Precipitation associated with extratropical cyclones

The role of cyclones and fronts for the precipitation distribution in Southern Hemisphere

Approximately 70 to 90% of the total precipitation that occurs in many regions across the mid and high latitudes in the Southern Hemisphere is directly caused by extratropical cyclones and their associated fronts. The damage potential of precipitation from these systems is quite significant, potentially resulting in billion-dollar economic losses and posing great risks to human life, such as floods, landslides in highly vulnerable areas, crop losses, and damage to urban infrastructure in general.

Cyclone precipitation

Associated precipitation Figure 1.


Souza, M. R., Piva, E. D., Nascimento, E. L., Gan, M. A., Anabor, V., Gozzo, L. F. Precipitation changes in cyclones and fronts over Southern Hemisphere in CMIP6 models. Theoretical and Applied Climatology (in preparation). 2024.

Souza, M. R. “Extratropical cyclones and associated precipitation in Southern Hemisphere: present and future climate.” Ph.D. diss., Federal University of Santa Maria, 2023. https://repositorio.ufsm.br/handle/1/31129

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