What Factor Has The Biggest Impact On A Ground Cover Fire?

What part of a ground cover fire spreads the most rapidly and usually does the most damage?

headThe head is the part of a ground cover fire that spreads most rapidly.

Usually found opposite the origin in the direction the wind is blowing.

The head burns intensely and does the most damage..

What is the fastest growing part of a wildland fire?

Head of a Fire: The side of the fire having the fastest rate of spread. Heavy Fuels: Fuels of large diameter such as snags, logs, large limb wood, that ignite and are consumed more slowly than flash fuels.

What is a consequence of falling relative humidity?

Large surface area relative to volume. What is a consequence of falling relative humidity. Decreased fuel moisture.

What is a natural cover fire?

Fighting Natural Cover Fires A review of the techniques and factors to be considered when combating grass, brush and forest fires —Photo by John Titchen NATURAL COVER fire fighting, the extinguishment of grass, brush, weeds, lots, forest, trash and dump fires, represents about 25 per cent of the alarms and 50 per cent …

When was the Los Alamos fire?

May 10, 2000May 10, 2000, was the day the wind-driven Cerro Grande Fire roared into Los Alamos, destroying 235 homes and displacing more than 400 people.

What is the leading cause of firefighter fatalities?

cancerAnother research study by the International Association of Firefighters in 2017 reports that cancer is the disease that causes the most death among firefighters, with a 61% rate of career line-of-duty deaths among firefighters between 2002 and 2017 being caused by it.

What caused the Cerro Grande fire to consume so much land so quickly?

The Cerro Grande Fire was a disastrous forest fire in New Mexico, United States of America, that occurred in May 2000. The fire started as a controlled burn, and became uncontrolled owing to high winds and drought conditions.

What is the difference between a ground fire and a surface fire?

Surface fires burn only surface litter and duff. These are the easiest fires to put out and cause the least damage to the forest. Ground fires (sometimes called underground or subsurface fires) occur in deep accumulations of humus, peat and similar dead vegetation that become dry enough to burn.

What influences fuel moisture the most?

Moisture contents in dead fuels can range between 2 and 30 percent. These values are strongly influenced by changes in weather and topography and can change quickly over time and space.

Which tool is a combination of hoe and rake?

A McLeod tool (or rakehoe) is a two-sided blade — one a rake with coarse tines, one a flat sharpened hoe — on a long, wooden handle. It is a standard tool during wildfire suppression and trail restoration.

What factor influences fire spread more than any other?

In general, fuels will ignite more readily at high temperatures than at low temperatures. Humidity, the amount of water vapor in the air, affects the moisture level of a fuel. At low humidity levels, fuels become dry and, therefore, catch fire more easily and burn more quickly than when humidity levels are high.

How do you extinguish a car fire?

If the car fire is relatively small and in the interior, use your car fire extinguisher. (Closing the doors and windows may also smother the fire.) If there’s a small amount of smoke coming from under the hood, pop the release but don’t lift the hood.

Which would make the best safety zone?

How do you identify a good safety zone? Consider the distance from the escaped fire as well as topography, winds, fire behavior, and fuels in the area. The best locations are usually “in the black;” those with a minimum of, or devoid of, ground/aerial vegetation; or large bodies of water.

When attacking a vehicle fire crews should?

Attacking the Fire Cool the vehicle from a distance first. Use fog if needed as you move closer. If it is an engine or rear compartment fire, the first attack team should attack the fire 45 degrees at an angle toward the front or rear of the vehicle.

What is the first step in developing any fire attack plan?

The success or failure of an effective fireground operation is dependent upon the actions of those first arriving crews. Proper apparatus placement is the first step for a safe and effective interior fire attack.

What is a Type 1 firefighter?

The Firefighter Type 1 leads a small group (usually not more than seven members) and is responsible for their safety on wildland and prescribed fire incidents. The FFT1 supervises resources at the FFT2 level and reports to a Single Resource Crew Boss or other assigned supervisor.

What does forward progress stopped mean fire?

When firefighters or other resources stop the forward progress of a fire but have not put in all control lines. Control Line.