Henry Margusity

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Low NAO Could Lead to a Coastal Storm

September 24, 2013; 10:14 AM


I am tending to lean toward the ECMWF model for the potential coastal storm later part of the weekend. The NAO is going down to -2 which typically implies that a coastal storm should develop. It's a matter of how much the storm can back in and get picked up by the western trough. Even the GFS to some extent is showing the storm developing, but way off shore.

If the storm does develop and backs in, the impacts would be gale-force winds along the coast, heavy rains and beach erosion. By NO MEANS would this be a storm on the magnitude of a Sandy so let's just dismiss that before the hype starts.

The next question becomes, would the NHC name the storm. My guess is yes but as a subtropical storm.

It's a very interesting event that is unfolding.

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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.