周子堯@FB

海溫偏低和乾空氣影響，JTWC預計二巔風速達60kt。
預估未來趨向葉門南岸。

CYCLONE (LUBAN)
14.8N/56.0E
INTENSITY T2.5

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周子堯@FB

補些第一次巔峰時的資料~巔峰75kt，達一級颶風

WTIO31 PGTW 100900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 05A (LUBAN) WARNING NR 010   
   02 ACTIVE TROPICAL CYCLONES IN NORTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   100600Z --- NEAR 14.2N 58.9E
     MOVEMENT PAST SIX HOURS - 310 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 025 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            055 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT
                            105 NM SOUTHEAST QUADRANT
                            095 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
                            190 NM SOUTHEAST QUADRANT
                            170 NM SOUTHWEST QUADRANT
                            145 NM NORTHWEST QUADRANT
   REPEAT POSIT: 14.2N 58.9E
    ---