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發佈時間: 2021-6-7 13:48

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本帖最後由 周子堯@FB 於 2021-6-9 14:36 編輯   基本資料   編號               :91 W 擾動編號日期 :2021 年 06 月 07 日 12 時 撤 ...

dom 發表於 2021-6-9 13:59
JTWC06Z撤銷評級
ABPW10 PGTW 090600
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
SOUTH PACIFIC OCEANS/090600Z-100600ZJUN2021//
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: NONE.//
NNNN
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dom 發表於 2021-6-8 09:04
JTWC00Z評級Low
(1) AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 6.0N
168.0E, APPROXIMATELY 130 NM SOUTH-SOUTHWEST OF KWAJALEIN ISLAND.
ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS A CONSOLIDATING
AREA OF CONVECTION WITH FEEDER BANDS TO THE NORTH AND FLARING
CONVECTION WITH OVERSHOOTING TOPS JUST SOUTH OF A LOW LEVEL
CIRCULATION (LLC). A 071913Z SSMIS 91GHZ MICROWAVE PASS DEPICTS
FRAGMENTED BANDING WRAPPING INTO THE LLC WITH THE AFOREMENTIONED
CONVECTION TO THE SOUTH. INVEST 91W IS IN AN ENVIRONMENT FAVORABLE
FOR TROPICAL DEVELOPMENT WITH GOOD EQUATORWARD OUTFLOW ALOFT, LOW (5-
10KTS) VERTICAL WIND SHEAR (VWS) AND WARM (30-31C) SEA SURFACE
TEMPERATURES (SST). GLOBAL MODELS ARE NOT IN AGREEMENT WITH A
TROPICAL CYCLONE DEVELOPING FROM INVEST 91W, HOWEVER, JTWC WILL
CLOSELY MONITOR FOR POTENTIAL DEVELOPMENT DUE TO A FAVORABLE
APPEARANCE IN SATELLITE ANALYSIS. MAXIMUM SUSTAINED SURFACE WINDS
ARE ESTIMATED AT 13 TO 18 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1009 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
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