National Weather Service United States Department of Commerce
Open Lake Marine Zone Forecasts by the Buffalo, NY Forecast Office - click on the area of interest

map showing marine forecast zones on the open waters of Lake Ontario

Open Lake Forecast for Lake Ontario    (All Zones - Includes Synopsis and MAFOR)  

Experimental Modernized Open Lake Forecast for Lake Ontario

Nearshore Marine Forecasts

Great Lakes Marine Weather Portal - Includes point forecasts

Great Lakes Water Level Data

Marine Weather for Canada

Great Lakes Open Lake forecasts are subdivided by zone, each identified by text description and a Universal Generic Code (UGC). The different colors used in the map above have no meaning and are only intended to assist in differentiating the zones.

These forecasts are also available via e-mail

NOTICE - Check time and date of forecasts. Linked data may not represent the latest forecast. The Internet is not part of the National Weather Service's operational data stream and should never be relied upon as a means to obtain the latest forecast and warning data. Become familiar with and use other means such as NOAA Weather Radio to obtain the latest forecasts and warnings. Please read our DISCLAIMER

Visit the Buffalo, NY Forecast Office which provides links to additional products as well as regionally focused information such as point-specific marine forecasts, predicted tides and buoy observations.

Text Interface Version of this page.LOZ062 Niagara River to Hamlin Beach NY beyond 5 NM offshore to U.S./Canadian border LOZ063 Hamlin Beach to Sodus Bay NY beyond 5 NM offshore to U.S./Canadian border LOZ064 Sodus Bay to Mexico Bay NY beyond 5 NM offshore to U.S./Canadian border LOZ065 Mexico Bay NY to the St. Lawrence River beyond 5 NM offshore to U.S./Canadian border LOZ062 Niagara River to Hamlin Beach NY beyond 5 NM offshore to U.S./Canadian border LOZ063 Hamlin Beach to Sodus Bay NY beyond 5 NM offshore to U.S./Canadian border LOZ064 Sodus Bay to Mexico Bay NY beyond 5 NM offshore to U.S./Canadian border LOZ065 Mexico Bay NY to the St. Lawrence River beyond 5 NM offshore to U.S./Canadian border