Toggle the two National Water Model overlays on the map above: Rivers right now (current flow vs normal, percentile classes) and the 5-day high-flow outlook (peak flow next 5 days as annual exceedance probability - 2% is a 50-year-class peak). Colors paint whole river networks, so empty rivers are normal outside flood events. Updated Fri Oct 02, 07:01 PM ET. For the rain driving it, the WPC QPF days 1-5 charts are on the National page, and gauges below give the ground truth.