lindi -lid- gismu

x1 is lightning/electrical arc/thunderbolt striking at/extending to x2 from x3.

Also thunder (= lidysna). See also dikca.

In notes:

dikca
x1 is electricity [electric charge or current] in/on x2 of polarity/quantity x3 (def. negative).
lidvilti'a
t1=v1 is a thunderstorm at place/region t2
lidvru
s1 is thunderous to s2.