The NEB, SEB, and the two Polar Regions are easy targets and should show up in any telescope, perhaps even high-powered binoculars if mounted on a tripod. Most of the other belts are more difficult to see, and require steady seeing and good optics. Note that even with the excellent seeing and excellent optics when this sketch was made, the EB was not visible. A huge storm which has been raging as long as humans have had telescopes to look at Jupiter, it changes color and location over the years. Festoons are another commonly observed feature.
White ovals can be either cyclonic or anticyclonic storms.
On a night of steady seeing, an amazing amount of detail can be seen, and what initially appeared to be a split in a band can turn out to be a complex of white spots of all sizes. ALPO and other observing groups track these white ovals, and issue alerts as they appear, disappear and merge, and have reported an unusual amount of activity in the last few years.