Meteorology
The increased power of Cluster Supercomputers allows the weather models to go to higher resolution, to take more things into account and therefore provide a better outcome. In the other words, it will allow scientists to interpret readings over much narrower areas and provide a more accurate representation of weather conditions. This will allow them to be more specific in predicting where and when particular weather events will happen.

The listed of the most important software related to Meteorology supporting cluster architecture is:
MM5, WRF, HRM, ARPS, ALADIN