Midlatitude cyclones are large low pressure storm systems that form in the midlatitudes. They develop as warm and cold air masses converge, forming fronts where the air masses meet. As the cyclone moves eastward, the cold front typically advances faster than the storm itself and eventually catches up to the warm front. Meteograms are charts that plot changes in weather conditions over time and can clearly show the passing of fronts and associated changes in temperature, wind, precipitation and other conditions.
![The Midlatitude Cyclone ,[object Object],[object Object],http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/prs/lwprs/def.rxml](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)