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Active official alertUpdated

Special Marine Warning for 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 Wilson to Hamlin Beach. At 712 AM EDT, a severe thunderstorm capable of producing waterspouts was located 20 nm northwest of Sunset Beach, or 26 nm northeast of Niagara River, moving southeast at 35 knots. HAZARD...Waterspouts, wind gusts in excess of 50 knots, and small...

What the bulletin says to do

Move to safe harbor until hazardous weather passes. 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 Wilson to Hamlin Beach. At 712 AM EDT, a severe thunderstorm capable of producing waterspouts was located 20 nm northwest of Sunset Beach, or 26 nm northeast of Niagara River, moving southeast at 35 knots. HAZARD...Waterspouts, wind gusts in excess of 50 knots, and small hail. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Sunset Beach.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

3 captured
  1. Update

    Special Marine Warning issued September 2 at 7:13AM EDT until September 2 at 8:00AM EDT by NWS Buffalo NY

    Official revision
  2. Update

    Special Marine Warning issued September 2 at 7:07AM EDT until September 2 at 8:00AM EDT by NWS Buffalo NY

    Official revision
  3. Alert

    Special Marine Warning issued September 2 at 6:26AM EDT until September 2 at 8:00AM 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.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections