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
By: Eleanor Joyce
City of Salem Schools
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.
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!
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
3. Storm Surge
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
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
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.
Hurricanes often create tornadoes bringing even more severe damage to regions struck by hurricanes
Residents of Asia and Southeast Asia depend on the Monsoon rains to grow rice.