〜とあって

Meaning

Expresses the cause "because it is such a special circumstance, it naturally turns out that way." An explanatory expression stating a result drawn naturally from the preceding situation.

Examples

連休とあって、行楽地はどこも家族連れでにぎわっていた。 Being a holiday weekend, every tourist spot was bustling with families.
久々の優勝がかかった試合とあって、観客席は熱気に包まれた。 With a long-awaited championship on the line, the stands were filled with excitement.
有名店の開店とあって、朝から長い行列ができた。 With a famous restaurant opening, a long line formed from early morning.