Active Advisory: (US Severe Weather)
Forecast as of 9:31 PM EST on December 9, 2013
Small Craft Advisory in effect until 7 am EST Tuesday
St Lawrence River From Cape Vincent To St Regis
Southwest winds 15 to 20 knots. Mostly cloudy.
Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Mostly cloudy.
Southwest winds 10 to 15 knots. Cloudy.
Southwest winds 15 to 20 knots becoming west. Cloudy.
West winds 15 to 20 knots becoming northwest and diminishing to 5 to 10 knots. Cloudy.
West winds 5 to 15 knots. A chance of snow showers Thursday night.
West winds 10 knots or less becoming northwest. A chance of snow showers.
North winds 10 knots or less. A chance of snow during the day...then a chance of snow showers Saturday night.
Small Craft Advisory
Statement as of 11:45 PM EST on December 09, 2013
... Small Craft Advisory remains in effect until 7 am EST
* winds... southwest 15 to 20 knots.
A Small Craft Advisory means that wind speeds of 18 to 33 knots
and/or waves averaging 4 feet or more are expected to produce
hazardous wave conditions to small craft. Inexperienced
mariners... especially those operating smaller vessels... should
avoid navigating in these conditions.
Click any area for a Zone forecast. Click the Station ID for station data.
- Niagara River to Thirty-Mile Point NY
- Thirty-Mile Point to Sodus Bay NY
- Sodus Bay to Mexico Bay NY
- Mexico Bay NY to the St. Lawrence River
- Lake Ontario, Niagara River to Thirty-Mile Point NY beyond 5 nm offshore
- Lake Ontario, Thirty-Mile Point to Sodus Bay NY beyond 5 nm offshore
- Lake Ontario, Sodus Bay to Mexico Bay NY beyond 5 nm offshore
- Lake Ontario, Mexico Bay NY to the St. Lawrence River beyond 5 nm offshore
St. Lawrence River
Canadian portions of the Great Lakes
Marine & Boating
Enter a coastal zip code for marine weather.
Coastal Water Temperatures
|Alexandria Bay, NY||42.1 °F|
Open Sea Buoy Information
|Place||ID||Sea Temp||Wave Height|
|Prince Edward Pt||45135||31 °F||0.66 ft|
|Lake Ontario Buoy 20NM North Northeast of Rochester, NY||45012||0.66 ft|
|Click the Station ID for daily observations and history.|
C-MAN Station Information
|Place||ID||Water Temp||Wave Height|
|Alexandria Bay, NY|
|Superior Shoals, NY|
|Thousand I Brdg NY|
|Galloo Island, NY|
NOT FOR NAVIGATION. DO NOT RELY ON THIS DATA FOR DECISIONS THAT CAN RESULT IN HARM TO ANYONE OR ANYTHING.