A strikefinder, as I understand it, tells where lightning is. I prefer to
know where it's going to be. [...] the first strike has to be somewhere.


One infers where it's going to be from where it's been. I suspect (but don't
know since I haven't used it) that a strikefinder also shows the little sparks
that aren't full lightning strokes which may occur before a storm fully
develops. So, you would get some advance warning. But the only device that
tells the future is transparant and spherical.


What would I prefer? I don't really know what's available. RADAR would be
nice.


Radar only shows rain (and such), not turbulence. You can get heavy rain in
smooth air, and wing-wrenching turbulence in clear air. Radar is good info,
but again requires interpretation and active management (you need to tilt up
and down to see stuff above and below).

Jose


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