This NOAA (National Oceanic and Atmospheric Administration) page tracks the Russian River at Guerneville (gauge GUEC1) with a live hydrograph, recent observations, and official forecasts—including the action, minor, moderate, and major flood thresholds—so you can see real-time river heights at a glance. It also links detailed “Flood Impacts” for the Russian River Resort Area that map specific river stages to streets and locations that flood
Visit the site to see the real time height of the Russian River: