A case study of extended east coast frontogenesis.

Both geostrophic and observed wind deformation play a role in the coastal frontogenesis. The frontogenetical process involves a weak cyclone which strengthens the preexisting temperature gradient as it moves N. A moist baroclinic zone remains in place along the coast in the absence of strong cold advection in the wake of the weak cyclone. The residual moisture, enhanced baroclinicity and surface vorticity are important factors cntributing to a second disturbance which intensifies as it moves NE parallel to the coast along the frontal zone.-from Authors