(So the Sayhah overtook them) This is the piercing sound that came to them when the sun rose, which was accompanied by the city being flipped upside down, and stones of baked clay (As-Sijjil) raining down upon them. The discussion of As-Sijjil in Surah Hud is a sufficient explanation. Allah said:
إِنَّ فِى ذَلِكَ لآيَـتٍ لِلْمُتَوَسِّمِينَ
(Surely, in this are signs for those who see.) meaning that the traces of the destruction of that city are easily visible to any one who ponder about it, whether they look at it with physical eyesight or mental and spiritual insight, as Mujahid said concerning the phrase,
Learn Your Essential Lesson From Sites Ruined by Divine Punishment
In verses 75 and 76: إِنَّ فِي ذَٰلِكَ لَآيَاتٍ لِّلْمُتَوَسِّمِينَ ﴿75﴾ وَإِنَّهَا لَبِسَبِيلٍ مُّقِيمٍ ﴿76﴾ (Surely, in that there are signs for those who read signs. And surely, it [ their city ] is located on the straight road), Allah Ta’ ala has pointed out to the geographical location of such ruined cities which fall on the main road which takes people from Arabia to Syria. Also said with it was that in them there are great signs of the perfect power of Allah Ta’ ala for those who believe and have the necessary hindsight and foresight.
This means that ‘here are the young girls of the city for you to marry’. When Lot saw that, in spite of his opposition, the rogues were rushing upon his guests, he said, ‘For God’s sake! Please don’t dishonour me in the eyes of my guests. If at all you want to do something, here are the daughters of the community. You can marry any of them you like.’
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.