Fig. 4From: Seasonality of prescribed fire weather windows and predicted fire behavior in the northern Great Plains, USATrend over time in the proportion of acceptable fire weather days (±1 SE) that fell within each half-season in the western Bismarck (top panels) and eastern Grand Forks fire weather zones that cover North Dakota and Minnesota, USA (bottom panels; see Table 1 for date ranges). Lines indicate linear year effects (solid = significant, P < 0.05; dashed = marginal, P < 0.10) in each half-seasonBack to article page