וַיַּשְׁקֵ֗ף עַל־פְּנֵ֤י סְדֹם֙ וַעֲמֹרָ֔ה וְעַֽל־כָּל־פְּנֵ֖י אֶ֣רֶץ הַכִּכָּ֑ר וַיַּ֗רְא וְהִנֵּ֤ה עָלָה֙ קִיטֹ֣ר הָאָ֔רֶץ כְּקִיטֹ֖ר הַכִּבְשָֽׁן׃
Und blickte hinab auf Sodom und Gomorrha und das ganze Land des Jordankreises; da sah er Rauch aus der Erde aufsteigen, gleich dem Rauche eines Kalkofens.
Rashi on Genesis
קיטר signifies a column of smoke. old French torche; English torch.
Rashbam on Genesis
וישקף, to see if 10 righteous people had been found there (and the city had survived).
Sforno on Genesis
וישקף, a hostile kind of looking, motivated by their excess wickedness.