Tornadic supercell thunderstorm (right) with mammatus clouds (left). Mammatus clouds may be a sign that a tornado is developing. Supercell thunderstorms are severe long-lived storms within which the wind speed and direction changes with height. This produces a strong rotating updraft of warm air (a mesocyclone) as well as a separate downdraft of cold air. Around a third of supercells produce tornadoes and are termed tornadic. Photographed near Bowdle,South Dakota,USA,on 22 May 2010 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hill, Roger |
Bildgröße: | 5138 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |