What does FW stand for?

Met Eireann's fire weather index also warned that persistent dry and windy weather means there is a high to extreme risk of wildfires into the weekend.

The Tasmania Fire Service (TFS) downgraded two major blazes from emergency to watch-and-act status, with calmer conditions bringing a much-needed reprieve for fire crews ahead of worsening fire weather later in the week.

Drought and heat fuelled the fire risk in the southeastern parts of the country and the off-the-scale heat wave conditions produced bushfires so ferocious that 'very extreme' and 'catastrophic' categories have been added to the official fire weather index.

Our statewide network of ANR campus, regional and county scientists is advancing understanding of California landscapes and fire weather patterns.

The dangerous conditions come as the Bureau of Meterology issued a fire weather warning for today and tomorrow morning, saying strong and gusty hot winds blowing from the east that were spreading the flames would not ease until at least midday on Monday, the Sydney Morning Herald reports.

That is the fire weather trifecta right there," Ventura County Fire Department spokesman Bill Nash said.

Fire suppression costs may continue to increase, with decreasing effectiveness under extreme fire weather and fuel conditions.

The explosive potential for wildfires was forecasted well in advance with Fire Weather Watches being issued the day before.

Chief Teie covers fireline safety, fire weather, topography and fuels, wildland fire behavior, fire extinguishment methods, initial attack strategy and tactics, the use of firefighting resources, wildland/urban firefighting strategy and tactics, incident command system, firefighting realities, and firefighting situations.