FPTV40 NFFN 101400 Tuvalu Weather Bulletin issued from NWFC Nadi Mar 101448 UTC. A STRONG WIND WARNING IS NOW IN FORCE FOR BOTH TUVALU LAND AND WATERS. Situation: A trough of low pressure with associated cloud and rain remains slow moving over Tuvalu. Forecast to midnight tonight for Tuvalu: Over land: Moderate to fresh west to southwest winds, becoming strong from later today. Over waters: West to southwest winds, 20 to 25 knots, gusting upto 35 knots in squalls. Periods of rain, heavy at times and squally thunderstorms. Rough to very rough seas. Further outlook: Further rain. For Funafuti: Periods of rain, heavy at times and squally thunderstorms.. Further outlook: Further rain.