Charles: what distinguishes him from Kristin and how serious can it be?

A storm named Charles is approaching Portugal, bringing strong winds and heavy rainfall. The government has declared a state of alert, closing schools and urging people to stay home. Charles, formed in subtropical Atlantic, could cause significant damage, especially due to potential wind gusts exceeding 140 km/h and torrential rains of up to 100 liters per square meter in 12 hours. The storm's trajectory and interaction with another depression, Bruna, will influence its intensity. While the risk of flooding exists, authorities are prepared. The storm is expected to impact areas like Greater Lisbon, with warnings issued for several districts.