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Special Marine Warning for Lower Niagara River; Niagara River to Hamlin Beach NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border

Official alert fields

What you need to know

Effective
Ends or expires
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

For the following areas... Lake Ontario from Niagara River to Hamlin Beach... The Lower Niagara River... At 537 PM EDT, a severe thunderstorm capable of producing waterspouts was located 13 nm north of Fort Niagara, or 14 nm north of Niagara River, moving southeast at 35 knots. HAZARD...Waterspouts, wind gusts to...

What the bulletin says to do

A Tornado Watch remains in effect until 1100 PM EDT for western New York...and the adjacent waters of Lake Ontario. Boaters should seek safe harbor immediately until this storm passes. Wind gusts to 40 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.

Full official description

Bulletin details

For the following areas... Lake Ontario from Niagara River to Hamlin Beach... The Lower Niagara River... At 537 PM EDT, a severe thunderstorm capable of producing waterspouts was located 13 nm north of Fort Niagara, or 14 nm north of Niagara River, moving southeast at 35 knots. HAZARD...Waterspouts, wind gusts to 40 knots, 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... Thirty Mile Point, Youngstown, Lewiston, Olcott, Wilson, Sunset Beach, and Fort Niagara.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

2 captured
  1. Update

    Special Marine Warning issued September 2 at 5:38PM EDT until September 2 at 7:15PM EDT by NWS Buffalo NY

    Official revision
  2. Alert

    Special Marine Warning issued September 2 at 5:18PM EDT until September 2 at 7:15PM EDT by NWS Buffalo NY

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Buffalo NY. This page reorganizes official fields and does not add a forecast or expand the affected area.

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Actual
Message type
Update
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Methodology and corrections