Pressure Gradient

What is Pressure Gradient?

Pressure Gradient meaning in Safety terms is

  • The difference in atmospheric pressure between two points on a weather map. That is, the magnitude of pressure difference between two points at sea level, or at constant elevation above sea level. Wind speed is directly related to pressure gradient. If distance between constant pressure lines is reduced by one-half, wind speed will be doubled. Conversely, if distance between lines is doubled, wind speed will be reduced by one-half. 


reference: Glossary A – Z | National Wildfire Coordinating Group