In this matter, this study investigates the main features observed in the raining systems that propagated or developed over the RMSP during the year of 2019. For this analysis we have used the rain estimates from the SELEX S band dual polarization Doppler weather radar from DAEE/CTH deployed at Salesópolis city that it is 70 km distant from RMSP. The rain estimates were based Ryzhkov et al. (2005) methodology and were retrieved every 5 minutes with a resolution of 0.5 x 0.5 km2. To depict the temporal and spatial evolution of the rainstorms, we have employed TITAN algorithm to retrieve the life cycle of the individual storms that propagated or formed over the RMSP. TITAN was adjusted to use rain estimates fields instead of volumetric weather radar. To cluster the raining systems, a threshold of 1 mm/h has been defined in TITAN. Based on 2019 radar data, it was possible to identify and track 26,851 rainstorms over a radar domain of 120 km radius. 36% of those rainstorms were observed during summer, while autumn had 30%, winter showed 8% and spring presented 26%. Moreover, 40.5% of those systems have been characterized as single storms, while 59.5 % were complex, i.e., it suffered split or merge during their lifecycle. Of the total number of tracked rainstorms, 19% were observed in the RMSP area and 2.5% were classified as single storms and 16.5 % were complex type of systems. The majority of single storms had duration of one hour while complex systems vary from 2 to 4 hours. In terms of time of initiation, single storms formed between 16-18 UTC while complex storms at 18 UTC. In terms of precipitation diurnal cycle, the maximum precipitation occurred between 16-19 UTC for both type of storms. Considering only the raining systems that formed inside the RMSP area, we found that most of the single storms initiated at 17 UTC while the complex systems were at 20 UTC. For those that formed outside the RMSP and move in, we found that single storms formed around 16 UTC while complex systems do not present a well defined time of initiation. Differences were also observed in rain volume. For example, singles storms that propagate over the RMSP produced 65% of the rain volume of the complex systems. Complex systems were responsible for more than 90% of the total rain volume observed in the RMSP as they are more numerous and present larger size.
For the conference we will expand the analysis to other two more years and explore how the rain features change with the different circulations.

