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Data sources
| Source | Credit | Basis for reuse | Link |
|---|---|---|---|
| USGS Water Data API, NLDI, daily statistics | Data: U.S. Geological Survey | Terms read 2026-10-16 | Terms |
| National Weather Service api.weather.gov | Forecasts, alerts and observations: National Weather Service. NWS material is not subject to copyright | Terms read 2026-10-16 | Terms |
| NOAA National Water Prediction Service (flood stages, river forecast, National Water Model) | River forecasts and flood stages: National Weather Service. National Water Model guidance: NOAA. | Written permission reported by the site owner | Terms |
| NOAA River Forecast Center precipitation estimates and NWS radar imagery | Rain estimates and radar: NOAA and National Weather Service | Written permission reported by the site owner | Terms |
| USGS PAD-US public land | Public land: USGS Protected Areas Database of the United States | Written permission reported by the site owner | Terms |
| Pennsylvania Fish and Boat Commission layers via PASDA | Written permission reported by the site owner | Terms | |
| USGS The National Map (USGS Topo map service) | Map services and data available from U.S. Geological Survey, National Geospatial Program | Terms read 2026-10-16 | Terms |
| USDA NRCS SNOTEL (AWDB web service) | Snow data: U.S. Department of Agriculture, Natural Resources Conservation Service | Terms read 2026-10-16 | Terms |
| NOAA Climate Prediction Center 8 to 14 day outlook (NWS map service) | Outlook: NOAA Climate Prediction Center | Terms read 2026-10-16 | Terms |
NWS material is public domain and not subject to copyright. Sources whose terms are not yet settled are not used on the site.