FATO40 NFFN 231500 TONGA AREA FORECAST VALID FROM AUGUST 231700 TO 240800 UTC 2026. SITUATION: A FRESH TO STRONG SOUTHEASTERLY WIND FLOW PREVAILS OVER THE GROUP AT THE SURFACE. WINDS: [SPEED IN KNOTS] FL240 25050M14 FL180 25035M07 FL140 24010P02 FL100 25010 FL070 11015 FL050 10015 FL020 11020 SIGWX: SCT RA ABT THE NORTHERN AND CENTRAL PARTS. EXPECT STRONG GUSTY WINDS AT THE SURFACE. VIS: 40KM, 10KM-15KM IN -RA, 5000M-10KM IN RA. CLOUD: SCT-BKN ST 007-013 IN SIGWX. FEW-SCT CU 015-030, TOPS 100-180, BKN IN SIGWX. SCT-BKN SC 030-050. SCT-BKN ACAS ABV FL100 IN SIGWX. TAF NFTV 231110Z 2312/2412 13009KT 9999 FEW009 SCT016 PROB40 TEMPO 2312/2318 5000 RA SCT008 BKN015 PROB30 TEMPO 2312/2406 13015G25KT= TAF NFTL 222330Z 2300/2312 13015KT 9999 SCT016 BKN100 PROB30 TEMPO 2300/2306 5000 RA SCT008 BKN015= TAF NFTF 231107Z 2312/2412 12009KT 9999 FEW020=