Originally Posted by OregonRafter
I'd be curious if increased river flow is a reliable indicator of SWE loss though. If it's raining at high elevation then it is probably raining basin wide, which would always lead to increased flows regardless of its impact on SWE.
Orographic rainfall can produce rain just up high.
Many is the time one has driven down from a wet Government Camp, dropped a 1,000 in elevation and it clears.
Looking quickly at the snotel sites, in the links provided by Wadeinthewater or anywhere, the focus is on higher elevations.
Rain Basin wide effects immediate stream flow but they don't think its that important for the summer season. So snotel sites are up high.
You can use some of the flood prediction sites to research what may be going on.
Northwest River Forecast Center
Advanced Hydrologic Prediction Service: Portland