Originally Posted by
USAF Pilot 07
When dealing with storms we (weather guys) divide them into quadrants. In hurricanes, it's common to split the storm into 4 equal sized quadrants.
The right front quadrant of a hurricane (i.e. north and east of the center of circulation) is generally the worst quadrant of a storm. This is where a lot of the intense precipitation associated with the storm is located and where stronger winds and conditions favorable for tornadic development is present. Also, more "important" in this case, is that due to the anti-cyclonic flow of a low pressure system (counterclockwise in the northern hemisphere), the storm surge experienced by those in the right front quadrant generally tends to the be worse than in another quadrants.
This is why it will be very bad for Long Island for this storm to track west of Long Island, but East of NYC. Even if this becomes somewhat of an inland runner, the low pressure of the system, the associated onshore winds of the system and the fact that this could hit during a full moon at high tide could be devastating for coastal sections on Long Island.
The only way this storms becomes a lower threat is if it starts tracking very far inland, somehow takes a sharp turn out to sea or completely falls apart due to strong upper level shearing - scenarios that appear very unlikely.