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TYPHOON VONGFONG HITS JAPAN AND CYCLONE HUDHUD HITS INDIA October 12, 2014
Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA lecture by Walter Hays Uploading date: October 13, 2014 More lectures at Disasters Supercourse - PPT original -
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TROPICAL STORMS, HURRICANES, TYPHOONS, AND CYCLONES
SEVERE WINDSTORMS TROPICAL STORMS, HURRICANES, TYPHOONS, AND CYCLONES
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SEVERE WINDSTORMS: HURRICANES
In the Atlantic, Caribbean, Gulf of Mexico, and Eastern Pacific areas cyclonic tropical storms with well-formed central “eyes” and with wind speeds above 74 mph are referred to as HURRICANES.
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1325 HURRICANES: DYNAMIC LABORATORIES FOR LEARNING
EACH HURRICANE TEACHES IMPORTANT TECHNICAL AND POLITICAL LESSONS ABOUT DISASTER RESILIENCE.
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SEVERE WINDSTORMS: TYPHOONS
The exact same phenomenon in the Western Pacific Ocean region is called a TYPHOON.
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Physics Of A Typhoon
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SEVERE WINDSTORMS: CYCLONES
The exact same phenomenon in the Indian Ocean region is called a CYCLONE.
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ELEMENTS OF RISK HAZARDS EXPOSURE RISK VULNERABILITY LOCATION
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HAZARDS OF A SEVERE WINDSTORM
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HAZARDS OF A SEVERE WINDSTORM (AKA POTENTIAL DISASTER AGENTS)
WIND FIELD (COUNTER CLOCKWISE OR CLOCKWISE DIRECTION; CAT 1 (55 mph) TO CAT 5 (155 mph or greater) STORM SURGE HEAVY PRECIPITATION LANDSLIDES (MUDFLOWS) COSTAL EROSION TORNADOES (SOMETIMES)
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“SEVERE WINDSTORM LABORATORIES”
EACH STORM PROVIDES VALUABLE LESSONS ON DISASTER RESILIENCE
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WIND PENETRATING BUILDING ENVELOPE
CAUSES OF DAMAGE WIND PENETRATING BUILDING ENVELOPE UPLIFT OF ROOF SYSTEM FLYING DEBRIS SEVERE WINDSTORMS STORM SURGE IRREGULARITIES IN ELEVATION AND PLAN “DISASTER LABORATORIES” SITING PROBLEMS FLOODING AND LANDSLIDES
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SEVERE WINDSTORM DISASTER RESILIENCE
HAZARD MAPS INVENTORY VULNERABILITY LOCATION RISK ASSESSMENT ACCEPTABLE RISK UNACCEPTABLE RISK RISK SEVERE WINDSTORM DISASTER RESILIENCE DATA BASES AND INFORMATION COMMUNITY PREPAREDNESS PROTECTION EARLY WARNING EMERGENCY RESPONSE RECOVERY and RECONSTRUCTION POLICY OPTIONS HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
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TYPHOON VONGFONG: 2014’S 6TH SUPER TYPHOON
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VONGFONG: A HUGE STORM On Oct 7, in just 24 hours, Vongfong intensified from a CAT 2 storm to one with, 155 mph wind speeds, and an estimated central pressure of 908 millibars.
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TYPHOON VONGFONG REACHED OKINAWA
Vongfong, which reached Okinawa on Sunday afternoon, October 12th, is expected to reach Tokyo on Tuesday, but as a much weaker storm
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TYPHOON VONGFONG: INITIAL REPORTS
35 people were reported injured in Okinawa and Kyushu, where 150,000 people were evacuated. The typhoon toppled trees, flooded streets and cut power to more than 60,000 homes.
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CYCLONE HUDHUD ARRIVED: OCT. 12
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HURRICANE HUDHUD: OCTOBER 12
Hudhud hit the southern port city of Visakhapatnam, location of a major naval base, close to noon. 400,000 people were evacuated earlier from the States of Odisha and Andhra Pradesh.
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HURRICANE HUDHUD: INITIAL REPORTS
The States of Odisha and Andhra Pradesh experienced high winds and heavy rainfall. Six killed. Power was disrupted and commun-ications collapsed.
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CONCLUSION: A MAJOR IMPROVEMENT IN EVACUATION
India’s Evacuation operations have improved significantly during the past 15 years, with a corresponding reduction in mortality.
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1999, 2013, AND 2014 Fifteen years ago, more than 10,000 people were killed when a cyclone hit roughly the same area, which lacked significant evacuation capability. In October, 2013, Cyclone Phailin resulted in 800,000 being evacuated with few deaths. October 12, 2014; 400,000 evacuated with 6 deaths
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