LOW - 塔希提岛东南热带扰动01F(99P) - 21.4S 145.6W - JTWC定为副热带风暴

pocketbox

ABPW10 PGTW 050300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH
PACIFIC OCEANS REISSUED/050300Z-050600ZDEC2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/050151ZDEC2025//
AMPN/REF A IS A TROPICAL CYCLONE WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED NEAR
12.2N 130.1E IS NOW LOCATED NEAR 11.4N 129.0E, APPROXIMATELY 323 NM
EAST-SOUTHEAST OF LEGAZPI. ANIMATED MULTISPECTRAL SATELLITE IMAGERY
(MSI) DEPICTS A POORLY DEFINED LOW LEVEL CIRCULATION CENTER (LLCC)
WITH WEAK CONVECTION ASSOCIATED WITH THE LLCC. ENVIRONMENTAL ANALYSIS
REVEALS FAVORABLE CONDITIONS FOR DEVELOPMENT WITH LOW VERTICAL WIND
SHEAR (15 KNOTS OR LESS), GOOD UPPER-LEVEL POLEWARD OUTFLOW ALOFT,
AND WARM SEA SURFACE TEMPERATURES (27-28 C). GLOBAL MODELS ARE IN
FAIR AGREEMENT THAT INVEST 93W WILL SLOWLY CONSOLIDATE AS IT TRACKS
TOWARD THE CENTRAL PHILIPPINES. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED
TO BE NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS MEDIUM.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 05DEC25 0000Z, TROPICAL CYCLONE 06P (SIX) WAS LOCATED NEAR
13.9S 149.7W, APPROXIMATELY 216 NM NORTH OF PAPEETE, TAHITI, AND HAD
TRACKED SOUTHEASTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. MAXIMUM
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS.
SEE REF A (WTPS31 PGTW 050300) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 90P) PREVIOUSLY LOCATED NEAR
12.5S 152.8W IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. SEE PARA.
2.A.(1) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO WARNING
STATUS AND REMOVED 99P FROM PARA 2.C.(1) AS SYSTEM WAS DEEMED
SUBTROPICAL.//
NNNN

ygsj24

2026 - 011 - SHA9
持续时长：54 小时
最大风速：45 节
最低气压：993 百帕
ACE：0

时刻（UTC）	所在纬度	所在经度	风速（节）	气压（百帕）	强度等级
2025/12/02 18:00	17.1S	150.4W	30	1002	SD
2025/12/03 00:00	17.4S	149.6W	30	1002	SD
2025/12/03 06:00	18.1S	148.2W	30	1000	SD
2025/12/03 12:00	19.0S	147.0W	35	998	SS
2025/12/03 18:00	20.0S	146.9W	40	998	SS
2025/12/04 00:00	20.9S	146.5W	40	995	SS
2025/12/04 06:00	21.4S	145.5W	45	996	SS
2025/12/04 12:00	21.6S	144.6W	45	993	SS
2025/12/04 18:00	23.4S	143.8W	45	995	SS
2025/12/05 00:00	25.0S	143.3W	40	996	SS