In the United States, sky gazers may be most familiar with the
very distinct cumulonimbus mammatus. When occurring in cumulonimbus,
mammatus are often indicative of a particularly strong storm or maybe even a
tornadic storm. Due to the intensely sheared environment in which mammatus
form, aviators are strongly cautioned to avoid cumulonimbus with mammatus.
They also attach to the bottom of other types of clouds.
The White Mountains
|camera||Canon EOS DIGITAL REBEL XSi|
|exposure mode||shutter priority|