An Upper St. Clair woman was found dead in a Bridgeville creek after apparently being swept away by floodwaters from powerful storms that dumped nearly 4 inches of rain on parts of western Pennsylvania on Wednesday night.Police in Upper St. Clair say the body of Wendy Abbott, 64, was found in McLaughlin Run Creek in Bridgeville on Thursday morning, 2 miles from where her car was left abandoned.Just moments before she was swept away, she made a desperate call to her mother, leaving a message on the answering machine, as her voice was filled with anxiety and fear, "Mom, please pick up! "Please pick up mom. I'm stuck in the flood!"It's flooding.I'm stuck."Please pick up mom.Please pick up!"Abbott was reported missing by her 95-year-old mother, Dolores Abbott, during the severe flooding, Upper St. Clair police said. Her car was found in the area of McLaughlin Run and Morrow roads in Upper St. Clair.Abbott was reported missing by her 95-year old mother, Dolores Abbott, during the severe flooding, Upper St. Clair police said. Her car was found in the area of McLaughlin Run and Morrow roads in Upper St. Clair.Refresh this page and stay with the WTAE mobile app for updates on this story.The creek was severely flooded with rushing water during Wednesday night's downpour. Dumpsters and a car, along with other debris, were swept into the run and pushed up against a bridge that carries Bower Hill Road over the water.Upper St. Clair township manager Matthew Serakowski says residents placed more than 100 calls for flooding and a state of emergency has been declared, meaning residents will receive assistance from Pennsylvania Emergency Management to receive federal aid through the Federal Emergency Management Agency.Video posted on social media showed cars floating down flooded streets, while swift-water rescue teams in Bridgeville and other areas of Allegheny County took part in at least 66 rescues.(The Associated Press contributed to this article.)