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Severe · Special Marine WarningThis alert has expired. It is kept for reference.

Special Marine Warning issued September 2 at 7:59AM EDT until September 2

Affecting Niagara River to Hamlin Beach NY; Hamlin Beach to Sodus Bay NY; Sodus Bay to Mexico Bay NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border

In effect until: Sep 2, 2026, 1:30 PM

Niagara River to Hamlin Beach NY; Hamlin Beach to Sodus Bay NY; Sodus Bay to Mexico Bay NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border

Likely impact; effects through 1:30 PM.

Move to safe harbor immediately as gusty winds and high waves are expected.

Read the original bulletin (official text)
SMWBUF

The National Weather Service in Buffalo has issued a

* Special Marine Warning for...
Lake Ontario from Hamlin Beach to Fair Haven and Oswego...

* Until 930 AM EDT.

* At 758 AM EDT, severe thunderstorms were located along a line
extending from 21 nm north of Hamlin Beach to 9 nm southeast of
Sunset Beach, moving east at 40 knots.

HAZARD...Wind gusts to nearly 50 knots and large hail.

SOURCE...Radar.

IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves. Large hail could result in
structural damage.

* Locations impacted include...
Oswego, Ontario Beach, Ontario On The Lake, Hamlin Beach, Sunset
Beach, Sodus Bay, Irondequoit Bay, and Fair Haven.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™