Bushfires have shaped Australian environment for millions of years. Aboriginal people used fire for hunting and vegetation management. European settlers introduced fire suppression, leading to environmental damage. 1851 Black Thursday fires burned 5 million hectares, killing 12 people
Santa Ana winds are strong, dry downslope winds from Great Basin. About 10-25 events occur annually, lasting 1-7 days. Winds can reach speeds over 40 mph, often with near-gale force. Temperature increases 5°F per 1,000 feet descending
Firestorm is a conflagration creating its own wind system. Forms when heat draws in surrounding air, creating strong inward winds. Requires minimum burning area of 0.5 square miles. Can develop into mesocyclones and true tornadoes
7,994 wildfires burned 1,049,956 acres as of December 23, 2024. Season exceeded five-year average in wildfire activity. One person died and 1,680 structures were destroyed. Most burned acres since 2021 season
Fire whirl is a whirlwind induced by fire, often containing flame or ash. Can reach temperatures up to 2,000°F (1,090°C). Consists of burning core and rotating air pocket. Usually 10-50m tall, lasting few minutes
ABC ordered 20th season in March 2023, extending longest-running medical drama. Season 20 aired March 14, 2024 after writers' and actors' strikes. ABC renewed show for Season 21