More than 10,000 customers across North and South Carolina were without power Saturday as the remnants of Hurricane Isaias brought heavy rain and gusty winds to the region, according to utility outage maps. Duke Energy reported outages across the Carolinas, including 1,327 customers in Buncombe County, 1,097 in Jackson County and 913 in Macon County as of Saturday evening. The Asheville Fire Department separately reported about 4,000 people without power in the city’s Grove Park and Haw Creek areas. Duke said crews were assessing damage and working to restore service, and that workers from the coast were being brought to Asheville. Western North Carolina counties including Buncombe, Jackson and Macon were under flash-flood watches. The National Weather Service warned that heavy rain could cause creeks and streams to rise, flood low-lying areas and overwhelm roads. Rainfall totals of 5 to 6 inches were possible in some places along the Blue Ridge Escarpment. Ashe and Watauga counties were also under flood watches through Sunday evening. North Carolina Emergency Management sent a swiftwater rescue team from Mooresville to western North Carolina and deployed 12 people to Yancey County to prepare for potential flooding and other life-safety emergencies. Yancey County’s flash-flood watch was in effect through Sunday afternoon. The storm also brought the risk of damaging wind. Forecasters warned that gusts could topple tree limbs and power lines, particularly in higher elevations. In Ashe and Watauga counties, winds could gust up to 55 mph; gusts up to 46 mph were forecast in other parts of the region. Residents should treat downed or sagging power lines as energized and dangerous, Duke Energy said. The utility advised people to stay clear and report hazards to the company or local emergency services. The timing of power restoration for customers in the Charlotte area was not immediately known.