pyrocumulus cloud

A pyrocumulus cloud is produced by the intense heating of the air from the surface.

A pyrocumulus cloud can help or hinder a fire.

Pyrocumulus clouds produce lightning for the same reason that it is produced by cumulonimbus clouds.

Firefighters in the Springs were now warned to expect a "red flag" day with gusty winds, thunderstorms, and a growing pyrocumulus cloud.

Pilei can also form above ash clouds and pyrocumulus clouds from erupting volcanoes (see the image to the right).

One researcher has postulated that Gulnare might be the ship in the foreground of a well-known photograph of the explosion's pyrocumulus cloud.

Black rain is not unusual following large fires, and is commonly produced by pyrocumulus clouds during large forest fires.

Apart from forest fires, pyrocumulus clouds can also be produced by volcanic eruptions due to the comparable amounts of hot Volcanic ash formed.

Besides the enormous ash cloud produced by a firestorm, under the right conditions, it can also induce condensation, forming a pyrocumulus cloud or "fire cloud".

These sparked a bushfire that would later generate extensive pyrocumulus clouds, and become the largest, deadliest, and most intense firestorm ever experienced in Australia's post-European history.

That's when they received orders to pull back-the pyrocumulus cloud had collapsed and pushed the fire "much more rapidly into the City than the [city's] fire behavior models had predicted."