96P

老農民版夜神月 · 2021-4-24 05:42

  基本資料
編號             ：96 P
擾動編號日期：2021 年 04 月 24 日 05 時
撤編日期       ：2021 年 04 月 26 日 08 時
96P.INVEST.15kts.1007mb.28S.142W 20210423.2100.goes-17.vis.2km.96P.INVEST.15kts.1007mb.28S.142W.pc.jpg

20210423.2100.goes-17.vis.2km.96P.INVEST.15kts.1007mb.28S.142W.pc.jpg

老農民版夜神月 · 2021-4-24 08:09

編擾之後，JTWC立刻評級Low

(1) AN AREA OF CONVECTION (INVEST 96P) HAS PERSISTED NEAR
28.4S 142.2W, APPROXIMATELY 730 NM SOUTHEAST OF PAPEETE, FRENCH
POLYNESIA. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL
STORM/DEPRESSION, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL
AND MID-LATITUDE CYCLONE FEATURES. A RECENT 231856 ASCAT-B PASS
REVEALS PEAK SUSTAINED SURFACE WINDS ESTIMATED AT 40 KNOTS. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY DEPICTS A BROAD ASYMMETRIC
CIRCULATION WITH FLARING CONVECTION TO THE EAST UNDER AN UPPER LEVEL
COLD CORE LOW. UPPER LEVEL ANALYSIS INDICATES A MARGINALLY FAVORABLE
ENVIRONMENT WITH LOW (10-15 KNOT) VERTICAL WIND SHEAR AND MODERATE
POLEWARD OUTFLOW ALOFT. ADDITIONALLY MODERATE (27-28 CELSIUS) SEA
SURFACE TEMPERATURES ARE NOT HIGHLY CONDUCIVE FOR TROPICAL
TRANSITION. GLOBAL MODELS SHOW A GENERAL SOUTHWARD TRACK WITH
MINIMAL INTENSIFICATION OVER THE NEXT 36-48 HOURS. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 35 TO 40 KNOTS. MINIMUM SEA
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. FOR HAZARDS AND
WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS
AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST
AUTHORITY. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.

20210423.2340.goes-17.vis.2km.96P.INVEST.35kts.1006mb.28.4S.142.2W.pc.jpg

dom · 2021-4-24 08:46

本帖最後由 dom 於 2021-4-25 19:34 編輯

JTWC00Z將其定性為副熱帶氣旋，定強35節

96P INVEST 210425 0000 30.6S 142.5W SHEM 35 996

dom · 2021-4-25 19:36

JTWC06Z降格副熱帶低氣壓，逐漸南下

96P INVEST 210425 0600 30.9S 142.3W SHEM 30 1001

老農民版夜神月 · 2021-4-26 03:38

本帖最後由老農民版夜神月於 2021-4-26 03:41 編輯

JTWC1830Z取消評級

ABPW10 PGTW 251830
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/251830Z-260600ZAPR2021//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY: NONE.
C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY: NONE.
C. SUBTROPICAL SYSTEM SUMMARY:
(1) THE AREA OF CONVECTION (INVEST 96P) PREVIOUSLY LOCATED
NEAR 30.6S 142.5W HAS DISSIPATED AND IS NO LONGER SUSPECT FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE IN THE NEXT 24 HOURS.
(2) NO OTHER SUBTROPICAL SYSTEMS.
3. JUSTIFICATION FOR REISSUE: REMOVED INFO FOR SS 02W DUE TO
EXPIRATION OF FINAL WARNING. DISSIPATED AREA IN PARA 2.C.(1).//
NNNN