Weather conditions such as wind, temperature, and humidity also contribute to fire behavior. Wind is one of the most important factors because it can bring a fresh supply of oxygen to the fire and push the fire toward a new fuel source.
What are the three factors involved in fire behavior?
Once a fire ignites in forest or rangeland, its behavior depends on the three factors that make up the fire behavior triangle: the amount and arrangement of fuel, the topography, and weather conditions (Figure 2).
What are the 3 components required for a wildfire?
Oxygen, Fuel, and Heat
These three elements make up the fire triangle. Remove any one of them and the fire will not burn. Heat first comes from the ignition source that in nature is lightning or lava. Fuel is any material that will burn.
How does weather influence fire behavior?
Wind increases the supply of oxygen, which results in the fire burning more rapidly. It also removes the surface fuel moisture, which increases the drying of the fuel. Air pressure will push flames, sparks and firebrands into new fuel. … High winds will cause the head of a fire to move ahead rapidly.
What are the 4 behaviors of fire?
Fire behavior includes such things as how fast a fire burns (rate of spread), how hot it burns (fire intensity), the presence of fire whirls, and ember production and spotting.
What are the 7 factors that affect fire development?
Interior finish in a room, fuel continuity, feedback, material ignitability, thermal inertia of the fuel, proximity of flames to walls are the major factors that influence fire growth.
What has the greatest influence on fire behavior?
Fuel characteristics strongly influence fire behavior and the resulting fire effects on ecosystems. A fuel’s composition, including moisture level, chemical makeup, and density, determines its degree of flammability. Moisture level is the most important consideration.
What are the 7 weather elements?
What Are The Elements Of The Weather And Climate?
- Air (Atmospheric) Pressure.
- Wind (Speed & Direction)
- Clouds (Type & Cover)
- Sunshine Duration.
How does each elements affect weather?
The amount of sunshine the Earth receives (which is a characteristic of solar radiation) greatly influences other elements of the weather like ambient temperature, and more indirectly, humidity and air pressure. … Temperature, pressure and humidity (moisture) can interact to form clouds.