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Forces and Force Balances
The Development of High- and Low-Pressure Systems
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High- & Low-Pressure System Development
Surface Friction and Wind Deflection: A force vector diagram illustrating the balance of forces in the presence of varying degrees of friction.

Courtesy of Dept. Atmospheric Sciences, University of Illinois at Urbana-Champaign

Jetstreaks, flow curvature, and low-pressure systems: View examples of how divergence at the jetstream level influences the development of surface low-pressure systems.

Courtesy of Dept. of Atmospheric & Oceanic Sciences, University of Wisconsin-Madison

Related Web Sites
WW2010 Guide to Forces & Force Balance Learn more about how force balance and imbalance can create surface high- and low-pressure systems.

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois
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