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Published byRachel Morris Modified over 9 years ago
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Scatter plot of minimum pressure and maximum azimuthal wind for Atlantic and Eastern Pacific tropical cyclones (1989-2004 + Hurricane Isaac 2012 [red]). Figure adapted from: Knaff & Zehr, 2007, Weather Forecasting, 22, 71-88.
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Global storm count: ~90 per year
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Locations of tropical cyclone genesis in January
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Locations of tropical cyclone genesis in February
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Locations of tropical cyclone genesis in March
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Locations of tropical cyclone genesis in April
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Locations of tropical cyclone genesis in May
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Locations of tropical cyclone genesis in June
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Locations of tropical cyclone genesis in July
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Locations of tropical cyclone genesis in August
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Locations of tropical cyclone genesis in September
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Locations of tropical cyclone genesis in October
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Locations of tropical cyclone genesis in November
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Locations of tropical cyclone genesis in December
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Locations of tropical cyclone genesis
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Seasonal cycle of tropical cyclogenesis Northern Hemisphere solid Southern Hemisphere dashed
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Hawkins, H. F., and D. T. Rubsam, 1968: “Hurricane Hilda, 1964. Part II: Structure and budgets of the hurricane on October 1, 1964. Monthly Weather Review, 96, 617-636.
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Number of storms (1970-2011) by basin
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Number of storms (1970-2011) in Northern Hemisphere (red) And Atlantic and North Pacific only (blue)
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Atlantic Main Development Region SST (ASO mean) and power dissipation (whole season, whole basin) 1-3-4-3-1 filter applied to smooth interannual variability
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