1. HURRICANE IRMA SATURDAY, SEPTEMBER 9, 2017 Before, During, and After Making Landfall on West Coast of Florida
lecture by Walter Hays Uploading date: September 12, 2017
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Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA

2. HAZARDS OF A SEVERE WINDSTORM (AKA POTENTIAL DISASTER AGENTS)
WIND FIELD [CAT 1 (55 mph) TO CAT 5+ (155 mph or greater)]
DEBRIS
STORM SURGE/FLOODS
HEAVY PRECIPITATION/FLOODS
LANDSLIDES (MUDFLOWS)
COSTAL EROSION

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

4. GOAL: WINDSTORM DISASTER RESILIENCE
WINDSTORM HAZARDS
PEOPLE & BLDGS.
VULNERABILITY
LOCATION
WINDSTORM RISK
ACCEPTABLE RISK
UNACCEPTABLE RISK
RISK
GOAL: WINDSTORM DISASTER RESILIENCE
COMMUNITIES
DATA BASES AND INFORMATION
PREPAREDNESS
PROTECTION
EARLY WARNING
EMERGENCY RESPONSE
RECOVERY and
RECONSTRUCTION
POLICY OPTIONS
HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS

5. HIGH POTENTIAL LOSS EXPOSURES IN A SEVERE WINDSTORM
Entire communities;
People, property, infra-structure, business enterprise, government centers, crops, wildlife, and natural resources.

6. IRMA: FORECAST ON AUGUST 30

7. CAT 2 IRMA: SEPT. 2: DESTI-NATION STILL UNCERTAIN

8. Irma Left at Least 27 Deaths and Vast Destruction in the Island Nations of the Caribbean

9. WILL HURRICANE IRMA CAUSE ANOTHER DISASTER IN THE USA. SEPT
WILL HURRICANE IRMA CAUSE ANOTHER DISASTER IN THE USA? SEPT. 9: YES, WORSE--- A CATASTROPHE
5.6 MILLION EVACUATING IN CARS—A RECORD—WITH GAS SHORTAGES, NO HOTEL ROOMS AND CONGESTED HIGHWAYS

10. CAT 4 IRMA: SEPT. 9: DESTINATION FLORIDA

11. HURRICANE IRMA’S LANDFALLS IN FLORIDA 1) Florida Keys—Sept 9 2) Florida—Sept 10

12. SEPT 9-10: 3 M (10 FT) STORM SURGES ARE EXPECTED ON BOTH OF FLORIDA’s COASTS
DEVASTATION ALREADY THROUGHOUT THE CARIBBEAN WITH CAT 4 HURRICANE JOSE STILL COMING ON SIMILAR TRACK

13. HIGH WINDS, STORM SURGE, FLOODING—ALL KILLERS AND LOSS MAKERS--- ARE EXPECTED in the Keys and Both Coasts of Florida

14. SEPT 10: WIND, STORM SURGE AND RAINFALL

15. SEPT 10: STORM SURGE AND RAINFALL

16. HISTORIC JACKSONVILLE FLOODING

17. ST JOHNS RIVER NEAR JACKSONVILLE

18. SEPT 10-11: PROJECTED PATH

19. GOVERNOR SCOTT TELLS THE 6 MILLION WHO EVACUATED---”DON’T THINK ABOUT RETURNING, YET; IT’S TOO DANGEROUS.”

20. 65 PERCENT OF POWER OUT THROUGHOUT FLORIDA---MAY TAKE MONTHS TO RECOVER

21. SCHOOLS LIKELY TO BE CLOSED FOR WEEKS TO MONTHS

22. ECONOMIC LOSSES IN CARIBBEAN AND FLORIDA
ECONOMIC LOSSES FROM WIND, STORM SURGE, AND FLOODING AND LOSS OF TOURISM ARE EXPECTED TO REACH TENS OF BILLIONS IN THE ISLAND NATIONS AND FLORIDA.

23. PRELIMINARY THINKING: IRMA LIKELY TO BE ONE OF THE TOP 5 FIVE MOST COSTLY DISASTRS IN USA HISTORY.”