Scientists Fly Into Wildfire Smoke Plumes to Study Extreme Weather

Why it matters locally: While Missouri experiences wildfires, especially in its forested areas, the direct impact of pyrocumulonimbus clouds within the state is less frequent compared to western states. However, the research into these extreme weather events could still inform wildfire management and air quality monitoring by agencies like the St. Louis Fire Department and Kansas City Fire Department, particularly concerning smoke drift from out-of-state fires.

Scientists are conducting airborne research flights into the smoke plumes of large wildfires to study extreme storm clouds. These missions focus on pyrocumulonimbus clouds, known as 'pyroCbs,' which develop over intense blazes and resemble volcanic eruptions. Researchers on these flights collect data directly from within the smoke and ash of the fire-generated storms. They observe how wildfires create their own weather systems, a phenomenon that has become more frequent with increasing wildfire intensity globally. Specific equipment aboard the research aircraft records atmospheric conditions inside the pyroCbs. This includes temperature, humidity, wind speed, and the composition of the smoke and aerosols. The data helps scientists understand the mechanisms behind the formation and behavior of these powerful clouds. The flights involve navigating through turbulent conditions and dense smoke. Pilots trained for such environments guide the aircraft, allowing scientists to deploy sensors and gather samples directly from the cloud systems. This direct observation provides information that ground-based instruments or satellite imagery cannot capture. Scientists expect the collected data to improve models that predict fire behavior and associated weather events. Understanding pyroCbs could also contribute to more accurate climate projections, as these clouds can inject smoke and aerosols high into the atmosphere, affecting regional and global weather patterns.