WEATHER PATTERNS ASSOCIATED WITH THE MOST HAZARDOUS HEAVY RAIN EVENTS IN SÃO PAULO AND NOVA FRIBURGO IN RECENT YEARS

Código

XXVI-SBRH0527

Autores

Eliana Palmeira Vale, Giovanni Dolif, Rafael Alexandre Ferreira Luiz, Graziela Balda Scofield, Glauston R T Lima, Priscila B. Bucholz, Leonardo Bacelar Lima Santos

Tema

I - Desastres e Emergência Climática

Resumo

This paper investigated the most hazardous heavy rainfall events that occurred in the cities of Sao Paulo and Nova Friburgo in recent years, aiming to identify the categories of weather patterns associated with these events. The investigation revealed that the propagation of cold fronts was the most frequent precursor of heavy rainfall events in both cities. Weather patterns related to the South Atlantic Convergence Zone, the Moisture Convergence Zone, and smaller scale troughs were also identified as relevant. The results of this study may be useful in future research that correlates the identified weather pattern categories with urban flash floods. Such studies may contribute to the improvement of flash flood warnings and the mitigation of their impacts.