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Hurricanes. Powerful cyclones that form over the ocean in tropical conditions and has an organized circulation. Very Low Pressure area Normal Pressure.

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Presentation on theme: "Hurricanes. Powerful cyclones that form over the ocean in tropical conditions and has an organized circulation. Very Low Pressure area Normal Pressure."— Presentation transcript:

1 Hurricanes

2 Powerful cyclones that form over the ocean in tropical conditions and has an organized circulation. Very Low Pressure area Normal Pressure - 1013 mb or 14.7 lbs per square inch Generates high winds. 74 mph or greater. Counter Clockwise Rotation – - Northeast quadrant most severe

3 Quadrants

4 Categories Five Categories CategoryWindsStorm Surge 174 – 95 mph4-5 ft 296-110 mph 6-8 ft 3111-130 mph 9-12 ft 4131-155 mph 13-18 ft 5+ 155 mph + 18 ft

5 Storm Surge Storm surge is a rise in normal water level. Caused by onshore winds and decreased atmospheric pressure.

6 Hurricane Names 200620072008200920102011 Alberto Beryl Chris Debby Ernesto Florence Gordon Helene Isaac Joyce Kirk Leslie Michael Nadine Oscar Patty Rafael Sandy Tony Valerie William Andrea Barry Chantal Dean Erin Felix Gabrielle Humberto Ingrid Jerry Karen Lorenzo Melissa Noel Olga Pablo Rebekah Sebastien Tanya Van Wendy Arthur Bertha Cristobal Dolly Edouard Fay Gustav Hanna Ike Josephine Kyle Laura Marco Nana Omar Paloma Rene Sally Teddy Vicky Wilfred Ana Bill Claudette Danny Erika Fred Grace Henri Ida Joaquin Kate Larry Mindy Nicholas Odette Peter Rose Sam Teresa Victor Wanda Alex Bonnie Colin Danielle Earl Fiona Gaston Hermine Igor Julia Karl Lisa Matthew Nicole Otto Paula Richard Shary Tomas Virginie Walter Arlene Bret Cindy Don Emily Franklin Gert Harvey Irene Jose Katia Lee Maria Nate Ophelia Philippe Rina Sean Tammy Vince Whitney

7 Retired Names 1954 – Carol 1954 – Hazel 1955 – Connie 1955 – Diane 1955 – Ione 1955 – Janet 1957 – Audrey 1960 – Donna 1961 – Carla 1961 – Hattie 1963 – Flora 1964 – Cleo 1964 – Dora 1964 – Hilda 1965 – Betsy 1966 – Inez 1967 – Beulah 1968 – Edna 1969 - Camille 1970 - Celia 1972 - Agnes 1974 - Carmen 1974 - Fifi 1975 - Eloise 1977 - Anita 1979 - David 1979 - Frederic 1980 - Allen 1983 - Alicia 1985 - Elena 1985 - Gloria 1988 - Gilbert 1988 - Joan 1989 – Hugo 2002 - Isidore 2002 - Lili 2003 - Fabian 2003 - Isabel 2003 - Juan 2004 - Charley 2004 - Frances 2004 - Ivan 2004 - Jeanne 2005 - Dennis 2005 - Katrina 2005 - Rita 2005 - Stan 2005 - Wilma 2007 - Dean 2007 - Felix 2007 - Noel 1990 - Diana 1990 - Klaus 1991 - Bob 1992 - Andrew 1995 - Luis 1995 - Marilyn 1995 - Opal 1995 - Roxanne 1996 - Cesar 1996 - Fran 1996 - Hortense 1998 - Georges 1998 - Mitch 1999 - Floyd 1999 - Lenny 2000 - Keith 2001 - Allison 2001 - Iris 2001 - Michelle

8 Katrina Formed - August 23, 2005August 232005 Dissipated - August 31, 2005August 312005 Highest winds - 175 mph (280 km/h)mphkm/h Lowest pressure - 902 mbar (third lowest in history)mbar Storm Surge – 11.5 ft. Damages - $81.2 billion (2005 USD) (costliest Atlantic hurricane in history)USDAtlantic hurricane Fatalities ≥1,836 total

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