FATO40 NFFN 221500 TONGA AREA FORECAST VALID FROM AUGUST 221700 TO 230800 UTC 2026. SITUATION: A TROUGH OF LOW PRESSURE AFFECTS TONGA. WINDS: [SPEED IN KNOTS] FL240 26065M16 FL180 25035M09 FL140 23030P02 FL100 24020 FL070 22010 FL050 12010 FL020 11015 SIGWX: SCT RA/SHRA & ISOL +RA/+SHRA. VIS: 40KM, 10KM-15KM IN -RA/-SHRA, 5000M-10KM IN RA/SHRA, LESS THAN 5000M IN +SHRA/+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 221102Z 2212/2312 14006KT 9999 SCT016 BKN100 PROB40 TEMPO 2300/2306 5000 RA SCT008 BKN015= TAF NFTL 212320Z 2200/2212 09014KT 9999 -RA FEW008 SCT016 BKN100 PROB40 TEMPO 2200/2206 5000 RA SCT008 BKN015= TAF NFTF 221101Z 2212/2312 10008KT 9999 -RA SCT016 OVC100=