OK sea, I seem to recall your inviting me sometime in the not-too-distant past to correct your spelling, punctuation, etc.. Am I wrong? No matter. You will have noted that I've almost always refrained from doing so anyway, with yourself or anyone else, even though such aspects of the English language are about the only thing I'm good for -- and that's because correcting people in these matters is highly unpopular, to say the least.
But there's one correction I'm going to make here because the error is ubiquitous. I see it on forums, in email correspondence, in newspaper articles -- all over the place. It's absolutely not just you. And that error is the use of the word "lightening" -- a verb form meaning becoming less heavy or less dark -- when one actually means "lightning," a noun.
Here's just one suggestion of a way to keep it all straight in your mind, if you even care (doubtful, I realize, and that's understood):
"Linda should lighten up. The sky is lightening now that dawn approaches. But wow, that lightning show during last night's storm was something else, wasn't it?"
And yes, I realize full well that the subject of your thread is far more weighty than how one spells/uses the word "lightning." I just saw an opportunity here and ran with the ball, so to speak.