After a week dotted with storms and power outages, New Jersey is in for hot weather, the threat of severe thunderstorms and damaging winds, and possible rip currents along the Shore this weekend, forecasters say. Saturday will be cloudy and humid, and some showers and thunderstorms are expected to arrive from the west at night, the National Weather Service said. There’s potential for isolated to scattered severe thunderstorms Saturday, but the “greater chance” for that is Sunday evening, the agency said. Heat and humidity will spike Sunday before a cold front moves in, with a heat advisory in …