Ka-tua-la-hu screeched and groaned, and another roiling mass of tentacles appeared from the upper clouds.

I asked, "Did you suspect that there would be metal-eating organisms in the upper clouds?"

The aliens, perhaps twenty kilometers each in diameter, were through the upper clouds.

The upper clouds, located in the pressure range 0.6-0.9 bar, are made of ammonia ice.

The storm trailed down into the atmosphere, but the big central section was clear of the upper clouds by at least a hundred klicks.

Low and high-skimming the wave-crests, plunging through the magenta wisps of the upper clouds.

Typical temperatures in its upper clouds are about -240 C, because it is so far from the warming rays of the Sun.

One said that a firebolt had pierced the upper clouds, trailing thunder.

We would be measuring the temperatures in the upper clouds and not on the much warmer surface of Earth.

Minutes passed befOre it began to dissipate; its upper clouds lingered for hours.