Marine, Tropical and Tsunami Services Branch
National Program
Great Lakes Marine Weather Portal - Includes point forecasts
Open Lake Forecast for Lake Ontario (All Zones - Includes Synopsis and MAFOR)
Experimental Modernized Open Lake Forecast for Lake Ontario
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
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Marine, Tropical and Tsunami Services Branch
1325 East-West Hwy, 13th floor
Communications Office
Silver Spring, MD 20910
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