Basic thermodynamic concepts are applied to the condensation of a vapor resulting in a general expression for the free energy change of the system for the formation of a nucleation embryo.

A dynamic version of the two dimensional kinematic cloud model of Rutledge and Houze (1987) has been developed to investigate the effect of microphysics on circulations within the stratiform region associated with mesoscale convective systems. The design of the model allows for specified inputs of hydrometeors, water vapor and heat from the convective region.

The concept of "moist available energy," defined by Lorenz is applied to study the potential energy available for cumulus convection in a conditionally unstable atmosphere.

Development of frontal disturbances is considered from a non-linear initial value point of view.

There is a complex interaction between the formation of the high tropospheric Tibetan anticyclone and the development of the Indian Monsoon.

Two detailed, multi-sensor case studies of mesoscale convective storms occurring in summer over the central and eastern Colorado Rockies are presented.