Elevation artifacts in digital bathymetric and topographic models for United States east (east_cdem_v1.tif) and west (west_cdem_v.tif) coasts (polygon shapefile, geographic, NAD83)

Investigations of coastal change and coastal resources often require continuous elevation profiles from the seafloor to coastal terrestrial landscapes. Differences in elevation data collection in the terrestrial and marine environments result in separate elevation products that may not share a vertical datum. This data release contains the assimilation of multiple elevation products into a continuous digital elevation model at a resolution of 3-arcseconds (approximately 90 meters) from the terrestrial landscape to the seafloor for the contiguous U.S., focused on the coastal interface. All datasets were converted to a consistent horizontal datum, the North American Datum of 1983, but the native vertical datum for...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, CMGP, California, Canadian Hydrographic Service, Chesapeake Bay, All tags... Coastal and Marine Geology Program, Connecticut, DEM, Delaware, Depth, Florida, Florida Keys, Georgia, Gulf of Maine, Gulf of Mexico, Long Island, Louisiana, Maine, Maryland, Massachusetts, Middle Atlantic Bight, Mississippi, NED, NOAA, National Oceanic and Atmospheric Association, New England, New Jersey, New York, North Carolina, Northwestern Atlantic Ocean, Oregon, Puget Sound, South Atlantic Bight, South Carolina, Texas, U.S. Geological Survey, USGS, United States, Vector data, Virginia, WHCMSC, Washington, Woods Hole Coastal and Marine Science Center, digital elevation models, geoscientificInformation, land surface characteristics, oceans, Fewer tags

Shorelines of the Florida north (FLnorth) coastal region used in shoreline change analysis

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bald Point State Park, CMGP, Coastal and Marine Geology Program, DSAS, Digital Shoreline Analysis System, All tags... Dog Island, FL, FLDEP, Florida, Florida Department of Environmental Protection, Gulf Islands National Seashore, Gulf of Mexico, HWL, High Water Line, Laguna Beach, MHW, Mean High Water, NOAA, NOS, National Assessment of Shoreline Change Project, National Ocean Service, National Oceanic and Atmospheric Administration, North America, Panama City Beach, Pensacola Beach, Santa Rosa Island, Shoreline, Shoreline Change, St. George Island, St. Joseph Peninsula, St. Vincent National Wildlife Refuge, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, Fewer tags

Great Lakes, USA: water level observation network

These data show the spatial distribution of individual coastal ocean observing systems in the United States.

Tags: great lakes, hydrography, noaa, ocean, remote sensing

Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for Alabama

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Types: Citation; Tags: AL, Alabama, CMGP, CSC, Coastal Services Center, All tags... Coastal and Marine Geology Program, DSAS, Database IV format, Dauphin Island, Digital Shoreline Analysis System, Fort Morgan, Gulf Shores, Gulf of Mexico, HWL, High Water Line, MHW, Mean High Water, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, North America, Orange Beach, Shoreline Change, U.S. Geological Survey, USGS, United States, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, high water line offsets, high water line uncertainty, lidar uncertainty, oceans, proxy-datum bias, Fewer tags

Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for Louisiana

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Types: Citation; Tags: Breton Islands, Breton National Wildlife Refuge, CMGP, CSC, Chandeleur Islands, All tags... Coastal Services Center, Coastal and Marine Geology Program, DSAS, Database IV format, Digital Shoreline Analysis System, East Timbalier Island, Grand Isle, Grand Terre Islands, Gulf of Mexico, HWL, High Water Line, Isles Dernieres, LA, Lanaux Island, Louisiana, MHW, Mean High Water, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, North America, Pelican Island, Shoreline Change, U.S. Geological Survey, USGS, United States, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, high water line offsets, high water line uncertainty, lidar uncertainty, oceans, proxy-datum bias, Fewer tags

Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for Florida north (FLnorth)

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Types: Citation; Tags: Bald Point State Park, CMGP, CSC, Coastal Services Center, Coastal and Marine Geology Program, All tags... DSAS, Database IV format, Digital Shoreline Analysis System, Dog Island, FL, Florida, Gulf Islands National Seashore, Gulf of Mexico, HWL, High Water Line, Laguna Beach, MHW, Mean High Water, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, North America, Panama City Beach, Pensacola Beach, Santa Rosa Island, Shoreline Change, St. George Island, St. Joseph Peninsula, St. Vincent National Wildlife Refuge, U.S. Geological Survey, USGS, United States, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, high water line offsets, high water line uncertainty, lidar uncertainty, oceans, proxy-datum bias, Fewer tags

Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for southeastern Florida (FLse)

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal...

Types: Citation; Tags: Atlantic Coast, Boca Raton, CMGP, CSC, Coastal Services Center, All tags... Coastal and Marine Geology Program, Cocoa Beach, DSAS, Database IV format, Delray Beach, Digital Shoreline Analysis System, FL, Florida, HWL, High Water Line, Hutchinson Island, Jupiter Island, Key Biscayne, MHW, Mean High Water, Melbourne Beach, Miami Beach, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, North America, Orchid Island, Palm Beach, Pompano Beach, Shoreline Change, St Lucie Inlet, U.S. Geological Survey, USGS, United States, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, high water line offsets, high water line uncertainty, lidar uncertainty, oceans, proxy-datum bias, Fewer tags

Uncertainty table for lidar-derived shorelines used when calculating rates in the Digital Shoreline Analysis System software for central North Carolina (NCcentral)

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal...

Types: Citation; Tags: Atlantic Coast, CMGP, CSC, Cape Hatteras, Cape Lookout, All tags... Coastal Services Center, Coastal and Marine Geology Program, DSAS, Database IV format, Digital Shoreline Analysis System, Green Island, HWL, High Water Line, Horsepen Point, MHW, Mean High Water, NC, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, North America, North Carolina, Ocracoke Inlet, Ocracoke Island, Portsmouth Island, Shoreline Change, U.S. Geological Survey, USGS, United States, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, high water line offsets, high water line uncertainty, lidar uncertainty, oceans, proxy-datum bias, Fewer tags

ESI Data

Environmental Sensitivity Index (ESI) maps are an integral component in oil-spill contingency planning and assessment. They serve as a source of information in the event of an oil spill incident. ESI maps are a product of the Hazardous Materials Response Division of the Office of Response and Restoration (OR&R;). ESI maps contain three types of information: shoreline habitats (classified according to their sensitivity to oiling), human-use resources, and sensitive biological resources.

Tags: a-16, a16, environmental sensitivity index, esi, federal, All tags... national, noaa, usa, Fewer tags

Shorelines of the southern North Carolina (NCsouth) coastal region used in shoreline change analysis

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal...

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Beach, Atlantic Coast, Bald Head Island, Bogue Banks, Browns Inlet, All tags... CERC, CERC map, CMGP, Cape Fear, Carolina Beach, Coastal Engineering Research Center, Coastal and Marine Geology Program, DSAS, Digital Shoreline Analysis System, Emerald Isle, HWL, High Water Line, Kure Beach, MHW, Mean High Water, NC, NOAA, NOS, National Assessment of Shoreline Change Project, National Ocean Service, National Oceanic and Atmospheric Administration, New River Inlet, North America, North Carolina, Shackleford Banks, Shoreline, Shoreline Change, Topsail Island, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, Wrightsville Beach, environment, geoscientificInformation, oceans, Fewer tags

NOAA, NCDC - Weather stations

Reference showing the station ID's and information for each station in the Federal Climate Complex ISH global database. ISH is a worldwide database of hourly and synoptic data, derived from TD9956 (DATSAV3 global hourly), TD3280 (US hourly), and TD3240 (US hourly precipitation).

Tags: climate, ncdc, noaa, uncertainty, weather stations

Buzzards Bay: continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf, (32-bit GeoTIFF, UTM 19 NAD 83, NAVD 88 vertical datum).

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south...

Tags: Barnstable County, Bristol County, Buzzards Bay, CZM, Cape Cod Canal, All tags... Cleveland Ledge, Commonwealth of Massachusetts, DEM, Dukes County, Elizabeth Islands, FEMA, Fall River, Federal Emergency Management Agency, LiDAR, Massachusetts Office of Coastal Zone Management, Mount Hope Bay, NOAA, NOS, National Ocean Service, National Oceanic and Atmospheric Administration, New Bedford, Plymouth County, Quicks Hole, Quicksand Point, Sow and Pigs Reef, Taunton River, Terrain Model, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States of America, Woods Hole, bathymetry, digital elevation models, echosounder, elevation, inlandWaters, multibeam, oceans, sea-floor characteristics, swath bathymetry, Fewer tags

Shorelines of the Texas west (TXwest) coastal region used in shoreline change analysis

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood...

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aransas Pass, Brazos Santiago Pass, Bureau of Economic Geology, The University of Texas at Austin, CMGP, Coastal and Marine Geology Program, All tags... DSAS, Digital Shoreline Analysis System, Gulf of Mexico, HWL, High Water Line, MHW, Mean High Water, Mustang Island, NOAA, NOS, National Assessment of Shoreline Change Project, National Ocean Service, National Oceanic and Atmospheric Administration, North America, Padre Island, Port Aransas, Rio Grande, Shoreline, Shoreline Change, South Padre Island, TX, Texas, U.S. Geological Survey, USGS, UT BEG, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, Fewer tags

Cape Cod Bay: continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf, (32-bit GeoTIFF, UTM 19 NAD 83, NAVD 88 vertical datum).

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south...

Tags: Barnstable County, Barnstable Harbor, Billingsgate Shoal, CZM, Cape Cod, All tags... Cape Cod Bay, Cape Cod Canal, Chatham Harbor, Commonwealth of Massachusetts, DEM, Green Harbor, Gurnet Point, LiDAR, Manomet Point, Massachusetts Office of Coastal Zone Management, NOAA, NOS, National Ocean Service, National Oceanic and Atmospheric Administration, Plymouth Bay, Plymouth County, Provincetown, Race Point, Sandy Neck, Terrain Model, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States of America, bathymetry, digital elevation models, elevation, fathometer, inlandWaters, lead line, multibeam, oceans, sea-floor characteristics, swath bathymetry, Fewer tags

Dune Metrics for the Massachusetts Coast as Derived From 2013–14 Topographic Lidar Data

This data release of dune metrics for the Massachusetts coast is part of a 2018 update to the Massachusetts Shoreline Change Project. Because of continued coastal population growth and the increased threat of coastal erosion, the Massachusetts Office of Coastal Zone Management (CZM) launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. Maps of historic shoreline locations from the mid-1800s to 1978 were produced from multiple data sources, and in 2001, a 1994 shoreline was added to enable the calculation of long- and short-term shoreline change rates. In 2013, the U.S. Geological Survey (USGS), in cooperation with CZM, delineated an additional oceanfront shoreline using 2007...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMGP, Coastal and Marine Geology Program, MA, Marine Geology, Massachusetts, All tags... NOAA, National Oceanic and Atmospheric Administration, Remote Sensing, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, coastal processes, dune crest, dune toe, dunes, elevation, environment, geomorphology, geoscientificInformation, geospatial analysis, geospatial datasets, oceans, Fewer tags

Shorelines of the Florida panhandle (FLph) coastal region used in shoreline change analysis

During Hurricane Irma in September 2017, Florida and Georgia experienced significant impacts to beaches, dunes, barrier islands, and coral reefs. Extensive erosion and coral losses result in increased immediate and long-term hazards to shorelines that include densely populated regions. These hazards put critical infrastructure at risk to future flooding and erosion and may cause economic losses. The USGS Coastal and Marine Hazards Resources Program (CMHRP) is assessing hurricane-induced coastal erosion along the southeast US coastline and implications for vulnerability to future storms. Shoreline positions were compiled prior to and following Hurricane Irma along the sandy shorelines of the Gulf of Mexico and Atlantic...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Coast, Baseline, CMGP, Coastal and Marine Geology Program, DSAS, All tags... Digital Shoreline Analysis System, FEMA, FLDEP, Federal Emergency Management Agency, Florida, Florida Department of Environmental Protection, Georgia, Gulf Coast, HWL, High Water Line, JALBTCX, Joint Airborne Lidar Bathymetry Technical Center of eXpertise, MHW, Mean High Water, NASA, NOAA, National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration, North America, Shoreline, Shoreline Change, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, coastal processes, environment, geoscientificInformation, geospatial datasets, oceans, Fewer tags

Acquisition and observation logs for seabed video and sediment samples from Stellwagen Bank during six surveys by the U.S. Geological Survey aboard the R/V Auk, May 2016 to April 2019

These data are a part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. The work was conducted in collaboration with the Stellwagen Bank National Marine Sanctuary, and the data collected will aid research on the ecology of fish and invertebrate species that inhabit the region. The Sanctuary's research vessel, R/V Auk, visited a total of 233 locations on Stellwagen Bank during six separate surveys from May 2016 to April 2019. During these surveys a customized...

Tags: Atlantic Ocean, CMHRP, Coastal and Marine Hazards and Resources Program, Massachusetts, Massachusetts Bay, All tags... NOAA, National Oceanic and Atmospheric Administration, North America, SBNMS, SEABOSS, SEABed Observation and Sampling System, Stellwagen Bank, Stellwagen Bank National Marine Sanctuary, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, field activity logs, field monitoring stations, geoscientificInformation, ground-truth, location, log book, marine biology, marine biology, marine geology, marine geology, navigational data, oceans, sea floor samples, sediment samples, stations, Fewer tags

Bias feature containing proxy-datum bias information to be used in the Digital Shoreline Analysis System for the southern coast of North Carolina from Cape Lookout to Cape Fear (NCsouth)

The U.S. Geological Survey (USGS) has compiled national shoreline data for more than 20 years to document coastal change and serve the needs of research, management, and the public. Maintaining a record of historical shoreline positions is an effective method to monitor national shoreline evolution over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers and planners understand which areas of the coast are vulnerable to change. This data release includes one new mean high water (MHW) shoreline extracted from lidar data collected in 2017 for the entire coastal region of North Carolina which is divided into four subregions: northern North Carolina...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Coast, CMHRP, CSC, Coastal Services Center, Coastal and Marine Hazards and Resources Program, All tags... DSAS, Digital Shoreline Analysis System, HWL, MHW, NOAA, National Oceanic and Atmospheric Administration, North Carolina, PDB, U.S. Geological Survey, USGS, USGS National Shoreline Change Project, United States, Woods Hole Coastal and Marine Science Center, coastal processes, environment, erosion, geoscientificInformation, geospatial datasets, high water line, mean high water, oceans, proxy-datum bias, shoreline accretion, Fewer tags

Shorelines of the Georgia (GA) coastal region used in shoreline change analysis

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal...

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Coast, CMGP, Coastal and Marine Geology Program, Cumberland Island, DSAS, All tags... Digital Shoreline Analysis System, GA, Georgia, HWL, High Water Line, Jekyll Island, MHW, Mean High Water, NOAA, NOS, National Assessment of Shoreline Change Project, National Ocean Service, National Oceanic and Atmospheric Administration, North America, Sapelo Island, Savannah River, Sea Island, Shoreline, Shoreline Change, St Catherines Island, Tybee Island, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States, WHCMSC, Wassaw Island, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, Fewer tags

NOAA - National Weather Service Current Weather Watches, Warnings, and Advisories

Watches, Warnings and Advisories A warning is issued when a hazardous weather or hydrologic event is occurring, imminent or likely. A warning means weather conditions pose a threat to life or property. People in the path of the storm need to take protective action. A watch is used when the risk of a hazardous weather or hydrologic event has increased significantly, but its occurrence, location or timing is still uncertain. It is intended to provide enough lead time so those who need to set their plans in motion can do so. A watch means that hazardous weather is possible. People should have a plan of action in case a storm threatens and they should listen for later information and possible warnings especially...

Tags: noaa, weather