Safety / Survival / Army Field Manuals / AFM 3-05.70
Appendix H
Clouds: Foretellers of Weather
Cumulonimbus clouds
Cumulonimbus clouds
Cumulonimbus is the cloud formation resulting from a cumulus cloud building up, extending to great heights, and forming in the shape of an anvil. You can expect a thunderstorm if this cloud is moving in your direction.
All text and images from the U.S. Army Field Manual 3-05.70: Survival.
Appearance of the materials from the U.S. Army Field Manual here does not constitute or represent endorsement by probablyhelpful.com. ProbablyHelpful.com is not responsible for inaccurate or outdated information provided by the U.S. Army Field Manual 3-05.70.