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Daily Fire Weather Index forecast. The Forest fire weather index (FWI) (French: indice forêt météo, IFM) is an estimation of the risk of wildfire computed by Météo France and the Meteorological Service of Canada. It was introduced in France in 1992 but is based on a Canadian empirical model developed and widely used since 1976. [1]
Wildland fire behavior is affected by weather, fuel characteristics, and topography. Weather influences fire through wind and moisture. Wind increases the fire spread in the wind direction, higher temperature makes the fire burn faster, while higher relative humidity, and precipitation (rain or snow) may slow it down or extinguish it altogether ...
The 2024 wildfires in Canada began as an extension of the record-setting 2023 wildfires.The country experienced an unusually long fire season in 2023 that lasted into the autumn; these fires smouldered through the winter and about 150 re-ignited as early as February 2024.
The ensemble variant of the GEM is known as the Global Ensemble Prediction System (GEPS). It has 20 members (plus control) and runs out 16 days, the same range as the American global forecast system. The GEPS runs alongside the GFS ensemble to form the North American Ensemble Forecast System. A regional ensemble prediction system (REPS ...
The 2021 British Columbia wildfires burned across the Canadian province of British Columbia.The severity of the 2021 wildfire season has been attributed to the combination of extreme heat, lower than normal rainfall, and "repeated severe thunderstorms and lightning events" by the BC Wildfire Service, [2] and possibly exacerbated by human-caused climate change.
The North American Ensemble Forecast System (NAEFS) is a joint project involving the Meteorological Service of Canada (MSC) in Canada, the National Weather Service (NWS) in the United States, and the National Meteorological Service of Mexico (NMSM) in Mexico providing numerical weather prediction ensemble guidance for the 1- to 16-day forecast period. [1]
A fire danger index of between 12 and 25 on the index is generally considered a "high" degree of danger, while a day having a danger index of over 50 is considered a "severe" fire danger rating. Above this level in 2010 a distinction was made between forest and grassland fuels.
The fire burned around 23,015 hectares (56,871 acres) and between 30 and 40 structures were destroyed. [88] [89] The response to the fire included widespread evacuation orders of the surrounding area, displacing around 5000 people. [90] This wildfire was the largest recorded in the history of Nova Scotia. [84] [91]