“When perigean tides coincide with spring tides, extreme tides can be expected.”

“For Hurricane Bill, waves were weaker than Juan hitting the shore, it did not occur near a perigean spring tide and the surge was less.”

“There was also a strong surge, but the total water level was not as high due to a perigean neap tide, which averaged 50 cm lower than the perigean springs of the previous weekend on the Atlantic Coast.”