They are most likely to be found along frontal boundaries of an air mass during the spring months.
A low pressure area formed along a frontal boundary near the southeastern United States.
Later that day, Gordon merged with a frontal boundary while centered over Georgia.
Activity shifted into central Florida on March 30 as a frontal boundary stalled out across the state.
It was developed completely from surface-based weather observations, including descriptions of clouds found near frontal boundaries.
The system was subsequently absorbed by a more powerful frontal boundary approaching from the northwest.
The system was absorbed by a strong cold frontal boundary later that day.
On June 17, a low pressure area cut off from a stationary frontal boundary near Bermuda.
In turn, precipitation can enhance the temperature and moisture contrast along a frontal boundary.
Most of them developed from a frontal boundary.