NOAA Marine Observation Backbone

Portal maintained National Oceanic and Atmospheric Administration (NOAA) locate and identify, and provide links to line offices and their observing systems.
http://mob.ndbc.noaa.gov/cgi-bin/mob.cgi

Oceanweather Inc.

Offers global, regional, and site specific forecasting based upon aggregate wind barb, current and sea surface temperature (SST) data.
http://www.oceanweather.com/

Intellicast.com - Sail

Provides sailing forecasts based upon weather and wind. Find satellite and radar imagery, and links.
http://www.intellicast.com/Sail/

National Data Buoy Center

Offers recent and historical observations recorded by the National Oceanic and Atmospheric Administration (NOAA) and administered by the National Weather Service of the United States.
http://seaboard.ndbc.noaa.gov/

WWW Tide/Current Predictor

Generates predictions for harmonic tide and current conditions. Features links to related resources. Hosted by the Department of Biological Sciences, University of South Carolina.
http://tbone.biol.sc.edu/tide/sitesel.html

Weather Navigator - World Offshore Observations

Find forecasts based upon station plot maps divided by region. Generated by the Weather Research Center.
http://www.wxresearch.com/off.htm

Marine Weather Links

Features links to forecasts, model outputs, satellite and radar images.
http://weather.communitycomputing.com/owl/marine/index.asp

National Boating Weather Report

Provides forecasts for small craft surface operations. Includes 12 and 24 hour prediction maps for US coastal waters.
http://www.marinersguide.com/weather

California Surf Report and Forecast

Offers swell period charts and off shore wave height maps, as well as infrared, satellite and radar images.
http://www.slonet.org/~tsulaiti/surfreport/

iWindsurf.com - Wind and Forecasts

Offers information on wind and current conditions for US and Canadian waterways.
http://www.iwindsurf.com/windandwhere.iws

Storm Warning: Advancements in Marine Communications and Forecasting

Provides information on the wreck of the Edmund Fitzgerald and the fall storm season on the Great Lakes. Find forecast and warnings definitions and related links. Hosted by the Marquette, Michigan National Weather Service.
http://www.crh.noaa.gov/mqt/fitzgerald/

Marine Weather @ Weather.org

Provides forecast map of US waters based upon wind speed and mean-sea-level pressure (MSLP) data. Also features links to forecasts for major US ports.
http://weather.org/marine_weather.htm

Captain's Weather

Features forecasts from the Canadian Maritimes to the US Gulf coast from data derived from the US National Weather Service and Environment Canada.
http://www.captainsweather.com/

YBW.com Weather

Find location and shipping forecasts for UK coastal waters. Includes 14 day tide tables.
http://www.ybw.com/weather/home.html

Boating and Beaching Weatherman

Customized weekly New England and Mid-Atlantic marine and beach forecasts, hosted by television meteorologist R.J. Heim in Providence, Rhode Island.
http://www.boatingandbeachingweatherman.com

Current Weather and Forecasts for Coastal Regions

Offers forecasts for surface operations in US coastal waters, including Puerto Rico. Find sea surface and state charts, buoy data, upper air charts, and tide tables.
http://www.auxonline.org/~futureweb/Weather/Marine_weather_brief/main_for_marine_wx.htm

Weatherzone - NSW/ACT Marine Weather

Find warnings, wind speed and mean-sea-level pressure (MSLP) data charts, swell conditions, and forecasts for Australian waters.
http://www.weatherzone.com.au/marine/state.jsp

National Hurricane Center (Atlantic)

Reports active tropical cyclones in the Atlantic, Caribbean, and the Gulf of Mexico.
http://www.nhc.noaa.gov/index-at.xml

National Hurricane Center (Eastern Pacific)

Provides current information on active tropical cyclones in the Eastern Pacific.
http://www.nhc.noaa.gov/index-ep.xml

SailFlow

Weather service designed specifically for nearshore sailors. Provides animated radar, satellite, and wind information.
http://www.sailflow.com

Marine-meteo.com

Marine forecasts including pressure, winds, and waves for France, Europe and World in English and French.
http://www.meteo-marine.com/

Decoded Offshore Weather Data

Features worldwide coverage of buoy data charts. Hosted by Florida State University.
http://www.coolwx.com/buoydata/

Gulf of Maine Ocean Observing System

Provides recent and historical weather and oceanographic information about the Gulf of Maine from buoys, satellites and models.
http://www.gomoos.org