The initial frontal wave (or low pressure area) forms at the location of the red dot on the image. It is usually perpendicular (at a right angle) to the leaf-like cloud formation (baroclinic leaf) seen on satellite during the early stage of cyclogenesis. The location of the axis of the upper level jet stream is in light blue.
Cyclogenesis is the development or strengthening of cyclonic circulation in the atmosphere (a low pressure area).[1] Cyclogenesis is an umbrella term for several different processes, all of which result in the development of some sort of cyclone. It can occur at various scales, from the microscale to the synoptic scale. Extratropical cyclones form as waves along weather fronts before occluding later in their life cycle as cold core cyclones. The process in which an extratropical cyclone undergoes a rapid drop in atmospheric pressure (24 millibars or more) in 24 hour period is referred to as bombogenesis, and is usually present during the formation of a nor'easter.
Guy Perea Presidential Elector President of The United States
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