Hurricane definition, Hurricane occurance, Hurricane destructions, Katriina Hurricane

1. The History, Structure, Development, and
Destruction

2.  Violent cyclonic
storm that
develops in the
tropical region
 Wind speeds are >
74 mph

3. In which direction does a hurricane rotate?
Counterclockwise
Is the barometric pressure inside the hurricane
high or low?
Low

4. June1st through November 31st

5.  Provides weather information, such as
data from satellites
 Responsible for issuing watches and
warnings to the media and general
public

6.  What is the difference between a Hurricane
Watch and a Hurricane Warning?
◦ Watch – Tropical storm poses a threat to
coastal areas with 36 hours
◦ Warning - Tropical storm conditions are
expected in a coastal area within 24 hours

7.  Warm ocean temperatures
(>80˚ F) up to 60m deep
 Little to no wind shear
 Low pressure system at
least 5˚ North or South of
Equator
 Rotation caused by winds

8. Heat Energy evaporating from the ocean surface

11.  Tropical Disturbance
Group of thunderstorms in the tropics that are
present for at least 24 hours
 Tropical Wave
lack of circulation, winds <25 mph and every
direction
 Tropical Depression
closed circulation but disorganized, winds at
least 25 mph

12.  Tropical Storm
Shower and thunderstorm moves over closed
circulation, winds greater than 39 mph
 Hurricane
Eye is developed, winds > 74 mph

14. Wind Speed
Barometric Pressure

15. Saffir-Simpson Scale
Category Max Wind Speed Min. Surface Pressure Storm Surge m (ft)
(mph) (mb)
1 74-96 > 980 1-1.7 (3-5)
2 97-111 979-965 1.8-2.6 (6-8)
3 112-131 964-945 2.7-3.8 (9-12)
4 132-155 944-920 3.9-5.6 (13-18)
5 > 155 < 920 > 5.7 (>19)

16.  Winds
 Flooding
 Storm Surge

17.  Large wall or dome of
water that rushes into the
coastline as a result of a
hurricane making landfall
 To the right are the areas
affected by high storm
surges

18.  Strong vertical winds
 Cold water
 Movement over land
 Friction
 Lack of moisture

19. 1. Hurricane Andrew – 1992
2. Hurricane Hugo – 1989
3. Hurricane Fran – 1996
4. Hurricane Opal – 1995
5. Hurricane Frederic - 1979

20.  Damage is a result
of development
 There are more
developed areas and
possessions than in
the past

21. 1. Galveston – 1900
2. Southeast Florida – 1928
3. Florida Keys – 1919
4. New England – 1938
5. Florida Keys – 1935

22.  Lack of instrumentation to predict and track
storms
 People were not warned of the incoming danger
Results of the Galveston Hurricane

23. Arthur Hanna Omar
Bertha Isidore Paloma
Cristobal Josephine Rene
Dolly Kyle Sally
Edouard Lili Teddy
Fay Marco Vicky
Gustav Nana Wilfred

24.  Damage to your house from wind?
 Damage from flooding?
 Destroyed vacation house?
 Damage to family members’ homes?

25. Flooding of Tar River as result of
Hurricanes Dennis and Floyd
Dockside
Tar River
Estates
Mrs. Parker’s Final Water Level
Old House

26.  Extensive Flooding US 264 Bridge
 Extended Power
outages
 Flood Related
Deaths
 Property Damage

28.  Listen to warnings
 Take all warnings seriously
 Follow evacuations
 Prepare Food and Water for extensive
power outages

29. The End