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10L.Jerry 巔峰曾達C2 逐步消亡

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    組圖打開中,請稍候......
發佈時間: 2019-9-16 02:08

正文摘要:

  二級颶風   編號:10 L 名稱:Jerry   基本資料   擾動編號日期:2019 年 09 月 16 日 01 時 命名日期  :2019 年 09 月 18 日 17 時 撤編日期  :2019 年 09 月 27 ...

t02436 發表於 2019-9-17 23:52
15Z升格10L,上望80節未封頂,移向加勒比海。
321
WTNT45 KNHC 171447
TCDAT5

Tropical Depression Ten Discussion Number   1
NWS National Hurricane Center Miami FL       AL102019
1100 AM AST Tue Sep 17 2019

Deep convection associated with the area of low pressure over the
central Atlantic has become more persistent and better organized
this morning.  Data T-numbers from both SAB and TAFB are 2.0 on the
Dvorak scale, therefore advisories are being initiated on a tropical
depression.  The initial intensity is set at 30 kt, in line with the
satellite estimates.  The depression is forecast to move over
gradually increasing sea surface temperatures within a favorable
upper-level environment.  The only negative factor for
intensification appears to be some nearby dry air, but with low
shear conditions expected, so steady strengthening is forecast
during the next several days.  The NHC forecast calls for the
depression to become a tropical storm later today, and attain
hurricane status within 72 hours. The NHC intensity forecast is in
good agreement with the SHIPS and LGEM statistical models.

Since the depression is still in the development phase, the initial
motion is a somewhat uncertain 295/10 kt.  A strong deep-layer
ridge to the north of the cyclone should steer the depression
generally west-northwestward at a faster forward speed during the
next few days.  The track guidance is in relatively good agreement
through 72 hours, and brings the cyclone near the northern Leeward
Islands in about 3 days.  By late in the period, the cyclone is
expected to reach the western periphery of the ridge, and there is
increasing spread among the guidance.  The global model ensemble
means are along the right side of the envelope while the HWRF and
UKMET are along the left side.  The NHC track lies close the
consensus aids, which is also in good agreement with the latest
ECMWF.

Interests in the northern Leeward Islands should monitor the
progress of this system.

FORECAST POSITIONS AND MAX WINDS

INIT  17/1500Z 12.9N  44.9W   30 KT  35 MPH
12H  18/0000Z 13.8N  46.1W   35 KT  40 MPH
24H  18/1200Z 14.7N  47.9W   40 KT  45 MPH
36H  19/0000Z 15.5N  50.2W   45 KT  50 MPH
48H  19/1200Z 16.3N  52.9W   55 KT  65 MPH
72H  20/1200Z 18.2N  59.2W   65 KT  75 MPH
96H  21/1200Z 20.2N  64.7W   75 KT  85 MPH
120H  22/1200Z 22.5N  69.0W   80 KT  90 MPH

$$
Forecaster Brown

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