Peter R. wrote:
I learned long ago that it's better
to stay low when there are thunderboomers around and that's not compatible
with most IFR flight plans.

Interesting observation, given that you are based in the south where haze
is so prevalent.

I seem to have better luck flight planning around the 12-15,000 foot range
in the Northeast US, which gets me above the three-to-six mile haze layer
and often times, above the forming TCUs so that it is easier to spot the
monster thunderstorms.

I agree. I'm in NC and fly primarily between 7k and 10k although 11 and
12k is often the key when jumping crotches. I just can't get up higher
profitably on most trips. Even though that altitude puts me in the
cloud canyons I prefer to see the storms in clear air.

Down low is no fun when the visibility is limited and when it's tough to
gage storm strength. It's one thing to avoid the big rain shafts but
when you can't see the tops, it's hard to tell when you may be under or
too close to a big one that decides to unload on your back (heavy rain,
lightening, hail). Plus up high it tends to be smooth and allows my
precious cargo to sleep. Down low is work. And you have to keep track
of those ground obstructions.

Great write-up! Thanks Mortimer.