Surface winds are generated by the daily ritual of the  
 heating and cooling of the earth's surface.  Wind can
 cause temperatures to feel cooler than the
 surrounding air temperature creating what is termed
 a "wind chill".  

 Winds also work hand-in-hand to create pressure  
 and flow into areas similar to water from a garden
 hose.  Using the same amount of water moving
 through the hose you have a flow of a certain
 pressure.  If you make that hose smaller or use your 
 finger at the end to make the exit tighter, the end        
 result is higher pressure.  Wind works the same way.

Depending on which direction the winds are blowing determines whether there is a high pressure or low pressure system or even a frontal boundary over a certain area.



Winds can cause objects and debris to sail into the air and during extreme conditions, such as thunderstorms, sand storms, derechoes or tornadoes; it can cause damage or even death.

 WEATHER FACTOID:

Weather instruments such as this Anemometer measure wind direction and speed in knots.  Winds are always reported in the direction they are coming from, hence the arrow-like shape indicating where the wind is headed.