천둥 쳐요.
Cheon-dung cheo-yo
Thunder strikes.
Simple verb
천둥번개가 치고 있어서 무서워요.
Cheon-dung-beon-gae-ga chi-go i-sseo-seo mu-seo-wo-yo
Thunder and lightning are striking, it's scary.
무섭다 = scary, honest reaction
번개가 번쩍번쩍, 천둥이 우르르 울리는데 심장 쫄깃하네!
Beon-gae-ga beon-jjeok-beon-jjeok, cheon-dung-i u-reu-reu ul-li-neun-de sim-jang jjol-git-ha-ne!
Lightning flashing flash-flash, thunder rumbling boom-boom, my heart is clenched tight!
번쩍번쩍/우르르 = lightning/thunder onomatopoeia; 쫄깃하다 = tensely gripped, slang
More Korean Weather Phrases