Survival Guide: Recognize Which Clouds Mean Danger – Series Part 1



During severe weather outbreaks, conditions can change rapidly and the weather can turn volatile quickly. It is crucial to follow severe weather and tornado-related watches and warnings during episodes of severe storms. Keeping a weather radio nearby, with extra batteries handy, is a must. If you are out on the open road, staying tuned to severe weather alerts and being able to read the clouds for severe weather can help save your life. This week we present a breakdown of ominous-looking clouds and the dangers associated with them.

Cumulonimbus Clouds

Rapid vertical growth in these cauliflower-looking cumulonimbus clouds shows that there is a mature thunderstorm, likely producing heavy rain. Abundant moisture and instability due to cool air aloft and heating at the surface set the stage for cumulonimbus to develop. A lifting mechanism, such as a cold front, can help trigger these clouds to form. Heavy rain, frequent lightning, strong winds and hail can be threats associated with cumulonimbus clouds.

Scud Clouds

Scud clouds may appear to be ominous as they hang vertically below a cumulonimbus cloud. Sometimes, scud clouds are mistaken for funnel clouds. However, these clouds are benign and non-rotating. They often have a ragged appearance that sets them apart from the often smooth funnel clouds.