The information for the following story is from the following Internet sites accessed 04/18/03:
http://www.msc.ec.gc.ca/cd/brochures/forecast_e.cfm
http://www.lakevermilion.com/windchill/
http://www.mcleansboro.com/features/windchill.htm
http://www.doc.mmu.ac.uk/aric/eae/Climate/older/Prevailing_Winds.html
http://www.weather.com/encyclopedia/winter/noreast.html

All About Wind

Would you believe there are different types of winds in the world? A prevailing wind is the wind that usually blows across a particular area or region. Each region on earth has its own prevailing wind and not all prevailing winds are the same. In Atlantic Canada, we have prevailing westerlies as our prevailing wind. Wind direction is defined by the direction winds blow from. Therefore, a prevailing westerly refers to a wind that comes mainly from the west.

Cold and Warm Fronts

A "front" is the coming together of two different air masses. Sometimes the coming together of these two air masses is unnoticeable, but other times it brings bad weather.

A "cold front" happens when a cold air mass moves into an area occupied by warmer air. Cold fronts bring lower or cooler temperatures and can create thunderstorms.