Hot, dry weather...
Bushfires can vary in size depending on many factors such as weather conditions, fuel load, and geography. Some bushfires can cover hundreds of thousands of hectares, but the largest ones can exceed millions of hectares. The size of a bushfire can also be influenced by firefighting efforts and strategies employed to contain it.
Approximately 50-70% of bushfires are ignited by lightning strikes, depending on the region and climate conditions. Lightning is a significant natural cause of wildfires, especially in areas prone to thunderstorms. However, human activities also contribute to a substantial number of bushfires. The exact percentage can vary yearly based on weather patterns and other factors.
Bushfires are not considered geological events, as they are primarily driven by weather conditions and human activities rather than geological processes. However, the presence of certain geological factors such as dry vegetation, topography, and climate can influence the frequency and intensity of bushfires in a particular region.
Global warming can lead to more frequent and intense heatwaves and droughts, creating dry conditions that increase the likelihood of bushfires. Warmer temperatures can also dry out vegetation, making it more susceptible to ignition. Additionally, shifting weather patterns due to climate change can alter traditional fire seasons and extend the window when bushfires are likely to occur.
The Canberra bushfires of 2003 were started by lightning strikes in the Kosciuszko National Park to the west of the ACT. These spread to the adjoining Brindabella and Namadgi National Parks near Canberra and a state of emergency was declared in the city itself when, at 2.45pm on 18 January 2003, the fires reached the outskirts of Canberra and began encroaching upon the city. The fires were exacerbated by the heat and dry conditions, a common problem in southern inland Australia in summer.
High humidity cold weather and rain.
damp/moist
Bushfires can vary in size depending on many factors such as weather conditions, fuel load, and geography. Some bushfires can cover hundreds of thousands of hectares, but the largest ones can exceed millions of hectares. The size of a bushfire can also be influenced by firefighting efforts and strategies employed to contain it.
Bushfires are not considered geological events, as they are primarily driven by weather conditions and human activities rather than geological processes. However, the presence of certain geological factors such as dry vegetation, topography, and climate can influence the frequency and intensity of bushfires in a particular region.
Australia is a very dry continent with lower rainfall than other continents. It is drought-prone, with long, hot, dry summers in the southern states. Vegetation, as a result, becomes very dry, easily ignited and tinder for fires. The intensity of bushfires is increased by this dry vegetation, which is why bushfires often occur after a period of heatwave. There are usually strong, gusting winds, which come from the south or west, and these fan the bushfires.
What is the term for the study of processes in the earth's atmosphere that produce day to day weather.
using satellites,radar and other technologies,meterologists study the atmospheric conditions that produce weather. 2.many meterologists work as weather observes and measure factors such as wind speed, temperature, and rainfall. this weather information is then use weather maps,satellite images and computer models to patterns of weather forecasts.
Cumulonimbus clouds typically produce severe weather such as thunderstorms, heavy rainfall, lightning, hail, and strong winds. They are associated with adverse weather conditions and can sometimes lead to tornadoes.
Cirrocumulus clouds generally do not produce precipitation, as they are high-altitude clouds made up of ice crystals. They are usually associated with fair weather conditions.
Australia experienced extreme heatwaves in 2019, with temperatures exceeding 40 degrees Celsius in many parts of the country for an extended period, leading to bushfires and drought conditions.
Global warming can lead to more frequent and intense heatwaves and droughts, creating dry conditions that increase the likelihood of bushfires. Warmer temperatures can also dry out vegetation, making it more susceptible to ignition. Additionally, shifting weather patterns due to climate change can alter traditional fire seasons and extend the window when bushfires are likely to occur.
The Canberra bushfires of 2003 were started by lightning strikes in the Kosciuszko National Park to the west of the ACT. These spread to the adjoining Brindabella and Namadgi National Parks near Canberra and a state of emergency was declared in the city itself when, at 2.45pm on 18 January 2003, the fires reached the outskirts of Canberra and began encroaching upon the city. The fires were exacerbated by the heat and dry conditions, a common problem in southern inland Australia in summer.