The USGS reports document New Jersey floods from 1896 to the present. Early spring and winter flooding in New Jersey tends to occur as a result of widespread, steady rain of moderate intensity that falls on frozen ground. Snow and ice melt may increase the chance of winter flooding. Summer flooding resulting from thunderstorms typically occurs in small streams and is of local extent. Late summer and fall flooding associated with frontal storms, tropical storms and hurricanes can be widespread, resulting from heavy intense rains across the entire state. New Jersey's major floods are those that are the most severe in terms of magnitude, areal extent, loss of life, and property damage.
Flooding can be a serious problem in many parts of New Jersey. Information on floods and analyses of flood data are needed to aid in the design of bridges, culverts, dams, highways, and buildings, and for the prudent management of flood-prone areas. Documentation of floods and a more thorough understanding of flood hydrology and hydraulics will result in more effective management of flood plains and design of structures.
The New Jersey Water Science Center (NJWSC) provides information on the magnitude and frequency of floods to agencies and individuals involved in flood-protection, planning, and design. The NJWSC also develops regional flood-frequency relations for streams in New Jersey to allow flood-frequency determinations at locations without stream gages and conducts local site studies using hydrologic and hydraulic analyses.
Found here are links to Reports Studies, and other useful links to New Jersey Flood Science.
NOTE: Flood peak discharges and estimates of flood recurrence intervals given in older USGS reports and web summaries may have been revised since their original publication. Check on-line peak flow for current discharges.
National Weatehr Service Flood Safety Information
New Jersey Water Science Center Webcams
New Jersey Coastal Surge, Wave, and Tide Hydrodynamics Network (SWaTH)
Long-term Water Monitoring Networks in New Jersey
New Jersey Tide Network
Floods: Recurrence intervals and 100-year floods
How do we know or measure if a flood that could happen tomorrow is worse than one that happened 2, 10 or 50 years ago? If heavy rain is being forecasted does that mean that rivers are going to rise and spill over their banks and flood your neighborhood? These are some of the questions that we think about when flooding or heavy rain is forecast by public media or the National Weather Service (NWS).
New Jersey Flood Reports
Hurricanes and Storm-Tide Monitoring
Summary of recent flood and high-flow conditions (Water Watch)
WaterWatch - Floods NJ
Real-Time Interactive Map of Floods and High Flow conditions in New Jersey
Below are publications associated with this project.
Flood Magnitude and Frequency of the Delaware River in New Jersey, New York, and Pennsylvania
Somerset County Flood Information System
New Jersey Tide Telemetry System
Real-time surface-water monitoring in New Jersey, 2003
Flood Inundation Mapper
USGS Flood Inundation Maps, along with Internet information regarding current stage from the USGS streamgage, provide emergency management personnel and residents with information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.
- Overview
The USGS reports document New Jersey floods from 1896 to the present. Early spring and winter flooding in New Jersey tends to occur as a result of widespread, steady rain of moderate intensity that falls on frozen ground. Snow and ice melt may increase the chance of winter flooding. Summer flooding resulting from thunderstorms typically occurs in small streams and is of local extent. Late summer and fall flooding associated with frontal storms, tropical storms and hurricanes can be widespread, resulting from heavy intense rains across the entire state. New Jersey's major floods are those that are the most severe in terms of magnitude, areal extent, loss of life, and property damage.
Flooding can be a serious problem in many parts of New Jersey. Information on floods and analyses of flood data are needed to aid in the design of bridges, culverts, dams, highways, and buildings, and for the prudent management of flood-prone areas. Documentation of floods and a more thorough understanding of flood hydrology and hydraulics will result in more effective management of flood plains and design of structures.
The New Jersey Water Science Center (NJWSC) provides information on the magnitude and frequency of floods to agencies and individuals involved in flood-protection, planning, and design. The NJWSC also develops regional flood-frequency relations for streams in New Jersey to allow flood-frequency determinations at locations without stream gages and conducts local site studies using hydrologic and hydraulic analyses.
Found here are links to Reports Studies, and other useful links to New Jersey Flood Science.
NOTE: Flood peak discharges and estimates of flood recurrence intervals given in older USGS reports and web summaries may have been revised since their original publication. Check on-line peak flow for current discharges.
Screen capture of New Jersey on the USGS Flood Inundation Mapper - Science
National Weatehr Service Flood Safety Information
New Jersey Water Science Center Webcams
Static webcams have been installed at a number of real-time stream-gaging locations in New Jersey to allow you to view the current river-stage conditions. These webcams provide valuable information to the National Weather Service, emergency managers, and area residents to evaluate real-time conditions in river environments during storms.New Jersey Coastal Surge, Wave, and Tide Hydrodynamics Network (SWaTH)
Following Hurricane Sandy, the USGS began construction of an overland Surge, Wave, and Tide Hydrodynamics (SWaTH) Network along the Northeastern Atlantic Coast from North Carolina to Maine. This network, developed collaboratively with numerous partners, features the integration of long-term tide gage networks, with real-time rapid-deployment gages (RDG) and mobile storm-tide sensors (STS). An...Long-term Water Monitoring Networks in New Jersey
The accurate, long-term monitoring networks of New Jersey Water Science Center provide valuable data in real-time and historical perspective to compare that data to. The longer a monitoring location is in operation, the more valuable it becomes, since more statistical comparisons can be performed. Our field technicians continuously make field measurements and maintain these networks.New Jersey Tide Network
USGS monitors data for estuary and back-bay areas all along the New Jersey coast and links to related projects with more information about coastal flood hazards, water quality, and other topics. The USGS operates the most extensive satellite network of tide-gaging stations in the region, many of which form the backbone of flood-warning systems. The USGS provides current ("real-time") water-level...Floods: Recurrence intervals and 100-year floods
How do we know or measure if a flood that could happen tomorrow is worse than one that happened 2, 10 or 50 years ago? If heavy rain is being forecasted does that mean that rivers are going to rise and spill over their banks and flood your neighborhood? These are some of the questions that we think about when flooding or heavy rain is forecast by public media or the National Weather Service (NWS).
New Jersey Flood Reports
USGS reports document New Jersey floods from 1896 to the present.Hurricanes and Storm-Tide Monitoring
The USGS works in partnership with other federal and state agencies to provide scientific data about coastal flood hazards. The New Jersey Water Science Center (NJWSC) maintains a network of continuously operating tide gages along the back bays of New Jersey which provide publicly available water-level and meteorological data to monitor coastal flood conditions. The USGS NJWSC coordinates with our... - Data
Summary of recent flood and high-flow conditions (Water Watch)
WaterWatch - Floods NJ
Real-Time Interactive Map of Floods and High Flow conditions in New Jersey
- Publications
Below are publications associated with this project.
Flood Magnitude and Frequency of the Delaware River in New Jersey, New York, and Pennsylvania
From September 2004 to June 2006, the Delaware River in New Jersey, New York, and Pennsylvania experienced three major floods that caused extensive damage. The Federal Emergency Management Agency (FEMA) needed updated information on the flood magnitude and frequency for the eight active streamflow-gaging stations along the main stem Delaware River in New Jersey, New York, and Pennsylvania that incSomerset County Flood Information System
The timely warning of a flood is crucial to the protection of lives and property. One has only to recall the floods of August 2, 1973, September 16 and 17, 1999, and April 16, 2007, in Somerset County, New Jersey, in which lives were lost and major property damage occurred, to realize how costly, especially in terms of human life, an unexpected flood can be. Accurate forecasts and warnings cannotNew Jersey Tide Telemetry System
Each summer the population of the barrier-island communities of New Jersey increases by tens of thousands. When a coastal storm threatens these communities, the limited number of bridges and causeways that connect the islands with the mainland become overcrowded, making evacuations from the barrier islands to the mainland difficult. Timely evacuation depends on well-defined emergency evacuation plReal-time surface-water monitoring in New Jersey, 2003
A network of 93 gaging stations that provide surface-water stage, flow (discharge), and tide-level data on a “realtime” basis through satellite, radio, and telephone telemetry is operating (May 2003) in New Jersey through a cooperative effort of the U.S. Geological Survey (USGS) and other agencies. The stream data from these stations are transmitted every 1 to 4 hours and then are immediately post - Web Tools
Flood Inundation Mapper
USGS Flood Inundation Maps, along with Internet information regarding current stage from the USGS streamgage, provide emergency management personnel and residents with information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.