PTRH 58.a:45[2] :מה נטיל אוירא דהן סבא‏ : how heavy (i.e. cloudy) is the weather of that old man
See the entire entry for naṭṭīl adj. heavy, slow-moving

PTRH 58.a:45[2] :והוה אוירא מעונן‏ : the sky was cloudy †
See the entire entry for ˁnn vb. D to be cloudy