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Winds Chinook Katabatic Sirocco Dust Storms Mistral. CHINOOK WINDS. What is a Chinook Wind? A Chinook is created when westerly winds blow warm and moist air over the Pacific Ocean towards the west coast of British Columbia.
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What is a Chinook Wind? • A Chinook is created when westerly winds blow warm and moist air over the Pacific Ocean towards the west coast of British Columbia. • The Chinook wind climbs the mountains it expands and cools. Some of the moisture condenses and falls to the ground causing it to rain. Where does a Chinook Wind occur? • Chinook winds are the most common in the Rocky Mountains particularly in Alberta. • Chinook Winds begin on the Pacific Ocean where they pick up moisture. As the Chinook wind reaches the coastal mountains it is forced to rise.
How do Chinook Winds effect the environment? • Chinooks winds cause a loss of moisture in the soil. Many trees, (ex. the white birch), cannot survive the rapid temperature changes caused by these winds. • The rapid temperature changes can also cause pneumonia, septicemia and shipping fever in cattle. • Chinook Winds cause a higher chance of grass and forest fires in Alberta. Do Chinook Winds have the same effects on people? • Since Chinook winds cause relief from the freezing temperatures of winter they also cause many people to have severe headaches.
Do Chinook Winds occur here in Windsor? • Chinook Winds can occur here in Windsor because of the fact that there are no mountains. No Mountains!
What is a Katabatic Wind? • Katabatic Winds arecold air which is much more dense and therefore heavier than warm air. • Katabatic winds begin as inversion winds. Like inversion winds, they are gravity-driven but they flow down the much steeper slopes of the coastal regions. Where do Katabatic Winds occur most frequently? • Katabatic Winds occur mostly in the Antarctic. • Katabatic winds occur where cold, heavy air flows down the slopes of the inland mountains and the ice plateau.
Where are Katabatic Winds least likely to occur? • Katabatic Winds are least likely to occur in flat regions of land. • These Katabatic Winds have never occurred in Windsor, because there is no big slopes. How are Katabatic Winds formed? • Katabatic Winds are formed when a rush of cold air goes down the slopes which then rapidly decreases the surrounding temperature as it slows down. • Katabatic Winds are activated by large scale weather features such as a high pressure system over the high elevations. It can also be effected by solar radiation (daylight) and radiational cooling (night).
What is a Sirocco Wind? • A Sirocco Wind is a wind which has a low pressure system above the Mediterranean and moves towards the East. • Sirocco Winds are hot, dry and dusty winds which come from the Sahara desert, where hot air rises and flows North. Where do Sirocco Winds exist? • Siroccos occur most frequently over Libya and Egypt, flowing northward into the Mediterranean basin. Do Sirocco Winds have different names? • The Sirocco has a lot of names for each area: Chergui: Algeria Chili: Tunesia Ghibli: Libya Chamsin: Egypt Sharkiye: Jordan Sharav: Israel, sharav is Hebrew for burning heat or heat wave Leveche: Spain, also called Leveccio or Solano Levanto: Canary Islands, where the wind is SouthEast
What is a Dust Storm? • A Dust Storm is extremely hazardous to agriculture, both crops and livestock. They can be devastating to a person’s health and well-being and can have terrible consequences for business. Why are Dust Storms so Dangerous? • Dust Storms are dangerous because of the fact that they are strong winds moving over dry ground with little or no vegetation and can lift particles of dust or sand into the air. • Dust Storms can reduce visibility, cause respiratory problems. • Dust Storms can cause power outages and can destroy computers and communication equipment because of the dust.
What is a Mistral Wind? • The Mistral Wind is a cold, northerly Katabatic Wind. They are most common during winter and spring, although they can occur year round. These winds are characterized by the sinking of cold air generated over mountains. Where do Mistral Winds occur and where do they not? • These strong, freezing winds occur in the Mediterranean, down the Rhone Valley and out over the Gulf of Lion. They can affect the south of Spain, northern Italy and south-eastern France. • Mistral Winds do not occur anywhere away from the Mediterranean Sea.
THE END Presented By: Erik, Troy & Scott Hope You Enjoyed Our Presentation.