TONGA AREA FORECAST VALID FROM FEBRUARY 190000 TO 191200 UTC 2025. SITUATION: A TROUGH OF LOW PRESSURE WITH CLOUD AND SHOWERS AFFECTS THE NORTHERN PARTS OF TONGA. MEANWHILE, A FRESH TO STRONG EASTERLY WIND FLOW PREVAILS OVER THE AREA AT THE SURFACE. WINDS: [SPEED IN KNOTS] FL240 11020M12 FL180 12010M02 FL140 11010P05 FL100 09010 FL070 07005 FL050 09015 FL020 10020 SIGWX: SCT SHRA & RISK ISOL TSRA/+SHRA ESP ABT & N OF NFTV. ELSEWHERE, ISOL SHRA. EXPECT 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. RISK ISOL CB 015-025, TOPS 340-480. SCT-BKN SC 030-050. SCT-BKN ACAS ABV FL100, OVC IN SIGWX. TAF NFTV 182208Z 1900/1924 12012KT 9999 -SHRA SCT016 SCT040 BKN100 PROB40 TEMPO 1900/1906 5000 TSRA BKN015 FEW017CB PROB40 TEMPO 1906/1924 12015G25KT= TAF NFTL 182206Z 1900/1912 11015KT 9999 SCT016 BKN100 PROB40 TEMPO 1900/1912 10018G28KT= TAF NFTF 182213Z 1900/1924 10012KT 9999 -SHRA SCT016 BKN045 PROB40 TEMPO 1906/1918 11015G25KT PROB30 TEMPO 1912/1924 5000 SHRA BKN015=