Niue Weather Bulletin issued from NWFC Nadi Sep 212248 UTC. Situation: An active trough of low pressure with associated cloud and showers remains slow moving over Niue. Forecast to midnight tomorrow for Niue: Occasional showers, heavy at times and isolated thunderstorms. Moderate to fresh east to southeast winds. Rough seas. Further outlook: Occasional showers and possible thunderstorms. Marine Weather Bulletin for Niue Forecast to midnight tomorrow for all Niue water: East to southeast winds 15 to 20 knots. Moderate to rough seas. Moderate southerly swells. Further outlook: Southeast winds 15 to 20 knots. Moderate to rough seas. Moderate southerly swells.