Consolidated Poudre Flows

This page contains flow data for the Poudre River from a variety of sources and charts them on one page. The chart can be zoomed by click/drag or pinch/zoom highlighting or via the form buttons below. See cameron_snow for snow reports.

See latest Rock reports.

Flow Charts

Expand & choose which stations & date ranges to display (make a custom URL to bookmark!)

Click on the gauge name in the Legend box to add or remove it from the chart. Legend display the latest values by default

Notes on Usage
Hewlett (CFS) to Rock (Ft) Converter: Caution: The gauge changed a bit earlier, so this equation isn't holding up well...

In the form below you can enter a flow from the Hewlett Gauge. It'll convert it to Feet on the Rock when you hit "enter". The equation is less accurate at flows below ~300 and probably likely will lose accuracy above ~3200. It's broken below say 100cfs or whenever the Rock would read less than 0.1 feet.

Hewlett CFS: Rock Ft:

For reference, the current equation is:
extra = cfs < 100 = 1.8
extra = cfs < 150 && >= 100 = 1.5
extra = cfs < 500 && >= 150 = 0.5
extra = cfs >= 500 = 0.35
rock = 1.8391 * ln(cfs) - 0.9629 + extra

Source data is from:
Useful links
Other nearby gauges