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The Bora – this is a strong and cold wind located in the mountains along the coastline of Croatia.
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The Foehn - these are warm and dry winds seen on the lee side of mountaintops. They can be very strong and can occur suddenly. These are the same thing as Chinook winds except they are located elsewhere, such as in New Zealand or in the Alps.
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The Khamsin winds – these are dusty winds seen in Egypt in the springtime.
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The mistral winds – these are extremely strong winds in the Rhône Valley of southern France, usually seen in the wintertime.
You do not need to memorize all of these winds unless they exist in your area. You can expect them to occur at various times of the year and cause a varying degree of damage to property.
AIR POCKETS AND EDDIES If you've ever traveled by air, you know about air pockets. These can be scary times for airline travelers and represent situations where to bodies of air moving and greatly different speeds and meet together. Airline pilots and meteorologists call this CAT, which stands for clear air turbulence. What this means is that you cannot see anything in the air itself to let you know is coming. Air pockets tend to be seen at about 7000 to 12,000 meters above the earth's surface and upper troposphere area. You might also see them at the tops of certain mountain ranges. If you see cirrus clouds, it could indicate a higher probability of having an air pocket. Most air pockets are just uncomfortable, but a few can be dangerous. It is very difficult to detect where an actual air pocket is located, even if you have conventional radar equipment. The best ways to detect these are remotely, using a scintillometer, Doppler radar, laser-based radar, and what is called an N slit inferometer. These techniques will all measure turbulence. There are certain areas where you can predict a higher chance of having an air pocket. These include near the jet streams, especially if there is horizontal wind shear in the 68
