Parish short range other
The NAM is indicating strong frontogenesis on the border of Missouri, Oklahoma, and Arkansas on Saturday March 30, 2013 at 12 UTC. The first image below shows the strong frontogenesis over this area at this time. The frontogenesis could be induced by convergence. The second image below shows divergence on Saturday March 30, 2013 at 12 UTC. There is strong negative divergence or convergence located over the eastern half of the Great Plains. This is the same location as the strong frontogenesis. The convergence at this time will enhance frontogenesis by contracting the isotherms. The third image below shows the 3 hour forecast precipitation for Saturday March 30, 2013 at 15 UTC. The heaviest precipitation is forecast over the same areas as where there was the strongest frontogenesis 3 hours earlier. Frontogenesis will definetely cause rain for the eastern half of the Great Plains on Saturday March 30, 2013.