A low-pressure weather system described as a “once-in-five-year storm” moves through Perth, causing widespread disruption and damage. Across the city, strong winds and heavy rain bring down trees and power lines, with roads flooded or turned into “rivers.” The storm’s impacts are reported to begin after the system is tracked south-east on Monday, then reaches and affects Perth. Power outages are widespread, with about 70,000 customers reported to remain without electricity. Emergency and utility responses are underway to restore power and clear damage, while the affected area continues to deal with hazardous conditions from fallen trees, downed lines and flooding. The three reports present the same overall picture: a significant weather event, physical damage to infrastructure and vegetation, and a large-scale power outage affecting tens of thousands of residents. No additional causes, casualty figures, or duration estimates beyond the immediate aftermath are included in the provided excerpts.