The daugther of politician Jose Enrique Arraras, she was born in Mayaguez.
She joined Puerto Rico's television as a reporter and her work got the attention of Univision executives, who hired her to anchor their sensationalist/tabloid news show, Primer Impacto, job which she held for many years until moving in 2002 to Telemundo USA to perform as anchor woman in another sensationalist/tabloid news show, Al Rojo Vivo Con Maria Celeste, later shortened to Al Rojo Vivo.
When she was signed to work for Primer Impacto, she had to move permanently to Miami, Florida.
Arraras is also a writer and her investigative works include El Secreto De Selena, where she investigated details of the death of Tejano Music singer Selena Quintanilla, and Crouching Tiger, Hidden Cruelty, where she investigates the way some entertainment entities treat their animals.
She has also interviewed many Presidents and other people of note, including Yolanda Saldivar, the woman accused and convicted of murdering Quintanilla.
She made her acting debut in November of 2002 in two episodes of the soap opera Passions, where she played herself.
On April of 2003, singer Ricky Martin gave Arraras the first exclusive interview he has done in Spanish in two years. On May of that year, she was honored with the revealing of a plaque with her name and hand-prints on it, in Mexico City's Paseo de los Grandes (Walk of the Great Ones)