Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

Extreme cold could expose residents of several states to conditions like hypothermia and frostbite over the weekend.

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

An arctic blast will send wind chills plummeting below zero through Monday, Tuesday, and Wednesday. Unusually cold air ...

The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

The Los Angeles County Fire Department has provided the following maps of the thousands of structures, primarily homes, that ...