Lahaina. Her beautiful historic district has been named a National Historic Landmark because of the large number of restored buildings belonging to the nineteenth century. Maui storm surge is a phenomenon caused by an extreme low pressure and high winds around the eye of the hurricane or typhoon that cause the water to "grow" to higher levels than expected. The Immense waves impacts the ground causing significant damage in coastal areas. This swelling can cause severe flooding in areas close to the coast, especially when already in place usually had high tide. The stronger the storm and lower coast lands, the worse the damage. This surge is the most dangerous kind of hurricane. A deep tropical cyclone is usually differentiated in terms of wind speed, but coastal flooding causing more deaths than winds. The cans are separated from their moorings, utility poles and other flying debris with the hurricane and end up destroying buildings that were not destroyed by the force of hurricane winds itself. Even without the force of the spoils, the water itself has the power to destroy. Two hurricanes, (Iwa and Iniki) left devastation and death in its path by the state. Hurricane Iwa struck the islands of Niihau, Kauai and Oahu on 23 November 1982. It was a Category 1 hurricane on the scale Saffir-Simpson hurricane. Hurricane Iwa was the largest suffered since Hawaii became a state in 1959. Hurricane Iniki was the most powerful and destructive hurricane that hit Hawaii in its history. The eye of the hurricane devastated the island of Kauai on September 11, 1992, and was a Category 4 hurricane, causing six deaths and about $ 1.8 billion in damages.