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High Tide Flooding Products from NOAA CO-OPS

Published by Center for Operational Oceanographic Products and Services | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 10, 2026 at 09:08 AM | Dataset Last Updated: January 01, 2016 at 12:00 AM
High tide flooding is the overflow or excess accumulation of water that covers typically dry coastal land and occurs during high tides. As relative sea levels rise, high tide flooding (HTF) is occurring more frequently, even on sunny days. HTF creates short term impacts like road closures, overflowing storm drains, and temporary business closures. Over the long term, recurrent HTF causes more severe impacts like damage to below-ground infrastructure and degraded wetlands. Through NOAA's National Ocean Service (NOS), the Center for Operational Oceanographic Products and Services (CO-OPS) and its predecessors have gathered oceanographic data along our nation's coasts for over 200 years to protect life, property, and the environment. Serving both the public and other government agencies, CO-OPS is the authoritative source for accurate, reliable, and timely water-level and current measurements that support safe and efficient maritime commerce, sound coastal management, and recreation. As part of those roles, CO-OPS offers a suite of interactive products that helps communities understand when, where, and how often high tide flooding may occur along the coast to better inform their coastal flood planning and mitigation efforts. The suite includes a summary of historical HTF days as well as Monthly and Annual HTF Outlooks which are produced for specific stations.

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EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > COMPOUND EXTREME EVENTS EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING EARTH SCIENCE > OCEANS EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT EARTH SCIENCE > OCEANS > COASTAL PROCESSES > TIDAL HEIGHT EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING EARTH SCIENCE > OCEANS > TIDES

Complete Metadata
@type dcat:Dataset
accessLevel non-public
accrualPeriodicity R/P1M
contactPoint 
                                            {
  "fn": "Not provided - Contact data.gov",
  "hasEmail": "mailto:datagovsupport@gsa.gov"
}
describedBy https://www.tidesandcurrents.noaa.gov/publications/techrpt86_PaP_of_HTFlooding.pdf
describedByType application/octet-steam
description High tide flooding is the overflow or excess accumulation of water that covers typically dry coastal land and occurs during high tides. As relative sea levels rise, high tide flooding (HTF) is occurring more frequently, even on sunny days. HTF creates short term impacts like road closures, overflowing storm drains, and temporary business closures. Over the long term, recurrent HTF causes more severe impacts like damage to below-ground infrastructure and degraded wetlands. Through NOAA's National Ocean Service (NOS), the Center for Operational Oceanographic Products and Services (CO-OPS) and its predecessors have gathered oceanographic data along our nation's coasts for over 200 years to protect life, property, and the environment. Serving both the public and other government agencies, CO-OPS is the authoritative source for accurate, reliable, and timely water-level and current measurements that support safe and efficient maritime commerce, sound coastal management, and recreation. As part of those roles, CO-OPS offers a suite of interactive products that helps communities understand when, where, and how often high tide flooding may occur along the coast to better inform their coastal flood planning and mitigation efforts. The suite includes a summary of historical HTF days as well as Monthly and Annual HTF Outlooks which are produced for specific stations.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Monthly High Tide Flooding Outlook",
    "accessURL": "https://tidesandcurrents.noaa.gov/high-tide-flooding/monthly-outlook.html",
    "mediaType": "text/html",
    "description": "CO-OPS monthly high tide flooding outlook page",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Annual High Tide Flooding Outlook",
    "accessURL": "https://tidesandcurrents.noaa.gov/high-tide-flooding/annual-outlook.html",
    "mediaType": "text/html",
    "description": "CO-OPS annual high tide flooding outlook page",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "CO-OPS Inundation Dashboard page",
    "accessURL": "https://tidesandcurrents.noaa.gov/inundationdb/",
    "mediaType": "text/html",
    "description": "CO-OPS Coastal Inundation Dashboard",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "CO-OPS Derived Product API",
    "accessURL": "https://api.tidesandcurrents.noaa.gov/dpapi/prod/",
    "mediaType": "text/html",
    "description": "CO-OPS Derived Product API (DPAPI)",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GitHub code for HTF Predictions",
    "accessURL": "https://github.com/NOAA-CO-OPS/Seasonal_High_Tide_Flooding_Prediction",
    "mediaType": "text/html",
    "description": "CO-OPS GitHub access",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Full Metadata Record",
    "accessURL": "https://www.fisheries.noaa.gov/inport/item/70135",
    "mediaType": "text/html",
    "description": "View the complete metadata record on InPort for more information about this dataset.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Entity Attribute Detail URL",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Entity Attribute Detail URL",
    "downloadURL": "https://www.tidesandcurrents.noaa.gov/publications/techrpt86_PaP_of_HTFlooding.pdf",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/nos/coops/iso/xml/70135.xml
issued 2016-01-01T00:00:00.000+00:00
keyword 
                                            [
  "EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > COMPOUND EXTREME EVENTS",
  "EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > EXTREME WEATHER",
  "EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING",
  "EARTH SCIENCE > OCEANS",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > TIDAL HEIGHT",
  "EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING",
  "EARTH SCIENCE > OCEANS > TIDES",
  "EARTH SCIENCE > OCEANS > TIDES > STORM SURGE",
  "EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT",
  "EARTH SCIENCE > OCEANS > TIDES > TIDAL RANGE",
  "CONTINENT > NORTH AMERICA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CONNECTICUT",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DISTRICT OF COLUMBIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW JERSEY",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > RHODE ISLAND",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA",
  "CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > MIDWAY ATOLL",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > WAKE ISLAND",
  "OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM",
  "OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > MARSHALL ISLANDS",
  "ACOUSTIC SOUNDERS",
  "PRESSURE SENSORS > PRESSURE SENSORS",
  "TIDE GAUGES > TIDE GAUGES",
  "WATER LEVEL GAUGES > WATER LEVEL GAUGES",
  "GOES > NOAA Geostationary Operational Environmental Satellites",
  "Coastal Sea Level Stations",
  "NWLON > National Water Level Observation Network",
  "NWLON station",
  "PORTS > Physical Oceanographic Real-Time System",
  "coastal monitoring",
  "tides and currents",
  "water level predictions",
  "Coastal U.S. territories",
  "Coastal United States",
  "Gulf of Mexico",
  "Microwave Water Level (MWWL) Sensor",
  "DOC/NOAA/NOS/CO-OPS > Center for Operational Oceanographic Products and Services, National Ocean Service, NOAA, U.S. Department of Commerce",
  "CO-OPS Metadata Library"
]
landingPage https://www.fisheries.noaa.gov/inport/item/70135
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-01-01T00:00:00.000+00:00
publisher 
                                            {
  "name": "Center for Operational Oceanographic Products and Services",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -66.9,-14.3,144.6,61.24
temporal 2016-01-01T00:00:00+00:00/2016-01-01T00:00:00+00:00
title High Tide Flooding Products from NOAA CO-OPS

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