![]() ![]() 1979, Johnson 1992) and the behavior of burning fires (Schroeder and Burk 1970, Turner and Romme 1994). Climate and weather exert a dominant control over fuel moistures (Fosberg 1972), ignitions from lightning (Fuquay et al. The occurrence of fire ignitions and fire behavior are driven by natural factors, such as local and regional weather and climate conditions (Hubbard 1980, Bessie and Johnson 1995, Allen 2002, Westerling et al. The definition of subseasons also enhances our understanding of plant growth and development throughout the seasons, and provides managers with an objective tool to anticipate and adapt to the changing weather conditions. Our method for identifying subseasons could be applied by scientists using data from other regions to obtain subseason boundaries appropriate for their climatic regimes. The quantitative establishment of these fire subseasons defines homogeneous periods of weather regimes that will improve the outputs of some fire models by controlling for seasonality. From these results, we concluded that fire-weather can assume a uniform state for anywhere from two to six weeks, and then change into a considerably different regime. These results were partially validated against databases containing 29 years of historical fires and 16 years of historical Energy Release Component (ERC) data. From this analysis, we identified six subseasons between March 1 and September 30 and explored the average weather conditions during each subseason. Then, we used multivariate analysis of variance (MANOVA) of each calendar day, based on before and after periods of twelve days to identify the most distinct, natural breaks as expressed by the combination of weather variables as they change throughout the fire season. First, we conducted an exploratory analysis of weather conditions using the univariate t-test to determine if natural breaks in the weather conditions could be identified. We used a long-term dataset of weather parameters to characterize comparatively homogeneous periods, or subseasons, within the fire season. You can also visit to check on the latest air quality wherever you live.Īs rain chances increase over the next couple of days, a southern wind will take over, which should push the smoke away from the area and clear things up.Weather and climate contribute to the multidecadal, seasonal, and daily cycles of the potential for fire ignitions and for the severity of fires. However, the air quality will still be less than ideal over the next 24-36 hours, so it is advised to monitor your outdoor activity and check back on the latest forecast to see where things stand. The worst of the smoke will be this afternoon, and it should begin to slowly clear out throughout the day on Wednesday. ![]() As a result, smoke and other pollutants that are unhealthy to breathe in make it down to the surface and can cause us harm in we are out in it for too long.Īn Air Quality Alert is in place across the entire WCIA-3 viewing area until Wednesday Evening. Essentially, the elements near the ground move up and the elements aloft (including the wildfire smoke) move on down. This is because during the afternoon hours, the sun heats up the ground, and this air near the ground rises and begins to vertically “mix” with the properties of the air above. The Air Quality has officially been deemed “Unhealthy” across much of the area, meaning that the air outside is not particularly suitable for anybody to be out in, especially those will respiratory illnesses. Although not as burdensome to driving as fog is, this smoke will require those on the road to pay a little extra attention, as objects ordinarily in plain sight down the road may not come into view right away. are less than 5 miles in many spots, and up north where the smoke is the thickest, visibilities are as low as 2 miles. The air quality has taken a hit, and being outdoors for extended periods of time is not recommended. Although technically the skies are free of clouds, there is a translucent, overcast look outside from this smoke but the visuals are not the only thing that the wildfire smoke is affecting. ![]() The Canadian wildfire smoke that made its presence felt across the area weeks ago has returned, and this time it is much more dense than before. ![]()
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