15:83
فَأَخَذَتْهُمُ ٱلصَّيْحَةُ مُصْبِحِينَ
fa-akhadhathumu l-ṣayḥatu muṣ'biḥīna
the blast overwhelmed them early in the morning.
But As-Saihah (torment - awful cry) overtook them in the early morning (of the fourth day of their promised punishment days).