In the California lowlands where I live, they definitely do form in the winter. In fact, you're far more likely to see them - and lightning, hail, the very occasional tornado, etc that they spawn - in the winter than in the summer. read more
In the California lowlands where I live, they definitely do form in the winter. In fact, you’re far more likely to see them - and lightning, hail, the very occasional tornado, etc that they spawn - in the winter than in the summer. read more
Regular clouds have low amount of moisture. The cloud particles scatter the light equally, therefore they appear white. As the moisture in a cloud increases, it's light scattering ability decreases. This causes them to look darker in shade. read more
Cumulonimbus, from the Latin cumulus ("heaped") and nimbus ("rainstorm"), is a dense, towering vertical cloud, forming from water vapor carried by powerful upward air currents. If observed during a storm, these clouds may be referred to as thunderheads. Cumulonimbus can form alone, in clusters, or along cold front squall lines. read more