11, 2025, to save the homes in this community in Brentwood from the Palisades Fire that started on Jan. 7, 2025. The trail of red clouds dropped over wildfires is known as Phos-Chek. This is a ...

As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling onto trees are common. What is it — and what's in it?

Wildfires raging across the US and Canada recently were so huge they even spread to the sky, creating clouds that only appear above superhot heat sources. So-called ‘fire clouds’ are not ...

The trail of red clouds dropped over wildfires is known as Phos-Chek. This is a brand of long-term fire retardant. It has been used to fight fires since the 1960s, according to AccuWeather.

Pyrocumulus clouds, also known as “fire clouds,” “are plumes of smoke that can form in the wake of large wildfires and make their way high into the sky,” Smokey Bear said in a February ...