HURRICANES

Brendan MazanecJordan Waller

Nicholas SextonMitchell McConnell

John KuchinskiBailey Vaughan

Scales of WindCategory Wind Speed Damage1 ___ – ___ MPH Some Damage

2 96 – 110 MPH Extensive Damage

3 111 – 129 MPH __________ Damage

4 ___ – ___ MPH Catastrophic Damage

5 157+ MPH Total Destruction

Watches vs. Warning ______________

Development Possible

______________Immediate Threat

Hurricane Attributes Causes of a Hurricane

Warm wet ______________ (intense low pressure) over the sea begins to ____ water and becomes stronger.

Hurricanes always have circulation ____________ in the Northern Hemisphere.

If the water is at __ degrees or above. Combined actions of air, water, and heat

produce a huge spinning system of bans of rain and high wind.

Hurricane Conditions

Conditions Necessary First, the ocean waters must be warm

enough at the _________ to put enough ______ and _______ into the atmosphere

Conditions Cont. Second, ________ from the evaporated

sea water must combine with the heat and ______ to form a source of fuel for the hurricane

Conditions Cont. Third, a wind pattern must be near the _____________

This will allow the air to spiral ________

This process causes bands of ____________ to form, warming the air even further and causing it to rise higher in to the atmosphere

If winds at these higher levels are relatively light, the storm structure will remain intact, forming the basis for a hurricane

Source of a Hurricanes Energy

Source of Energy The energy that fuels a hurricane comes

from the evaporated _______________

Rotation of Hurricanes

Angular momentum Angular momentum comes from ____ of

the storm

Rotation The hurricanes ______ is caused by the

coriolis effect Starts West then works ____ then

rotates ____ as it moves North in Northern hemisphere

Stages Will start as a _____________________ This is a ___ pressure zone Can progress into a ___________, this

can take half a day to a few days The pressure continuously falls to cause

this Heavier precipitation, as well as stronger

winds

Cont. Tropical storms can then progress into a

___________ in relatively the same time frame

These are _______ than tropical storms Much lower pressure, the lowest

pressure system in the world Hurricanes can last as long as __-__

weeks

Tracking Hurricanes

Tracking Hurricanes (Doppler Radar) Doppler ______ can detect rain associated

with tropical cyclones

It typically covers rain within a ___ to ___ mile distance from the location of the radar station

Doppler radar can also provide estimates of ________ amounts and help depicts a hurricane's rain bands, eye and eye wall.

Tracking Hurricanes (Satellites) _________ allow meteorologists to look over several images of a

forming tropical storm

From here they can determine the symmetry of _____ patterns, and the character of the hurricane’s eye.

Tracking Hurricanes (Reconnaissance Aircraft) During _____________, the Army Air Corps and Navy

pilots began making reconnaissance flights into the eye of hurricanes

The pilots gathered information on a hurricane's location and intensity

Today, reconnaissance aircraft are still actively used to gather tropical cyclone information

The information is then passed on to the National Hurricane Center (NHC) in Miami, Florida, and to _______________________________________.

The Hurricane MKIID

Why Do Hurricanes Follow A Certain Path

WHY DO HURRICANES FOLLOW A CERTAIN PATH?

• Hurricanes that affect the US start out near the ________________ in Africa

• ____________ push hurricanes to the US• The eastward blowing ___________causes

hurricanes to approach the east coast• Areas in the US have their own fronts and

pressure zones which influence the hurricane

How do Hurricanes Die?

How Hurricanes Die When hurricanes

travel over ____ or ____ water, its energy source (warm water and moisture) is gone and the storm is weakened, causing it to lose its energy and die.

Hurricane Safety

HURRICANE SAFETY

• Learn hurricane evacuation routes and follow authorities’ directions

• Secure your home and cover all windows

• Listen to ________ or radio for information

• Ensure a safe, plentiful supply of food and _____

• Take refuge in a small interior room on the lowest level

• Return out of cover only when officials say it is safe

Hurricane Damage

Types of Hurricane Damage __________-An abnormal rise of water generated

by a storm. Caused primarily by strong winds of a hurricane. When the circulation of water reaches the continental shelf the water rises causing flooding and destruction of the coast.

__________-Very strong winds can blow down trees and remove roofs as well as create flying debris

__________- Flooding of major rivers and lakes add to the storm surge flooding as well as the torrential downpour from the Hurricane itself.

Hurricanes in the Rest of the World

WHAT HURRICANES ARE CALLED IN OTHER PARTS

OF THE WORLDWestern Pacific-_________Indian Ocean- __________

Economic Impact of Katrina

Effects of a Hurricane Storm surges, flooding, tornadoes,

strong rip tides and ____________. Slows the ___________ of an area. Changes ecosystems.

Economic effects of Hurricanes.(________) Thousands were left unemployed Most costly hurricane in American history. ______ destroyed oil rigs and slowed oil production

causing gas prices to spike across the United States. In 2004, __% of U.S. wheat exports, __% of corn

exports, and __% of soybean exports passed through Gulf ports. Shipping did not occur until later in the fall, when ports would again be operational.

Also insurance companies paid a total ___ billion dollars in insurance claims, the most in United States history.