National Observations / Philadelphia/Mount Holly
100 mi

Resources

Hydrologic Resource Links

Additional Resource Links

Unique Local Data

Additional USGS river gages can be found at the following Water Science Center links.

New Jersey
Pennsylvania
Delaware
Maryland

Additional water and weather forecasts can be found at the following Middle Atlantic River Forecast Center links.

72 Hour Precipitation Forecasts Used to Produce Hydrologic Forecasts

Amount of Rain Needed to Produce River Flooding Across Select Fast Responding Basins

New Jersey
Pennsylvania

Amount of Rain Needed to Produce Flash Flooding

1 Hour Rainfall
3 Hour Rainfall
6 Hour Rainfall

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information

National Weather Service
Philadelphia/Mount Holly
732 Woodlane Road
Mount Holly, NJ 08060-9615