Hi, Justin (and thanks!)!

This illustration shows Titan's (3) main atmosphere levels.

May apply to tornado outbursts:

In addition to varying plasma conditions within Saturn's magnetosphere, under conditions of high solar wind ram pressure, Titan may be outside the magnetosphere for a portion of its orbit, and thus exposed to a plasma regime quite different from that inside the magnetosphere. That is, when Titan is in the subsolar region of Saturn's magnetosphere, its orbital distance of 20.3 Saturn radii places it near the average location of the nose of the magnetopause. During a period of high solar wind dynamic pressure, the magnetopause could move in to a distance of ~17 Saturn radii (as was the case during the Pioneer 11 flyby); Titan, if near noon Saturn local time, would then be located in the magnetosheath or upstream solar wind.
http://espsun.space.swri.edu/~blewis/inms/interaction_page1.html

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"It is mysterious to me how bodies so far out in the solar system have such mobile/active atmospheres. Especially neptune."

-Justin

These gas giants are like mini suns *g*. In a way, it gives logic to the busy atmosphere found on Titan(active volcanism may help=?). Neptune has Tritan (with it's own cryovolcanic/geyser activity). Must have been quite an impressive nebula that started all this.

Marcia
*Had to think 'out loud'.