As the temperature gradient steepens during frontogenesis, the thermal wind becomes imbalanced. They can also indicate derived atmospheric fields such as vorticity, stability indices, or frontogenesis. Thermal wind causes a deformation field and frontogenesis may occur. In frontogenesis, temperature gradients need to tighten for initiation. As it progressed southward, the storm intensified, with frontogenesis occurring the next day. Within a mid-latitude cyclone, these two key features play an essential role in frontogenesis. Atmospheric frontogenesis models&colon; Mathematical formulation and solution. Semigeostrophic frontogenesis theory focuses on the role of horizontal deformation and shear. Frontogenesis occurs as a result of a developing baroclinic wave. During frontogenesis, the temperature gradient tightens and as a result, the thermal wind becomes imbalanced. Frontogenesis is the process of creating or steepening the temperature gradient of a front.