FPTV40 NFFN 171500 Tuvalu Weather Bulletin issued from NWFC Nadi Jul 171527 UTC. A STRONG WIND WARNING REMAINS IN FORCE FOR TUVALU WATERS. Situation: A trough of low pressure with associated cloud and showers continues to affect Tuvalu. Forecast to midnight tonight for Tuvalu: Over Waters: Southeast winds 20 to 25 knots. Over Land: Moderate to fresh southeast winds, gusty at times. Rough seas. Occasional showers and few thunderstorms with heavy falls. Further outlook: Cloudy periods with some showers and isolated thunderstorms. For Funafuti: Occasional showers and few thunderstorms with heavy falls. Further outlook: Cloudy periods with some showers and isolated thunderstorms.