Reply path status

If the gauge table shows [OFFLINE] for many rivers simultaneously, an upstream data feed may be delayed — check the sources below directly.

Data sources

• USGS — waterservices.usgs.gov · instantaneous values API
• CDEC — cdec.water.ca.gov · California Data Exchange Center
• Dreamflows — dreamflows.com · California virtual gauges (realtime.csv, updated every 30–60 min)
• WSC / Water Survey Canada — wateroffice.ec.gc.ca · Canadian stations

Reporting issues

If a gauge appears incorrect or a river is missing, email [email protected]. Include the river name and what you expected to see.