開啟輔助訪問
 找回密碼
 立即加入

93W→96W 風力達標 JMA:溫氣/美軍:副熱帶風暴

簽到天數: 588 天

[LV.9]以壇為家II

Meow|2017-7-29 22:41 | 顯示全部樓層
本帖最後由 Meow 於 2017-7-29 22:43 編輯

JTWC另編同時,JMA判定轉化溫帶氣旋並對北側發佈GW。
螢幕快照 2017-07-29 22.35.58.png
GALE WARNING.
EASTERLY TO SOUTHEASTERLY WINDS 30 TO 35 KNOTS PREVAILING OVER WATERS
BOUNDED BY 40N 160E 45N 165E 37N 178E 32N 170E 40N 160E.
...
LOW 1010 HPA AT 33N 170E NW 15 KT.
回復

使用道具 舉報

簽到天數: 3279 天

[LV.Master]伴壇終老

t02436|2017-7-29 22:50 | 顯示全部樓層
JTWC評級Low
(2) AN AREA OF CONVECTION (INVEST 96W) HAS PERSISTED NEAR
32.7N 170.6E, APPROXIMATELY 677 NM NORTHWEST OF MIDWAY ATOLL.
ANIMATED INFRARED IMAGERY SHOWS WEAK AND DISORGANIZED CONVECTION
ASSOCIATED WITH A WELL DEFINED LOW LEVEL CIRCULATION CENTER (LLCC)
OBSERVED IN A 291002Z METOP-B ASCAT IMAGE. THE ASCAT IMAGE SHOWS A
REGION OF 30 TO 35 KNOT WINDS TO THE NORTHEAST OF THE LLCC. THE
SYSTEM IS CLASSIFIED AS SUBTROPICAL DUE TO THE PRESENCE OF AN UPPER-
LEVEL TROUGH OVERHEAD EXTENDING FROM A LOW PRESSURE SYSTEM TO THE
NORTHWEST. UPPER-LEVEL ANALYSIS REVEALS THAT THE SYSTEM IS LOCATED
IN A VERY HIGH SHEAR ENVIRONMENT (40-50 KNOT). MODELS INDICATE THAT
THE SYSTEM WILL MOVE IN A NORTHERLY DIRECTION OVER THE 48-72HRS AND
NOT TRANSITION INTO A TROPICAL SYSTEM. MAXIMUM SUSTAINED SURFACE
WINDS ARE ESTIMATED AT 30 TO 35 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 IS LOW.

abpwsair.jpg

點評

JTWC 取消評級,然後又速速撤編了...  發表於 2017-7-30 15:05
風切高達50kts.緯度已過30度.發展機會never(0%)  發表於 2017-7-30 06:43
回復

使用道具 舉報

12
快速回覆
您需要登錄後才可以回帖 登錄 | 立即加入

本版積分規則

本平台僅供學術討論之用,預報應以氣象局為準

威普網站虛擬主機贊助公司

臺灣第一個天氣類型社群平台 即時天氣資訊、精準颱風動態

線上客服
FB傳送訊息
廣告行銷
精準行銷 物超所值
官方粉專
發佈 快速回復 返回頂部 返回列表