FATO40 NFFN 121600 TONGA AREA FORECAST VALID FROM DECEMBER 121700 TO 130800 UTC 2025. SITUATION: A TROUGH OF LOW PRESSURE AFFECTS TONGA. WINDS: [SPEED IN KNOTS] FL240 27040M17 FL180 26025M06 FL140 27010P01 FL100 VRB05 FL070 01005 FL050 36005 FL020 04010 SIGWX: OCNL SHRA/RA/+SHRA/+RA & SCT TSRA. VIS: 40KM, 10KM-15KM IN -SHRA/-RA, 5000M-10KM IN SHRA/RA, LESS THAN 5000M IN TSRA/+SHRA/+RA. CLOUD: FEW-SCT ST 006-012. FEW-SCT CU 015-030, TOPS 100-160, BKN IN SIGWX. FEW-SCT CB 015-025, TOPS 350-440. SCT-BKN SC 030-050. SCT-BKN ACAS ABV FL100, OVC IN SIGWX. TAF NFTV 121106Z 1212/1312 06007KT 9999 FEW006 SCT016 BKN100 PROB40 TEMPO 1212/1312 5000 TSRA BKN015 FEW017CB= TAF NFTL 112314Z 1200/1212 01007KT 9999 SCT017 BKN100 PROB40 TEMPO 1202/1212 5000 TSRA BKN015 FEW017CB= TAF NFTF 121105Z 1212/1312 09005KT 9999 SCT015 BKN040 PROB40 TEMPO 1212/1312 5000 TSRA BKN015 FEW018CB=