Isobars

Isobars show pressure and subsequently show wind patterns. They are often useful for pilots in directing the plane with the use of wind. This picture shown is of the various wind and pressure patterns in the USA. It's interesting to see how various patterns are similar not necessarily based on state, but on geographical attributes, such as the Appalachian Mountain range, running from Maine to Georgia, and then going west to Texas.

URL:http://www.pentictonflyingclub.ca/Feb08.htm