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Marine Thunderstorm Wind · Lake Ontario

Marine Thunderstorm Wind September 7, 2021 · Niagara River To Hamlin Beach Ny, Lake Ontario

46 mph

Measured gust (40 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

The wider storm

Cold advection behind Monday's thunderstorm line and cold frontal passage allowed for sufficient instability to develop over Lake Ontario for some early morning waterspouts. As the day ensued, shear increased, so while the waterspout threat diminished, the threat for gusty winds in showers increased, resulting in isolated convective wind gusts along the shoreline.

Began near Olcott (43.3400, -78.7100).

Source: NOAA Storm Events Database, event 986821. Narratives are written by the National Weather Service forecast office that issued the report.

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