126.96.36.199. Cumulus humilis – fair weather clouds
Cumulus humilis, also known as fair weather clouds are the smallest convective clouds and the first stage in development of convective clouds. They typically form at 500 to 3000 m altitude and have limited vertical development. Cumulus humilis rarely produce any type of precipitation. You can spot these clouds on many summer days; they often form in the late morning or early afternoon as the ground heats up. If they are present early in the day, they may be a sign of an unstable atmosphere.