Wildfire weather: How large blazes can cause firenadoes, thunderstorms

Because severe wildfires generate large amounts of energy in the form of heat, they can create their own weather. When wildfires are intense, air tends to move much more violently and produce strong ... Read More

A pollution paradox: Wildfires in the western United States may improve air quality

Climate change is driving more frequent and more intense wildfires around the world, including in the United States. These huge blazes cause a range of problems that affect health, the environment, ... Read More

Washington wildfire creates towering "pyrocumulus" clouds over the Inland Northwest

A fast-growing fire cast a long shadow across the Inland Northwest. Framed by the setting sun, a 4 News Now viewer in Colbert captured the gigantic plume ... Read More

How a Utah wildfire created its own tornado

The Deer Creek Fire created a pyro-vortex east of Moab, Utah, as it burned in mid-July. Credit: Jason Kirks/BLM Around 12:40 p.m. on July 12, firefighters on the Deer Creek Fire, east of Moab, Utah, ... Read More

Lightning to spark more wildfires in western US in coming decades

Lightning will ignite more wildfires in the western United States in the coming decades as temperatures increase due to climate change, according to a new study published in AGU's journal Earth's ... Read More

Changes on the way for wildfire alerts. What to know, when to evacuate

In Ventura County, alerts about fast-moving wildfires may show up a little quicker this fall. Here's why. Read More