Easterly Wave low pressure trough moving east to west
Tropical Storm Hurricane Tropical Disturbance
Regional Hurricane Names and Typical Tracks
Tropical Cyclones and Sea-Surface Temperatures Tropical Cyclone Fixes 80°F Water Temperature June/July August September
Atlantic Hurricane Frequency by Date
Hurricane Georges
Atlantic Basin Hurricane Satellite Loops 2005 season https: //www. youtube. com/watch? v=v. B_K e. Km. MOYA (start at 3: 30) 2010 season http: //www. youtube. com/watch? v=ual 22 z n. KM 10&feature=related (Igor, 2: 40)
Regional Hurricane Names and Typical Tracks H H
GLOBAL TROPICAL CYCLONES 1985– 2005
COASTAL HURRICANE VULNERABILITY > 50 years between landfall < 20 years # years between hurricanes # years between major hurricanes
Damage • Wind • Tornadoes • Flooding Storm Surge
Hurricane Storm Surge
# U. S. Landfalling Hurricanes, 1901– 2013 1935 Florida Keys 1969 Camille (Biloxi) 1992 Andrew (Miami)
% Rainfall (May-Nov) from Tropical Cyclones Knight and Davis, 2007
ANNUAL NUMBER OF NORTH ATLANTIC TROPICAL CYCLONES When do the storm counts become reliable?
Global Hurricanes: 1971– 2017
Hurricane Development Factors • High Water Temperatures • Unstable lower atmosphere Cool up • Moisture convergence at surface Warm L • Lack of vertical wind shear up Wind
Deadliest U. S. Hurricanes, 1880– 2010 (Blake et al. , 2011)
Costliest U. S. Hurricanes 1900– 2017 (Blake et al. , 2011 with updates; damages not inflation-adjusted)
Costliest U. S. Hurricanes 1900– 2017 (Blake et al. , 2011 with updates; adjusted to 2017 dollars)
U. S. Total Losses per Year from Atlantic Tropical Cyclones (1900– 2005) An Upward Trend? (Source: Pielke Jr. , R. , 2006, Oceanography, 19, 138 -147)
Normalized U. S. Losses per Year from Atlantic Tropical Cyclones (1900– 2005) No change when population demographics are properly considered (Source: Pielke Jr. , R. , 2006, Oceanography, 19, 138 -147)