Hurricane preparedness for New Orleans January 25, 2005, the Louisiana Sea Grant forum discussed additional results of several simulations of strong hurricanes hitting New Orleans. Hurricane Cindy hit Louisiana at just barely hurricane strength on July 5, 2005. Many New Orleanians paid it little attention in advance, some having gotten blasé about threats of hurricanes which for decades had missed the city. However, Cindy's winds gusted to in the city, knocking branches off trees and causing New Orleans' largest blackout since Hurricane Betsy in 1965. The experience encouraged many to evacuate when the much more powerful Hurricane Katrina was heading towards the city less than
1915 New Orleans hurricane seas produced by the hurricane along the Louisiana coast arrived shortly before the storm made landfall. Evacuees departing the coast as late as September 28 reported no abnormal tides along the shore. However, sea levels began to rise at abnormally rapid rates on the morning of September 29 as the hurricane neared. By the afternoon hours, low-lying lands south of New Orleans and east towards Bay St. Louis, Mississippi, as well as areas adjacent to Lake Pontchartrain, were inundated by the quickly rising storm surge. Levee overtopping along Lake Pontchartrain resulted in the flooding of much of western New Orleans.