MASTIC - The Mastic area is still reeling from the devastation wrought by Superstorm Sandy, but today's nor'easter could wallop the area again. Officials in Mastic were keeping a close eye on water levels today on the worry that high tides, fueled by strong winds and storm surge, could bring floodwaters rushing back into hard-hit neighborhoods. Brookhaven Town Fire Marshal Chris Mehrman says about 700 homes are already flooded out from Sandy in the Village of Mastic. Suffolk County Executive Steve Bellone is urging residents in low-lying areas to stay with family and friends on higher ground, or to go to one of the county's emergency shelters. However, some residents say they're staying put.