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Weather Phenomena By: Eleanor Joyce City of Salem Schools Hurricane activity in the United States. http://www.usgs.gov/themes/hurricane.gif Satellite view of a hurricane in the Caribbean Sea http://topex-www.jpl.nasa.gov/science/images/hurricane.jpg Parts of the storm

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weather phenomena

Weather Phenomena

By: Eleanor Joyce

City of Salem Schools

hurricane activity in the united states
Hurricane activity in the United States.

http://www.usgs.gov/themes/hurricane.gif

satellite view of a hurricane in the caribbean sea
Satellite view of a hurricane in the Caribbean Sea

http://topex-www.jpl.nasa.gov/science/images/hurricane.jpg

parts of the storm
Parts of the storm

Winds are breezy at the edge of the storm and increase to a maximum in the eyewall. Winds are relatively light in the ‘eye’ itself.

slide5

The Saffir-Simpson Hurricane Table

Sustained Storm Resulting

Winds Surge Damage

Category 1 74-95 mph 4-5ft Trees/Power Down

Category 2 96-110 mph 6-8ft Sign, roof & building damage

Category 3 111-130 mph 9-12ft Widespread damage/flooding

Category 4 131-155 mph 13-18ft Buildings destroyed/damaged

Category 5 155+ mph 19+ft Catastrophic damage/flooding

Categories 3,4 & 5 are major hurricanes!

hurricane facts
Hurricane Facts

Tropical storms need warm water(at least 80 degrees) to grow

The average hurricane uses as much energy in a day as the entire US in 6 months

Hurricanes can not be stopped with nuclear weapons or cloud seeding

why are hurricanes so destructive
Why are hurricanes so destructive?

1. Wind

2. Rain

3. Storm Surge

4. Tornadoes

no utilities10
No Utilities

Including lights, air conditioning, refrigeration, cooking, fans, television, stoplights, gasoline pumps, computers, clocks, banks (ATMs), freezers, refrigerators.

Water and sewage treatment centers are also disabled. This creates major health problems. Getting drinking water is a problem

slide11

HEAVY

RAIN

AND

FLOODING

slide12

Slow moving storms can easily dump 15-20 inches of rain over a wide area.

Debris clogs sewers and drainage ways.

Flood waters contaminate drinking water

High water forces insects, snakes and other wild animals to higher ground (your home).

Flood damage not covered by home owners insurance.

IT RAINS ONE INCH PER HOUR

storm surge
Storm Surge

Low pressure and converging winds raise sea levels under the hurricane. When the hurricane makes landfall, so does the higher sea level. Powerful waves ride on top of the surge.

Storm surge destroys coastal buildings and inundates barrier islands.

Storm surge can travel well inland through harbors, rivers, creeks and canals.

Storm surge is responsible for the greatest loss of life from a natural disaster in US history, Galveston Is.

tornadoes
Tornadoes

Hurricanes often create tornadoes bringing even more severe damage to regions struck by hurricanes

regions in the u s that are in tornado alley
Regions in the U. S that are in “tornado alley.”

http://www.usgs.gov/themes/hurricane.gif

map of south asia and southeast asia showing the wind patterns of the winter and summer monsoons
Map of South Asia and Southeast Asia showing the wind patterns of the winter and summer monsoons

http://www2.crl.go.jp/ck/ck121/windprof/image/monsoon.gif

working in the rice paddies
Working in the rice paddies

Residents of Asia and Southeast Asia depend on the Monsoon rains to grow rice.

http://www.nri.org/WSS-IWRM/Photos/India/paddy.jpg

  • http://www.millenniumassessment.org/images/photos/rice.paddy.jpg
bangladesh is often flooded during the monsoon season
Bangladesh is often flooded during the monsoon season

http://www.sdnbd.org/sdi/issues/climate_change/napa/images/image-flood.jpg

http://www.oxfam.org.uk/atwork/emerg/images/Bangcard.jpg