FATO40 NFFN 041500 TONGA AREA FORECAST VALID FROM MAY 041700 TO 050800 UTC 2026. SITUATION: A TROUGH OF LOW PRESSURE WITH CLOUD AND SHOWERS AFFECTS TONGA. WINDS: [SPEED IN KNOTS] FL240 32030M18 FL180 26020M06 FL140 28015M01 FL100 24015 FL070 16020 FL050 15025 FL020 10025 SIGWX: OCNL SHRA & ISOL TSRA/+SHRA. EXPECT STRONG AND GUSTY WINDS AT THE SURFACE. VIS: 40KM, 10KM-15KM IN -SHRA, 5000M-10KM IN SHRA, LESS THAN 5000M IN TSRA/+SHRA. CLOUD: FEW-SCT CU 015-030, TOPS 100-180, BKN IN SIGWX. FEW-SCT CB 018-025, TOPS 380-420. SCT-BKN SC 030-050 IN SIGWX. SCT-BKN ACAS ABV FL100, OVC IN SIGWX. TAF NFTV 041125Z 0412/0512 12012KT 9999 SCT015 BKN040 OVC100= TAF NFTL 032315Z 0400/0412 08014KT 9999 SCT017 BKN100 PROB40 TEMPO 0400/0412 09015G25KT PROB30 TEMPO 0402/0412 5000 TSRA BKN016 FEW018CB= TAF NFTF 041121Z 0412/0512 12009KT 9999 FEW008 SCT015 BKN100 TEMPO 0412/0506 14015G25KT=