seclusion

A special case of the process of occlusion, where the point at which the cold front first overtakes the warm front (or quasi-stationary front) is at some distance from the apex of the wave cyclone.

Related terms:

• occluded front
• overrunning
• warm sector
• quasi-stationary front
• prefrontal squall line
• bent-back occlusion
• orographic occlusion