I don't know anyone who is afraid to walk underneath a cumulus cloud because they are afraid it might fall on them. We don't think of clouds even having weight because they are floating. But, clouds are made up of a physical substance, water, and water is quite heavy, so clouds must have weight. We will explain this "paradox" to you if you read on.
there are quit a bit of satellite image you can check, I am not specialist in this to answer your question. (like are they consider connected or in the same “group” of origin? ) But half the planet is likely not possible because of how they are effected by the Earth spinning and drag + advection. ie. it means if you want to cover half the planet, you can only cover either northern or southern hemisphere. The cloud formed on equator area will be spread into 2 direction and then torn apart.
there are quit a bit of satellite image you can check, I am not specialist in this to answer your question. (like are they consider connected or in the same “group” of origin? ) But half the planet is likely not possible because of how they are effected by the Earth spinning and drag + advection. ie. it means if you want to cover half the planet, you can only cover either northern or southern hemisphere. The cloud formed on equator area will be spread into 2 direction and then torn apart.
https://www.scienceabc.com/nature/hurricanes-spin-different-directions-northern-southern-hemispheres-coriolis-effect.html