Do any airliners fit stormscopes or equivalent technology? One of their selling points was that lightning was found in turbulent air, heavy rain or not. I liked the one I had way back when. Not as accurate as radar, but it worked.
I have one in a piston single, but it was next to useless *before* XM WX or ADS-B In's FIS-B. Now, I wouldn't pay to get it fixed or removed. Nothing replaces the Mk.1, Mod1 eyeball...