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Marine watches and Warnings NWS Safe Boating Information Home Page NWS Marine Warnings, Watches and Advisories What to do before going out on the water Safety: What to do while out on the water to stay safe How dangerous is boating under the influence of drugs or alcohol?


marine alerts map, text equivalent below

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Safe Boating Navigation bar, hover for links NWS Marine Weather Forecasts Home Page Safe Boating Week Resources Boating Under the Influence, how much is too much? NWS Marine observations Hurricane Preparedness Information for Mariners, Boaters NWS Marine Weather Portals, Starting points Marine Publications and resources for outreach and education Marine and safe boating links Marine Information, Dissemination link Marine, Boating Weather Frequently Asked Questions


Coastal and Offshore Warnings, Watches and Advisories

NWS issues various types of marine warnings, watches and alerts for mariners. It is vital to understand and follow these alerts.

  • Marine Warning: Take Action! A warning is issued when dangerous conditions are imminent or occurring. If you are in at sea, take immediate action to protect yourself and your boat.
  • Marine Watch: Be Prepared: A watch is issued when conditions are favorable for a specific hazardous weather event to occur. This is the time to start preparing, not when a warning is issued.

To stay on top of all weather alerts, check weather.gov or your favorite weather site frequently.

Coastal Waters Forecasts

coast water forecast links

Coastal and Great Lakes forecasts are subdivided by zone, each identified by text description and a Universal Generic Code (UGC). The text of these forecasts is online at NWS Marine Text Forecasts and Products Listing, which also serves as an alternate source of data. These forecasts are produced by local National Weather Service Forecast Offices. This page is also available in a text version which includes a synopsis for most of these areas. Similar webpages for Offshore Marine Forecasts by Zone and High Seas Forecasts are also available. These forecasts are also available via e-mail

For a complete listing of marine forecast products, see the Marine Forecasts, which offers frequency and broadcast schedule information as well as links to products and related information.


Offshore Weather Forecasts

Offshore Waters forecasts are subdivided by zone, each identified by text description and a Universal Generic Code (UGC). These forecasts are prepared by:

For a complete list of NWS marine forecast products, see the Marine Forecasts, which contains information on the dissemination of NWS marine weather forecasts including frequency and broadcast schedule information as well as links to products and related information.