TYPHOON 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. The typhoon toppled trees, flooded streets and cut power to more than 60,000 homes. 35 people were reported injured in Okinawa and Kyushu, where 150,000 people were evacuated. Fifteen years ago, more than 10,000 people were killed when a cyclone hit roughly the same area, which lacked significant evacuation capability. CONCLUSION: A MAJOR IMPROVEMENT IN EVACUATION Presentation courtesy of Dr. Walter Hays, Global Alliance for Disaster Reduction

1. TYPHOON VONGFONG HITS JAPAN
AND CYCLONE HUDHUD HITS INDIA
October 12, 2014

2. SEVERE WINDSTORMS
TROPICAL STORMS,
HURRICANES, TYPHOONS,
AND CYCLONES

3. 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.

5. 1325 HURRICANES: DYNAMIC
LABORATORIES FOR LEARNING
• EACH HURRICANE
TEACHES
IMPORTANT
TECHNICAL AND
POLITICAL
LESSONS ABOUT
DISASTER
RESILIENCE.

6. SEVERE WINDSTORMS:
TYPHOONS
• The exact same phenomenon in
the Western Pacific Ocean
region is called a TYPHOON.

7. Physics Of A Typhoon

8. SEVERE WINDSTORMS:
CYCLONES
• The exact same phenomenon in the
Indian Ocean region is called a
CYCLONE.

9. ELEMENTS OF RISK
HAZARDS
EXPOSURE
RISK
VULNERABILITY LOCATION

10. HAZARDS OF A SEVERE
WINDSTORM

11. 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)

12. “SEVERE WINDSTORM
LABORATORIES”
EACH STORM PROVIDES
VALUABLE LESSONS ON
DISASTER RESILIENCE

13. WIND PENETRATING
BUILDING ENVELOPE
SEVERE
WINDSTORMS
UPLIFT OF ROOF SYSTEM
FLYING DEBRIS
STORM SURGE
IRREGULARITIES IN
ELEVATION AND PLAN
SITING PROBLEMS
FLOODING AND LANDSLIDES
CAUSES
OF
DAMAGE
“DISASTER
LABORATORIES”

14. RISK ASSESSMENT
•HAZARD MAPS
•INVENTORY
•VULNERABILITY
•LOCATION
DATA BASES COMMUNITY
AND INFORMATION
HAZARDS:
GROUND SHAKING
GROUND FAILURE
SURFACE FAULTING
TECTONIC DEFORMATION
TSUNAMI RUN UP
AFTERSHOCKS
RISK
ACCEPTABLE RISK
UNACCEPTABLE RISK
SEVERE WINDSTORM
DISASTER RESILIENCE
POLICY OPTIONS
•PREPAREDNESS
•PROTECTION
•EARLY WARNING
•EMERGENCY RESPONSE
•RECOVERY and
RECONSTRUCTION

15. TYPHOON VONGFONG: 2014’S
6TH SUPER TYPHOON

16. 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.

17. 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

18. 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.

19. CYCLONE HUDHUD
ARRIVED: OCT. 12

20. 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.

21. 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.

22. CONCLUSION: A MAJOR
IMPROVEMENT IN EVACUATION
• India’s Evacuation operations have
improved significantly during the past 15
years, with a corresponding reduction in
mortality.

23. 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