USGS – United States Geological Survey – find and follow your local gages to keep track of current and historical flow conditions
World Meteorological Organization
NC Flood – Flood Inundation Mapping Network – mapping software to follow flooding risks based on gage data and get real-time gage information (tied to FEMA floodplain maps, smaller channels that are not “mapped” are not included)
NC State Climate Office – NC Rainfall Data
National Oceanic and Atmospheric Administration (NOAA) – US Climate Data
The Hydrologist Next Door 