雷 means thunder and is a JLPT N1 kanji. It has 13 strokes and uses the rain radical (雨).
Stroke order · 13 strokes
On'yomi (音読み)
ライ
Kun'yomi (訓読み)
かみなり、いかずち、いかづち
Radical
雨 · rain
Strokes
13
How to remember 雷
Lightning under the rain (雨) over the rice field (田) — a thunderclap! 雷門 — that famous red lantern gate in Asakusa; impossible to leave without taking a photo.