 2022Observed: 3.96 ft at 6:30PM Jan 21, 2022Observed: 3.97 ft at 6:45PM Jan 21, 2022Observed: 3.97 ft at 7:00PM Jan 21, 2022Observed: 3.97 ft at 7:15PM Jan 21, 2022Observed: 3.97 ft at 7:30PM Jan 21, 2022Observed: 3.97 ft at 7:45PM Jan 21, 2022Observed: 3.97 ft at 8:00PM Jan 21, 2022Observed: 3.97 ft at 8:15PM Jan 21, 2022Observed: 3.97 ft at 8:30PM Jan 21, 2022Observed: 3.97 ft at 8:45PM Jan 21, 2022Observed: 3.97 ft at 9:00PM Jan 21, 2022Observed: 3.96 ft at 9:15PM Jan 21, 2022Observed: 3.96 ft at 9:30PM Jan 21, 2022Observed: 3.96 ft at 9:45PM Jan 21, 2022Observed: 3.96 ft at 10:00PM Jan 21, 2022Observed: 3.96 ft at 10:15PM Jan 21, 2022Observed: 3.96 ft at 10:30PM Jan 21, 2022Observed: 3.96 ft at 10:45PM Jan 21, 2022Observed: 3.96 ft at 11:00PM Jan 21, 2022Observed: 3.96 ft at 11:15PM Jan 21, 2022Observed: 3.96 ft at 11:30PM Jan 21, 2022Observed: 3.96 ft at 11:45PM Jan 21, 2022Observed: 3.96 ft at 12:00AM Jan 22, 2022Observed: 3.96 ft at 12:15AM Jan 22, 2022Observed: 3.96 ft at 12:30AM Jan 22, 2022Observed: 3.96 ft at 12:45AM Jan 22, 2022Observed: 3.96 ft at 1:00AM Jan 22, 2022Observed: 3.96 ft at 1:15AM Jan 22, 2022Observed: 3.96 ft at 1:30AM Jan 22, 2022Observed: 3.96 ft at 1:45AM Jan 22, 2022Observed: 3.96 ft at 2:00AM Jan 22, 2022Observed: 3.96 ft at 2:15AM Jan 22, 2022Observed: 3.96 ft at 2:30AM Jan 22, 2022Observed: 3.96 ft at 2:45AM Jan 22, 2022Observed: 3.96 ft at 3:00AM Jan 22, 2022Observed: 3.96 ft at 3:15AM Jan 22, 2022Observed: 3.96 ft at 3:30AM Jan 22, 2022Observed: 3.96 ft at 3:45AM Jan 22, 2022Observed: 3.96 ft at 4:00AM Jan 22, 2022Observed: 3.96 ft at 4:15AM Jan 22, 2022Observed: 3.96 ft at 4:30AM Jan 22, 2022Observed: 3.96 ft at 4:45AM Jan 22, 2022Observed: 3.95 ft at 5:00AM Jan 22, 2022Observed: 3.95 ft at 5:15AM Jan 22, 2022Observed: 3.95 ft at 5:30AM Jan 22, 2022Observed: 3.95 ft at 5:45AM Jan 22, 2022Observed: 3.96 ft at 6:00AM Jan 22, 2022Observed: 3.95 ft at 6:15AM Jan 22, 2022Observed: 3.96 ft at 6:30AM Jan 22, 2022Observed: 3.96 ft at 6:45AM Jan 22, 2022Observed: 3.96 ft at 7:00AM Jan 22, 2022Observed: 3.95 ft at 7:15AM Jan 22, 2022Observed: 3.96 ft at 7:30AM Jan 22, 2022Observed: 3.95 ft at 7:45AM Jan 22, 2022Observed: 3.95 ft at 8:00AM Jan 22, 2022Observed: 3.95 ft at 8:15AM Jan 22, 2022Observed: 3.95 ft at 8:30AM Jan 22, 2022Observed: 3.95 ft at 8:45AM Jan 22, 2022Observed: 3.95 ft at 9:00AM Jan 22, 2022Observed: 3.95 ft at 9:15AM Jan 22, 2022Observed: 3.95 ft at 9:30AM Jan 22, 2022Observed: 3.94 ft at 9:45AM Jan 22, 2022Observed: 3.94 ft at 10:00AM Jan 22, 2022Observed: 3.94 ft at 10:15AM Jan 22, 2022Observed: 3.94 ft at 10:30AM Jan 22, 2022Observed: 3.94 ft at 10:45AM Jan 22, 2022Observed: 3.94 ft at 11:00AM Jan 22, 2022Observed: 3.93 ft at 11:15AM Jan 22, 2022Observed: 3.93 ft at 11:30AM Jan 22, 2022Observed: 3.94 ft at 11:45AM Jan 22, 2022Observed: 3.94 ft at 12:00PM Jan 22, 2022Observed: 3.94 ft at 12:15PM Jan 22, 2022Observed: 3.94 ft at 12:30PM Jan 22, 2022Observed: 3.94 ft at 12:45PM Jan 22, 2022Observed: 3.94 ft at 1:00PM Jan 22, 2022Observed: 3.93 ft at 1:15PM Jan 22, 2022Observed: 3.93 ft at 1:30PM Jan 22, 2022Observed: 3.93 ft at 1:45PM Jan 22, 2022Observed: 3.93 ft at 2:00PM Jan 22, 2022Observed: 3.94 ft at 2:15PM Jan 22, 2022Observed: 3.94 ft at 2:30PM Jan 22, 2022Observed: 3.94 ft at 2:45PM Jan 22, 2022Observed: 3.94 ft at 3:00PM Jan 22, 2022Observed: 3.94 ft at 3:15PM Jan 22, 2022Observed: 3.94 ft at 3:30PM Jan 22, 2022Observed: 3.94 ft at 3:45PM Jan 22, 2022Observed: 3.95 ft at 4:00PM Jan 22, 2022Observed: 3.94 ft at 4:15PM Jan 22, 2022Observed: 3.94 ft at 4:30PM Jan 22, 2022Observed: 3.94 ft at 4:45PM Jan 22, 2022Observed: 3.94 ft at 5:00PM Jan 22, 2022Observed: 3.94 ft at 5:15PM Jan 22, 2022Observed: 3.94 ft at 5:30PM Jan 22, 2022Observed: 3.93 ft at 5:45PM Jan 22, 2022Observed: 3.94 ft at 6:00PM Jan 22, 2022Observed: 3.93 ft at 6:15PM Jan 22, 2022Observed: 3.93 ft at 6:30PM Jan 22, 2022Observed: 3.93 ft at 6:45PM Jan 22, 2022Observed: 3.93 ft at 7:00PM Jan 22, 2022Observed: 3.93 ft at 7:15PM Jan 22, 2022Observed: 3.93 ft at 7:30PM Jan 22, 2022Observed: 3.93 ft at 7:45PM Jan 22, 2022Observed: 3.93 ft at 8:00PM Jan 22, 2022Observed: 3.93 ft at 8:15PM Jan 22, 2022Observed: 3.93 ft at 8:30PM Jan 22, 2022Observed: 3.93 ft at 8:45PM Jan 22, 2022Observed: 3.93 ft at 9:00PM Jan 22, 2022Observed: 3.93 ft at 9:15PM Jan 22, 2022Observed: 3.93 ft at 9:30PM Jan 22, 2022Observed: 3.93 ft at 9:45PM Jan 22, 2022Observed: 3.93 ft at 10:00PM Jan 22, 2022Observed: 3.93 ft at 10:15PM Jan 22, 2022Observed: 3.93 ft at 10:30PM Jan 22, 2022Observed: 3.93 ft at 10:45PM Jan 22, 2022Observed: 3.93 ft at 11:00PM Jan 22, 2022Observed: 3.93 ft at 11:15PM Jan 22, 2022Observed: 3.92 ft at 11:30PM Jan 22, 2022Observed: 3.92 ft at 11:45PM Jan 22, 2022Observed: 3.92 ft at 12:00AM Jan 23, 2022Observed: 3.92 ft at 12:15AM Jan 23, 2022Observed: 3.92 ft at 12:30AM Jan 23, 2022Observed: 3.92 ft at 12:45AM Jan 23, 2022Observed: 3.92 ft at 1:00AM Jan 23, 2022Observed: 3.92 ft at 1:15AM Jan 23, 2022Observed: 3.92 ft at 1:30AM Jan 23, 2022Observed: 3.92 ft at 1:45AM Jan 23, 2022Observed: 3.92 ft at 2:00AM Jan 23, 2022Observed: 3.92 ft at 2:15AM Jan 23, 2022Observed: 3.92 ft at 2:30AM Jan 23, 2022Observed: 3.92 ft at 2:45AM Jan 23, 2022Observed: 3.92 ft at 3:00AM Jan 23, 2022Observed: 3.92 ft at 3:15AM Jan 23, 2022Observed: 3.92 ft at 3:30AM Jan 23, 2022Observed: 3.92 ft at 3:45AM Jan 23, 2022Observed: 3.92 ft at 4:00AM Jan 23, 2022Observed: 3.92 ft at 4:15AM Jan 23, 2022Observed: 3.92 ft at 4:30AM Jan 23, 2022Observed: 3.92 ft at 4:45AM Jan 23, 2022Observed: 3.92 ft at 5:00AM Jan 23, 2022Observed: 3.9 ft at 5:15AM Jan 23, 2022Observed: 3.9 ft at 5:30AM Jan 23, 2022Observed: 3.91 ft at 5:45AM Jan 23, 2022Observed: 3.91 ft at 6:00AM Jan 23, 2022Observed: 3.92 ft at 6:15AM Jan 23, 2022Observed: 3.92 ft at 6:30AM Jan 23, 2022Observed: 3.92 ft at 6:45AM Jan 23, 2022Observed: 3.92 ft at 7:00AM Jan 23, 2022Observed: 3.92 ft at 7:15AM Jan 23, 2022Observed: 3.92 ft at 7:30AM Jan 23, 2022Observed: 3.92 ft at 7:45AM Jan 23, 2022Observed: 3.92 ft at 8:00AM Jan 23, 2022Observed: 3.91 ft at 8:15AM Jan 23, 2022Observed: 3.9 ft at 8:30AM Jan 23, 2022Observed: 3.91 ft at 8:45AM Jan 23, 2022Observed: 3.91 ft at 9:00AM Jan 23, 2022Observed: 3.91 ft at 9:15AM Jan 23, 2022Observed: 3.91 ft at 9:30AM Jan 23, 2022Observed: 3.91 ft at 9:45AM Jan 23, 2022Observed: 3.91 ft at 10:00AM Jan 23, 2022Observed: 3.91 ft at 10:15AM Jan 23, 2022Observed: 3.91 ft at 10:30AM Jan 23, 2022Observed: 3.9 ft at 10:45AM Jan 23, 2022Observed: 3.9 ft at 11:00AM Jan 23, 2022Observed: 3.9 ft at 11:15AM Jan 23, 2022Observed: 3.89 ft at 11:30AM Jan 23, 2022Observed: 3.89 ft at 11:45AM Jan 23, 2022Observed: 3.89 ft at 12:00PM Jan 23, 2022Observed: 3.9 ft at 12:15PM Jan 23, 2022Observed: 3.9 ft at 12:30PM Jan 23, 2022Observed: 3.9 ft at 12:45PM Jan 23, 2022Observed: 3.9 ft at 1:00PM Jan 23, 2022Observed: 3.9 ft at 1:15PM Jan 23, 2022Observed: 3.9 ft at 1:30PM Jan 23, 2022Observed: 3.9 ft at 1:45PM Jan 23, 2022Observed: 3.9 ft at 2:00PM Jan 23, 2022Observed: 3.9 ft at 2:15PM Jan 23, 2022Observed: 3.9 ft at 2:30PM Jan 23, 2022Observed: 3.91 ft at 2:45PM Jan 23, 2022Observed: 3.91 ft at 3:00PM Jan 23, 2022Observed: 3.91 ft at 3:15PM Jan 23, 2022Observed: 3.91 ft at 3:30PM Jan 23, 2022Observed: 3.91 ft at 3:45PM Jan 23, 2022Observed: 3.91 ft at 4:00PM Jan 23, 2022Observed: 3.91 ft at 4:15PM Jan 23, 2022Observed: 3.91 ft at 4:30PM Jan 23, 2022Observed: 3.91 ft at 4:45PM Jan 23, 2022Observed: 3.91 ft at 5:00PM Jan 23, 2022Observed: 3.9 ft at 5:15PM Jan 23, 2022Observed: 3.9 ft at 5:30PM Jan 23, 2022Observed: 3.9 ft at 5:45PM Jan 23, 2022Observed: 3.9 ft at 6:00PM Jan 23, 2022Observed: 3.9 ft at 6:15PM Jan 23, 2022Observed: 3.9 ft at 6:30PM Jan 23, 2022Observed: 3.9 ft at 6:45PM Jan 23, 2022Observed: 3.9 ft at 7:00PM Jan 23, 2022Observed: 3.9 ft at 7:15PM Jan 23, 2022Observed: 3.89 ft at 7:30PM Jan 23, 2022Observed: 3.9 ft at 7:45PM Jan 23, 2022Observed: 3.9 ft at 8:00PM Jan 23, 2022Observed: 3.9 ft at 8:15PM Jan 23, 2022Observed: 3.9 ft at 8:30PM Jan 23, 2022Observed: 3.9 ft at 8:45PM Jan 23, 2022Observed: 3.9 ft at 9:00PM Jan 23, 2022Observed: 3.9 ft at 9:15PM Jan 23, 2022Observed: 3.9 ft at 9:30PM Jan 23, 2022Observed: 3.9 ft at 9:45PM Jan 23, 2022Observed: 3.9 ft at 10:00PM Jan 23, 2022Observed: 3.9 ft at 10:15PM Jan 23, 2022Observed: 3.9 ft at 10:30PM Jan 23, 2022Observed: 3.9 ft at 10:45PM Jan 23, 2022Observed: 3.9 ft at 11:00PM Jan 23, 2022Observed: 3.9 ft at 11:15PM Jan 23, 2022Observed: 3.9 ft at 11:30PM Jan 23, 2022Observed: 3.9 ft at 11:45PM Jan 23, 2022Observed: 3.9 ft at 12:00AM Jan 24, 2022Observed: 3.9 ft at 12:15AM Jan 24, 2022Observed: 3.9 ft at 12:30AM Jan 24, 2022Observed: 3.9 ft at 12:45AM Jan 24, 2022Observed: 3.89 ft at 1:00AM Jan 24, 2022Observed: 3.89 ft at 1:15AM Jan 24, 2022Observed: 3.89 ft at 1:30AM Jan 24, 2022Observed: 3.89 ft at 1:45AM Jan 24, 2022Observed: 3.89 ft at 2:00AM Jan 24, 2022Observed: 3.89 ft at 2:15AM Jan 24, 2022Observed: 3.89 ft at 2:30AM Jan 24, 2022Observed: 3.89 ft at 2:45AM Jan 24, 2022Observed: 3.89 ft at 3:00AM Jan 24, 2022Observed: 3.89 ft at 3:15AM Jan 24, 2022Observed: 3.89 ft at 3:30AM Jan 24, 2022Observed: 3.89 ft at 3:45AM Jan 24, 2022Observed: 3.89 ft at 4:00AM Jan 24, 2022Observed: 3.89 ft at 4:15AM Jan 24, 2022Observed: 3.89 ft at 4:30AM Jan 24, 2022Observed: 3.89 ft at 4:45AM Jan 24, 2022Observed: 3.89 ft at 5:00AM Jan 24, 2022Observed: 3.89 ft at 5:15AM Jan 24, 2022Observed: 3.89 ft at 5:30AM Jan 24, 2022Observed: 3.89 ft at 5:45AM Jan 24, 2022Observed: 3.89 ft at 6:00AM Jan 24, 2022Observed: 3.89 ft at 6:15AM Jan 24, 2022Observed: 3.89 ft at 6:30AM Jan 24, 2022Observed: 3.89 ft at 6:45AM Jan 24, 2022Observed: 3.89 ft at 7:00AM Jan 24, 2022Observed: 3.89 ft at 7:15AM Jan 24, 2022Observed: 3.89 ft at 7:30AM Jan 24, 2022Observed: 3.89 ft at 7:45AM Jan 24, 2022Observed: 3.89 ft at 8:00AM Jan 24, 2022Observed: 3.89 ft at 8:15AM Jan 24, 2022Observed: 3.89 ft at 8:30AM Jan 24, 2022Observed: 3.89 ft at 8:45AM Jan 24, 2022Observed: 3.89 ft at 9:00AM Jan 24, 2022Observed: 3.89 ft at 9:15AM Jan 24, 2022Observed: 3.89 ft at 9:30AM Jan 24, 2022Observed: 3.88 ft at 9:45AM Jan 24, 2022Observed: 3.88 ft at 10:00AM Jan 24, 2022Observed: 3.88 ft at 10:15AM Jan 24, 2022Observed: 3.88 ft at 10:30AM Jan 24, 2022Observed: 3.86 ft at 10:45AM Jan 24, 2022Observed: 3.87 ft at 11:00AM Jan 24, 2022Observed: 3.87 ft at 11:15AM Jan 24, 2022Observed: 3.86 ft at 11:30AM Jan 24, 2022Observed: 3.86 ft at 11:45AM Jan 24, 2022Observed: 3.87 ft at 12:00PM Jan 24, 2022Observed: 3.87 ft at 12:15PM Jan 24, 2022Observed: 3.87 ft at 12:30PM Jan 24, 2022Observed: 3.87 ft at 12:45PM Jan 24, 2022Observed: 3.87 ft at 1:00PM Jan 24, 2022Observed: 3.87 ft at 1:15PM Jan 24, 2022Observed: 3.87 ft at 1:30PM Jan 24, 2022Observed: 3.87 ft at 1:45PM Jan 24, 2022Observed: 3.88 ft at 2:00PM Jan 24, 2022Observed: 3.88 ft at 2:15PM Jan 24, 2022Observed: 3.87 ft at 2:30PM Jan 24, 2022Observed: 3.88 ft at 2:45PM Jan 24, 2022Observed: 3.89 ft at 3:00PM Jan 24, 2022Observed: 3.89 ft at 3:15PM Jan 24, 2022Observed: 3.89 ft at 3:30PM Jan 24, 2022Observed: 3.89 ft at 3:45PM Jan 24, 2022Observed: 3.89 ft at 4:00PM Jan 24, 2022Observed: 3.89 ft at 4:15PM Jan 24, 2022Observed: 3.89 ft at 4:30PM Jan 24, 2022Observed: 3.88 ft at 4:45PM Jan 24, 2022Observed: 3.89 ft at 5:00PM Jan 24, 2022Observed: 3.89 ft at 5:15PM Jan 24, 2022Observed: 3.89 ft at 5:30PM Jan 24, 2022Observed: 3.89 ft at 5:45PM Jan 24, 2022Observed: 3.89 ft at 6:00PM Jan 24, 2022Observed: 3.89 ft at 6:15PM Jan 24, 2022Observed: 3.88 ft at 6:30PM Jan 24, 2022Observed: 3.89 ft at 6:45PM Jan 24, 2022Observed: 3.88 ft at 7:00PM Jan 24, 2022Observed: 3.88 ft at 7:15PM Jan 24, 2022Observed: 3.88 ft at 7:30PM Jan 24, 2022Highest Forecast: 3.9 ft 9:00PM Jan 24, 2022Highest Forecast: 3.9 ft 10:00PM Jan 24, 2022Highest Forecast: 3.9 ft 11:00PM Jan 24, 2022Highest Forecast: 3.9 ft 12:00AM Jan 25, 2022Highest Forecast: 3.9 ft 1:00AM Jan 25, 2022Highest Forecast: 3.9 ft 2:00AM Jan 25, 2022Highest Forecast: 3.9 ft 3:00AM Jan 25, 2022Forecast: 3.8 ft 4:00AM Jan 25, 2022Forecast: 3.8 ft 5:00AM Jan 25, 2022Forecast: 3.8 ft 6:00AM Jan 25, 2022Forecast: 3.8 ft 7:00AM Jan 25, 2022Forecast: 3.8 ft 8:00AM Jan 25, 2022Forecast: 3.8 ft 9:00AM Jan 25, 2022Forecast: 3.8 ft 10:00AM Jan 25, 2022Forecast: 3.8 ft 11:00AM Jan 25, 2022Forecast: 3.8 ft 12:00PM Jan 25, 2022Forecast: 3.8 ft 1:00PM Jan 25, 2022Forecast: 3.8 ft 2:00PM Jan 25, 2022Forecast: 3.8 ft 3:00PM Jan 25, 2022Forecast: 3.8 ft 4:00PM Jan 25, 2022Forecast: 3.8 ft 5:00PM Jan 25, 2022Forecast: 3.8 ft 6:00PM Jan 25, 2022Forecast: 3.8 ft 7:00PM Jan 25, 2022Forecast: 3.8 ft 8:00PM Jan 25, 2022Forecast: 3.8 ft 9:00PM Jan 25, 2022Forecast: 3.8 ft 10:00PM Jan 25, 2022Forecast: 3.8 ft 11:00PM Jan 25, 2022Forecast: 3.8 ft 12:00AM Jan 26, 2022Forecast: 3.8 ft 1:00AM Jan 26, 2022Forecast: 3.8 ft 2:00AM Jan 26, 2022Forecast: 3.8 ft 3:00AM Jan 26, 2022Forecast: 3.8 ft 4:00AM Jan 26, 2022Forecast: 3.8 ft 5:00AM Jan 26, 2022Forecast: 3.8 ft 6:00AM Jan 26, 2022Forecast: 3.8 ft 7:00AM Jan 26, 2022Forecast: 3.8 ft 8:00AM Jan 26, 2022Forecast: 3.8 ft 9:00AM Jan 26, 2022Forecast: 3.8 ft 10:00AM Jan 26, 2022Forecast: 3.8 ft 11:00AM Jan 26, 2022Forecast: 3.8 ft 12:00PM Jan 26, 2022Forecast: 3.8 ft 1:00PM Jan 26, 2022Forecast: 3.8 ft 2:00PM Jan 26, 2022Forecast: 3.8 ft 3:00PM Jan 26, 2022Forecast: 3.8 ft 4:00PM Jan 26, 2022Forecast: 3.8 ft 5:00PM Jan 26, 2022Forecast: 3.8 ft 6:00PM Jan 26, 2022Forecast: 3.8 ft 7:00PM Jan 26, 2022Forecast: 3.8 ft 8:00PM Jan 26, 2022Forecast: 3.8 ft 9:00PM Jan 26, 2022Forecast: 3.8 ft 10:00PM Jan 26, 2022Forecast: 3.8 ft 11:00PM Jan 26, 2022Forecast: 3.8 ft 12:00AM Jan 27, 2022Forecast: 3.8 ft 1:00AM Jan 27, 2022Forecast: 3.8 ft 2:00AM Jan 27, 2022Forecast: 3.8 ft 3:00AM Jan 27, 2022Forecast: 3.8 ft 4:00AM Jan 27, 2022Forecast: 3.8 ft 5:00AM Jan 27, 2022Forecast: 3.8 ft 6:00AM Jan 27, 2022Forecast: 3.8 ft 7:00AM Jan 27, 2022Forecast: 3.8 ft 8:00AM Jan 27, 2022Forecast: 3.8 ft 9:00AM Jan 27, 2022Forecast: 3.8 ft 10:00AM Jan 27, 2022Forecast: 3.8 ft 11:00AM Jan 27, 2022Forecast: 3.8 ft 12:00PM Jan 27, 2022Forecast: 3.8 ft 1:00PM Jan 27, 2022Forecast: 3.8 ft 2:00PM Jan 27, 2022Forecast: 3.8 ft 3:00PM Jan 27, 2022Forecast: 3.8 ft 4:00PM Jan 27, 2022Forecast: 3.8 ft 5:00PM Jan 27, 2022Forecast: 3.8 ft 6:00PM Jan 27, 2022Forecast: 3.8 ft 7:00PM Jan 27, 2022Forecast: 3.8 ft 8:00PM Jan 27, 2022Forecast: 3.8 ft 9:00PM Jan 27, 2022Forecast: 3.8 ft 10:00PM Jan 27, 2022Forecast: 3.8 ft 11:00PM Jan 27, 2022Forecast: 3.8 ft 12:00AM Jan 28, 2022Forecast: 3.8 ft 1:00AM Jan 28, 2022Forecast: 3.8 ft 2:00AM Jan 28, 2022Forecast: 3.8 ft 3:00AM Jan 28, 2022Forecast: 3.8 ft 4:00AM Jan 28, 2022Forecast: 3.8 ft 5:00AM Jan 28, 2022Forecast: 3.8 ft 6:00AM Jan 28, 2022Forecast: 3.8 ft 7:00AM Jan 28, 2022Forecast: 3.8 ft 8:00AM Jan 28, 2022Forecast: 3.8 ft 9:00AM Jan 28, 2022Forecast: 3.8 ft 10:00AM Jan 28, 2022Forecast: 3.8 ft 11:00AM Jan 28, 2022Forecast: 3.8 ft 12:00PM Jan 28, 2022Forecast: 3.8 ft 1:00PM Jan 28, 2022Forecast: 3.8 ft 2:00PM Jan 28, 2022Forecast: 3.8 ft 3:00PM Jan 28, 2022Forecast: 3.8 ft 4:00PM Jan 28, 2022Forecast: 3.8 ft 5:00PM Jan 28, 2022Forecast: 3.8 ft 6:00PM Jan 28, 2022Forecast: 3.8 ft 7:00PM Jan 28, 2022Forecast: 3.8 ft 8:00PM Jan 28, 2022Forecast: 3.8 ft 9:00PM Jan 28, 2022Forecast: 3.8 ft 10:00PM Jan 28, 2022Forecast: 3.8 ft 11:00PM Jan 28, 2022Forecast: 3.8 ft 12:00AM Jan 29, 2022Forecast: 3.8 ft 1:00AM Jan 29, 2022Forecast: 3.8 ft 2:00AM Jan 29, 2022Forecast: 3.8 ft 3:00AM Jan 29, 2022Forecast: 3.8 ft 4:00AM Jan 29, 2022USGS--Water Resources of the United StatesBTEC1(plotting HGIRG) Graph Created (8:00PM Jan 24, 2022)ObservedForecast (issued 1:50PM Jan 24)Latest observed value: 3.88 ft at 7:30 PM PST 24-Jan-2022. Flood Stage is 16.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: Not Available
Metadata
Reliability of the Forecast: Based on unobstructed flow

NOTE: Forecasts for the San Lorenzo River (CA) at Big Trees are issued routinely year-round.

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 21.76
Moderate Flood Stage: 19.5
Flood Stage: 16.5
Action Stage: 14
Low Stage (in feet): -9999

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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
21.76 At approximately 21.76 feet discharge in the San Lorenzo River is approximately 15,000 cfs. Major flooding in the Felton Grove neighborhood occurs at this stage, with roadways several feet deep and waters inundating the approaches to the Felton Covered Bridge. Felton Covered Bridge Park begins to experience widespread flooding at shallow depths. At 15,000 cfs, the City of Santa Cruz downstream will experience more serious flooding. The flood wave may take 2-3 hours to reach Santa Cruz.
19.5 Moderate Flooding. The St. Bernard Street area in Paradise Park is under several feet of water, with below grade floodplain infrastructure several feet deeper. St. Augustine Avenue neighborhood in Paradise Park begins to flood. Flooding imminent or already occurring in the Felton Grove neighborhood. Ground stories, first floors, and garages flooded. Felton Covered Bridge Park begins to flood. NWS will issue an updated Flash Flood Warning, if not yet already issued.
16.5 Minor Flooding. Flooding is either imminent or already occurring in Paradise Park, with initial flooding in the St. Bernard Street area. NWS will issue a Flash Flood Warning, if not yet already issued.
14 Monitor Stage. Stage can rise rapidly on the San Lorenzo River, up to several feet per hour. Approximately 2.5 feet below flood levels in Paradise Park and approximately 5.5 feet below flood stage in Felton Grove. NWS may issue a Flash Flood Watch, in not yet already issued.
About This Location Collapse

Latitude: 37.044444° N, Longitude: 122.072500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16.5 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 Not Available Not Available 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