BAD IDEA
Can I use my cellphone during a thunderstorm?
You can, but it's a dumb idea unless you want to invite lightning to your party.
Using a cellphone during a thunderstorm isn't guaranteed safe, but the risk of lightning striking you because of it is tiny. Still, it's smart to play it cool and avoid that sleek glowing device during lightning shows—because lightning doesn't care about your memes. Stay indoors, keep away from conductive objects, and save the calls for when the storm's done.
Lightning can be deadly. Avoid using wired devices or touching conductive materials during thunderstorms.