Highs and Lows
Air masses and Fronts are large bodies of air with variations of temperature changes and changes in pressure. Air masses have many different random changes in humidity, pressure, and temperature. This have negative affects on the land that the air masses are over.
home.gif
fronts.jpg



3_warmcoldfronts.jpg
This picture displays how warm and cold fronts work.

220px-Warmfrontai.svg.png
This is a warm front.
warm-front_sm.gif



More links you can click on-
http://cde.nwc.edu/SCI2108/course_documents/earth_moon/earth/weather/airmasses.htm
http://geography.about.com/od/climate/a/highlowpressure.htm
https://courseware.e-education.psu.edu/public/meteo/meteo101demo/Examples/Section9p02.html
http://cimss.ssec.wisc.edu/wxwise/class/frntmass.html
http://www.ess.uci.edu/~yu/class/ess55/lecture.8.cyclone.pdf

Created by, Sean M.