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Jupiter.s North Equatorial Belt (NEB) comma a dark reddish-brown band just to the north of the Equatorial Zone comma regularly varies in width and color. The current NEB cycle is more extreme than any previous transition since 1928 comma and it includes rarely seen convective eruptions at an active longitude moving around the planet. The current convective activity is a stealth superstorm comma because it shares the long-term activity of a major superstorm comma but it does not reach the same high altitudes. This newly recognized transitional case between the sporadic minor convective storms common in Jupiter.s belts (but never detected on Saturn) comma and the major convective superstorms sending plumes up to high altitudes in the atmospheres of both gas giants comma probes differences in convective styles related to the deep water abundance. HST observations of the stealth superstorm system would define 3D cloud structure by mapping deep water clouds and constraining plume heights. Observations require 200-km scale resolution (inaccessible to ground-based visible wavelength imaging) to distinguish anisotropic cloud structure in the stealth superstorm region and near the Juno spacecraft track. Juno.s microwave observations have revealed that spectacular convective storms in 2016 (observed at cloud tops in the visible and infrared) comma are connected to changes in ammonia and temperature at great depth comma both above and below the water-cloud layers. Data from Juno collected in 2021 and 2022 will test whether deep changes also accompany the current NEB cycle comma with its newly recognized stealth superstorm activity.