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

Special Marine Warning issued September 2 at 6:21PM 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 3, 2026, 12:15 AM

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 12:15 AM.

Stay indoors, monitor local alerts, and follow instructions from local officials.

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 Mexico Bay ...

* Until 815 PM EDT.

* At 620 PM EDT, a severe thunderstorm capable of producing
waterspouts was located 11 nm north of Hamlin Beach, moving east at
40 knots.

HAZARD...Waterspouts, wind gusts to 40 knots, and large hail.

SOURCE...Radar.

IMPACT...Waterspouts can easily overturn boats and create locally
hazardous seas. 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, Sodus
Bay, Irondequoit Bay, and Fair Haven.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™