Abstract
The mesoscale warm area is often observed in the lower part of the unstable air column lying in the central part of a cold dome which is passing the Japan Islands across the Japan Sea. It is closely related to mesoscale disturbances which develop in the vicinity of a cold dome center.
It seems reasonable to imply that the cumulus convections caused by the predominant transport of sensible and latent heat from the warm sea surface are activated within the mesoscale convergent wind field and exert an effect of warming just above the condensation level.
