some details from NY Times:
Windspeeds from the storm had diminished somewhat at it moved north, capping off at 75 miles an hour, the National Hurricane Center reported, slightly above the minimum needed to considered a Category I hurricane. A wind gust of 58 m.p.h. had been reported at JFK Airport. Still, forecasters said the relentless rain from the slow-moving storm made it very dangerous.
“Even though they are saying that the storm is quote-on-quote weakening, hurricane winds are hurricane winds,” John Searing, the deputy commissioner of the Suffolk County Department of Fire, Rescue and Emergency Services, said before daybreak Sunday as he prepared to deal with the damage. “Whether they say its 80 miles or 75 miles an hour, what’s the physical difference in that?”
City officials warned that a big problem could be flooding at high tide, at about 8 a.m. Sunday — before the storm has moved on and the wind has slacked off. The storm is expected to pass through by Sunday afternoon, moving into Southern New England.
“That is when you’ll see the water come over the side,” Mr. Bloomberg cautioned Saturday afternoon.
http://www.nytimes.com/2011/08/28/nyregion/new-yorkers-warned-of-possible-electrical-shutdown.html?_r=1