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This special marine warning is no longer in effect. It expired . It is kept here for reference only — do not rely on it for current conditions. See alerts in effect now

Special Marine Warning

Expired

Sodus Bay to Mexico Bay NY; Mexico Bay NY to the St. Lawrence River; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border; Mexico Bay NY to the St. Lawrence River beyond 5NM off shoreline to US-Canadian border; St. Lawrence River above Ogdensburg NY

Status Ended Started 35 minutes ago
Ends expired
Issued
Severity Severe
Urgency Immediate
Certainty Likely

Details

For the following areas...
Lake Ontario from Mexico Bay to the Saint Lawrence River The Saint Lawrence River from Cape Vincent to Alexandria Bay...
At 831 PM EDT, a severe thunderstorm capable of producing waterspouts was located over Tibbets Point, or 33 nm north of Mexico Bay, moving east at 25 knots.
HAZARD...Waterspouts, wind gusts 34 knots or greater, and large hail.
SOURCE...Radar indicated.
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... Pillar Point, Alexandria Bay, Mexico Bay, Southwick Beach, Henderson Harbor, Wellesley Island, Westcott Beach, Chaumont Bay, Selkirk Beach, Stony Point, Clayton, Sandy Island Beach, Black River Bay, Tibbets Point, Sackets Harbor, North Pond, St. Lawrence River, and Cape Vincent.
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