Climate change is worsening wildfires across forested land and lengthening wildfire seasons in the western United States.
Heat, dryness, and wind—the main components of wild fire weather—affect fire behavior. A new analysis from Climate Central shows the frequency of fire weather days are increasing across most of the American West, driven by dryness and heat.
Fire weather conditions are causing problems even where fires aren't burning. When fire weather is in the forecast, utilities may shut off power to prevent equipment-related ignitions.
Smoke from the many wildfires harms people hundreds of miles downwind, especially those with asthma or other health conditions.