Question: What is the name of the event that closed down John F. Kennedy High School and became one of the costliest and fifth deadliest natural events of its kind?

Context paragraphs:
John F. Kennedy High School (Mt. Angel, Oregon): John F. Kennedy High School is a public school located in Mt. Angel, Oregon, United States, as part of the Mt. Angel School District.  The school was originally Mt. Angel Preparatory School run by the Benedictine monks of Mount Angel Abbey, and was founded in 1887.  The Benedicitnes ran the school until 1964, when they turned its administration over to St. Mary's Catholic Church, located in Mt. Angel.  The parish ran the school for five years until closing it in 1969.  It was reopened one year later as John F. Kennedy High School, and remains so today.

Nansemond River High School: Nansemond River High School is a public secondary school in Suffolk, Virginia, United States.  It opened in September 1990 and originally consisted of students from three of the four former high schools of Suffolk, John F. Kennedy High School, John Yeates High School, and Suffolk High School.  Nansemond River opened its doors to approximately 1700 students.  The student population swelled to nearly 2000 students in 2003, and in 2004, a new high school, King's Fork, was formed.  As a result, Nansemond River's population dropped in the 2004-2005 school year to about 1100 students.  However, the following year, the school opened its doors to about 1200 students once again.

John F. Kennedy High School (Montreal): John F. Kennedy High School (French: École secondaire John F. Kennedy ) is a public high school located in Montreal, Quebec, Canada.  The school is operated by the English Montreal School Board.  The current principal is Joseph Vitantinio; the Vice-principal is Sabrina Petrocco.

John F. Kennedy High School (New Orleans): John F. Kennedy High School was a high school located in the Lakefront area of New Orleans, Louisiana, in the United States.  The school closed down subsequent to Hurricane Katrina in the fall of 2005.  The school's last graduating class was the class of 2005.

John F. Kennedy High School (New York City): John F. Kennedy High School is a former four-year comprehensive New York City public high school, located at 99 Terrace View Avenue along the border of the Spuyten Duyvil section of the Bronx and the Marble Hill neighborhood of Manhattan, near the Kingsbridge section of the Bronx.  The building currently operates as John F. Kennedy Educational Campus, housing four small public high schools and two charter high schools.  The campus serves grades 9–12 and is operated by the New York City Department of Education.

Bloomington Kennedy High School: Kennedy High School (also known as John F. Kennedy High School) is one of two public high schools located in Bloomington, Minnesota, USA.  Named after former president John F. Kennedy, it was opened in 1965 due to the rapid growth of Bloomington at the time.  The school had been a member of the Lake Conference since the school opened.  The school left the Lake Conference after the 2009-10 school year to become part of the new South Suburban Conference.  In 2014, Kennedy joined the new Metro West Conference.

Hurricane Katrina: Hurricane Katrina was an extremely destructive and deadly tropical cyclone that was the costliest natural disaster and one of the five deadliest hurricanes in the history of the United States.  It was the eleventh named storm and the fifth hurricane of the 2005 Atlantic hurricane season.

Downcounty Consortium: The Downcounty Consortium (DCC) is a group of five high schools that rising middle-schoolers in a select part of Montgomery County, Maryland choose from to attend for high school education.  These high schools are Albert Einstein High School, John F. Kennedy High School, Montgomery Blair High School, Wheaton High School, and Northwood High School.

John F. Kennedy High School: John F. Kennedy High School or Kennedy High School is the name of many secondary schools, including:

Kennedy High School (Chicago): John F. Kennedy High School is a public four-year high school located in the Garfield Ridge neighborhood on the southwest side of Chicago, Illinois, United States.  Operated by Chicago Public Schools, Kennedy opened in 1963.  The school is named in honor of the 35th President of the United States, John F. Kennedy (1917–1963).  Kennedy is an Advancement Via Individual Determination (AVID) school.  Since 2000, Kennedy has been a part of the International Baccalaureate Program.

Supporting paragraphs: John F. Kennedy High School (New Orleans) Hurricane Katrina
Answer: Hurricane Katrina