noun, feminine/a.lɛʁt am.bœʁ/plural: alertes Amber
amber alert
Calque of English Amber alert, named after Amber Hagerman (1986–1996), a girl who was abducted and killed in Arlington, Texas. In Quebec, Amber (where spelled in all-caps) is given the backronym "Alerte Médiatique : But Enfant Recherché" (lit. "media alert [for] child being sought after").