In article . com,
Jay Honeck wrote:

Penetrating a line of storms associated with a front is dicey at best,
even with a 396/496. Flying *around* "popcorn" thunderstorms,
however, can be perfectly safe, given decent visibility. It's even
doable without XM in the plane, but the satellite data in the cockpit
makes it MUCH less stressful, mostly because you can tell where the
storms are building, and where they are subsiding. This gives you an
important strategic leg up on the situation that makes it truly easy
to stay out of trouble.

When I was working this past Sunday morning, I watched the sky go from
clear to 8/10ths broken towering cumulus in 15 minutes. You will not out
climb it, you will not out run it. You will get caught in the middle of
it.