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CLICK ON THE MAP for links to Marine Forecast Offices and Centers. Clicking on an office/center of interest will take you to their webpage where you will find regionally focused information.

Did you know that the height of some individual waves may be twice the height of the forecast seas? And may present an even greater danger near shore or any shallow waters?

Items of Interest to Mariners

• Discontinuation of NWS High Seas and Storm Warnings over NIST Time Frequency Broadcasts Effective January 31, 2019
  
• Experimental Modernized Open Lake Forecast - Lake Michigan
  
• New Radiofax broadcast schedules for Boston, Pt. Reyes and Kodiak beginning 9/19/18 Service Change Notice
• Recent and Upcoming Changes to Marine Forecasts and Services
• 72 hour forecast charts available via FTPMail and Web OPC 72 hour Forecast Graphics
• Attention Safetynet Users InMarsat satellite migration plans during 2018
• Attention OPC Website Users! OPC website URL address changing September 26, 2017
• ATTENTION FTPMAIL USERS! New e-mail address for using the FTPMail service
• EFFECTIVE MARCH 7, 2017, Cell.weather.gov discontinued. Use Marine Cell Pages Termination Notice
• New Cold Water Hazards and Safety Webpage
• Going to the Beach? Check out the Experimental Beach Forecast Page.
• Marine Weather in the News,  More,  More,  More,  More ,   More ,   More ,   More
• US Coast Guard Mobile App...your safe boating needs in one app
• Have you registered your 406 MHz EPIRB?.....EPIRB's Save Lives!
• 406MHz Saved by the Beacon National Campaign"
• Don't rely on your cellphone...VHF marine radios are useful and a lifesaver
• Question? Answer is probably in our FAQ
• We appreciate feedback

Marine Text Forecasts and Products

• Coastal/Great Lakes Marine Text Forecasts by Zone - Graphic Interface Try me first!
• Offshore Marine Text Forecasts by Zone - Graphic Interface
• High Seas Marine Text Forecasts by Area - Graphic Interface
• Point Forecasts - (Including lat/lon entry, forecast-at-a-glance & hourly wx graph) Try me!
• Most Popular Marine Text Forecasts (sorted by product type....low speed friendly)
• Marine Cell Pages ...requires iPhone, Droid, etc.
• Marine Text Forecasts by Zone - Text Interface (now with NWR SAME codes)
• Marine Text Forecasts and Products (lengthy listing of most text products)
• Forecasts for NOAA Marine Sanctuaries
• Predicted Tides and Currents
• More...

Graphic Marine Forecasts and Products

• Radiofax Charts
• Weather Charts
• U.S. Weather Maps
• NDFD Graphical Forecasts Try me!
• Proposed replacement of above which includes several offshore
  and high seas areas....example(wind) ....example(waves)
• Model Guidance from the Marine Modeling and Analysis Branch
• "Operational Forecast System" Model Guidance from the National Ocean Service
• Great Lakes DMAWDS
• More...

• Buoy, C-MAN, Ship, Drifters, Gliders, HF Radar and More
• PORTS^®
• Coastal Water Temperature Guide
• Gulf Stream and Sea Surface Temperatures
• NEXRAD Doppler RADAR
• GOES Satellite Imagery and Products
• Ocean Surface Winds and Other Data Derived from Satellites
• Tides and Water Levels (some stations also have meteorological sensors)
• NCEP Central Operations Display of Surface Data
• Worldwide Voluntary Observing Ship Program
• More...

Marine Weather Portals

• Experimental National Marine Weather Web Portal
• Great Lakes Marine Weather Portal
• SECOORA/IOOS Marine Weather Portal for SE U.S.
• National Ocean Service's NowCOAST for Mariners
• Naval Oceanography Portal

Dissemination Information

• INTERNET Read me!
  Marine weather products via the Internet 
• NOAA WEATHER RADIO 
  Voice broadcasts of coastal marine forecasts on a continuous cycle
• USCG HF RADIOFAX
  Broadcast of high seas weather maps 
• WWV, WWVH HF VOICE (TIME TICK)
  Voice broadcast of high seas warnings 
• USCG HF SITOR (NBDP)
  Broadcast of high seas and offshore forecasts in text form. 
• USCG HF VOICE:
  Broadcast of high seas forecasts and storm warnings via single sideband (SSB) radio
• USCG MF VOICE: (Discontinued)
  Broadcast of offshore forecasts and storm warnings via single sideband (SSB) radio
• USCG VHF VOICE: 
  Broadcast of coastal forecasts and storm warnings 
• USCG AIS BROADCAST:
  Broadcast of Observations via the Automatic Identification System (AIS) 
• COMMERCIAL MARITIME COAST STATIONS and WEATHER NETS 
  Weather broadcasts from commercial coast stations and weather nets
• COMMERCIAL SERVICES PROVIDING MARINE FORECASTS VIA SATELLITE
  Weather broadcasts from commercial satellite services
• AMATEUR "HAM" RADIO  
  Marine forecasts made available by radio amateurs for the small boat and yachting communities. 
• ALASKA MARINE VHF VOICE 
  NOAA broadcast of offshore forecasts, coastal forecasts, and storm warnings for the state of Alaska
• ALASKA MARINE HF VOICE - 4125 kHz 
  NOAA broadcast of offshore forecasts, coastal forecasts, and storm warnings for the state of Alaska 
• COASTAL WARNING DISPLAY PROGRAM 
  Visual signals to alert mariners of storms at sea
• GMDSS 
  Provides emergency and safety communications and disseminates Maritime Safety Information 
• NAVTEX 
  USCG broadcast of offshore forecasts and storm warnings in text form 
• INMARSAT-C SafetyNET 
  Broadcast of high seas forecasts and warnings via satellite
• SPACE WEATHER .........More
  Sunspots and other phenomena affecting radio and satellite reception 
• DMAWDS 
  Graphical display of NWS model data for the Great Lakes
• PORTS 
  Real-time information that supports safe and cost-efficient navigation
• EMWIN 
  Suite of methods of making available a live data stream of basic weather data
• NOAA WEATHER WIRE SERVICE  
  Primary telecommunications network for NWS forecasts, warnings, and other products to the mass media, emergency management agencies, and private weather services 
• NOAAPORT 
  Satellite broadcast of NWS forecasts, warnings, and other products to the mass media, emergency management agencies, and private weather services 
• NEXRAD Radar Product Central Collection/Distribution Service (RPCCDS)  
  Real-time weather radar images 
• NOAA WEATHER SATELLITES  
  NOAA geostationary and polar-orbiting satellites 
• MASS MEDIA 
  Commercial radio, TV, and other media 
• PRIVATE WEATHER SERVICES PROVIDERS  
  Value-added and unique weather products from private weather services 
• NOAA TELEPHONE RECORDINGS 
  Recorded marine forecasts , Dial-A-Buoy and PORTS. 
• PUBLICATIONS 
  Marine Weather Services maps and other publications 
• PHONE NUMBERS and ADDRESSES  
  Contacts for questions or comments