A. what atmospheric conditions might precede and thus set the stage for a wildfire?

- Dry weather

- Windy conditions.

Explanation:

     There are two types of factors that determine the degree of fire hazard: constant factors, such as fuel material type, forest type and relief, and variable factors, such as fuel material humidity and weather conditions, such as wind speed and direction, relative humidity, temperature, dew point, precipitation and atmospheric instability.

     The intensity of a fire and its speed are directly linked to relative humidity, air temperature and precipitation. The possibility of occurrence as well as the frequency of fires are related to local weather conditions. Thus, the knowledge of the meteorological variables is an important step for the elaboration of prevention and firefighting programs in vegetation. From the climate analysis, it is possible to determine the periods most likely to occur, facilitating the adoption of preventive measures, the estimation of logistics for combat and damage caused by fire to the environment. However, it is emphasized that it is not enough that the factors directly associated with the occurrence of vegetation fires are favorable, for a fire to occur, a source of ignition is required to start the combustion process.