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Weather alert: Tornado Watch in effect for NYC, all of New Jersey, upstate New York

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UPDATE: TORNADO WATCH CANCELED. CLICK HERE TO WATCH THE PIX11 NEWS AT 5 FOR MR. G’S FORECAST

The National Weather Service has issued a Tornado Watch until 5:00 p.m. for all of New York City, all of New Jersey, and much of the suburbs north of New York City.

The watch extends to large portions of upstate New York.

A Tornado Watch means that the ingredients are present for the formation of tornadoes.

tornado

If in fact we go to a Tornado “Warning”, that means that tornadic activity is occurring or
imminent.

storm

A potent cold front is moving across Pennsylvania and will arrive in the tri-state area early this
afternoon.

The unseasonably warm air which has dominated our weather for the past two weeks is mixing with cooler,
drier air from Canada.

This contrast in air masses has caused a line of strong to severe thunderstorms to form.

Expect heavy rain, with flooding possible  especially in urban and poor drainage areas.

Dangerous lightning and gusty winds are also likely in many portions of the tri-state area.

Tonight, skies will clear and cooler Canadian air will settle in, with a pleasant fall day on tap for Tuesday.