Choose parameters and subscribe here: http://water.usgs.gov/wateralert/subscribe2/index.html?site_no=06815000&type_cd=sw
Station Manuscript
Downstream view near USGS gaging station: Big Nemaha River at Falls City, Nebr.
Add up to 2 more sites and replot for "Discharge, cubic feet per second, [Discharge from Primary Sensor]"