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20E.Patricia 實測猛爆成新一代風王-NHC:185KT

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[LV.9]以壇為家II

2015-10-18 03:22 | 顯示全部樓層
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[LV.9]以壇為家II

劉瑞益@FB|2015-10-20 09:33 | 顯示全部樓層
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[LV.9]以壇為家II

劉瑞益@FB|2015-10-20 16:31 | 顯示全部樓層
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[LV.Master]伴壇終老

t02436|2015-10-20 23:24 | 顯示全部樓層
NHC 15Z升格20E,巔峰上望85節,五天後登陸墨西哥並減弱消散。
000
WTPZ45 KNHC 201457
TCDEP5

TROPICAL DEPRESSION TWENTY-E DISCUSSION NUMBER   1
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP202015
1000 AM CDT TUE OCT 20 2015

Satellite data indicate that deep convection associated with the
area of low pressure a few hundred miles southeast of Puerto
Escondido, Mexico, has become sufficiently well organized to
designate the system as a tropical depression.  The circulation of
the low has also become better defined according to an overnight
ASCAT pass, though it could still be somewhat elongated to the
south.  The depression's cloud pattern is characterized by
interlocking convective bands, with the estimated low-level center
underneath the eastward tip of the western band.  A Dvorak intensity
estimate of T2.0 from TAFB is used to set the initial intensity at
30 kt.

Since the center location uncertainty has been high until
very recently, the initial motion estimate is a rather uncertain
280/02.  The track guidance is in very good agreement that a
mid-level ridge over the Gulf of Mexico with an east-northeast to
west-northwest orientation should impart a west-southwestward motion
for about 24 hours.  A turn toward the west and west-northwest
with some increase in forward speed is forecast by 36 hours once the
ridge over the Gulf of Mexico shifts eastward.  When the cyclone
reaches the western edge of ridge around 72 hours, it should turn
northwestward.  The evolution of a deep longwave trough over the
southwestern U.S. and northwestern Mexico is of critical
importance to the track forecast after that time as the cyclone
nears the southwestern coast of Mexico. There are differences
between the models regarding the timing and strength of a shortwave
trough dropping into the southwestern U. S. during this period,
resulting in increasing spread of the track guidance after 72
hours.  The track forecast is close to the multi-model consensus,
but it is a little west of the GFS and ECMWF solutions beyond day 3.

The large-scale environment around the cyclone is forecast to be
quite conducive for intensification during the next few days, with
SSTs to above 30 deg C, a rich moisture supply in the lower to
middle troposphere, and very light vertical shear.  The main
limiting factor should be how quickly the cyclone develops enough
inner-core organization to potentially rapidly intensify.  Prior to
landfall, an increase in southwesterly vertical shear and drier air
associated with the mid-to upper-level trough to the northwest could
result in weakening, with a peak intensity mostly likely between the
72- and 96-hour points.  The NHC intensity forecast is above the
multi-model consensus and in best agreement with the LGEM output
until the forecast landfall.  Dissipation is shown after 96 hours,
though it could occur sooner over the high terrain of the Sierra
Madre Occidental.


FORECAST POSITIONS AND MAX WINDS

INIT  20/1500Z 13.3N  94.4W   30 KT  35 MPH
12H  21/0000Z 13.0N  95.5W   35 KT  40 MPH
24H  21/1200Z 12.8N  97.0W   45 KT  50 MPH
36H  22/0000Z 12.9N  98.9W   55 KT  65 MPH
48H  22/1200Z 13.9N 101.0W   70 KT  80 MPH
72H  23/1200Z 16.3N 103.7W   85 KT 100 MPH
96H  24/1200Z 20.5N 104.4W   50 KT  60 MPH...INLAND
120H  25/1200Z...DISSIPATED

$$
Forecaster Kimberlain







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[LV.9]以壇為家II

劉瑞益@FB|2015-10-21 12:49 | 顯示全部樓層
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[LV.Master]伴壇終老

甜心|2015-10-22 16:17 | 顯示全部樓層
:o若是在我們這邊體型這麼巨大的熱帶風暴(輕度颱風)氣象局應該會給他180公里暴風圈半徑,不過這樣驚人的幼兒期體位對它而言可能會弊多於利強度要到C2它可能需要很長一段整合時間。

點評

是喔,現在它強度多少了  發表於 2015-10-23 12:38
是喔,現在它強度多少了  發表於 2015-10-23 12:37
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[LV.3]偶爾看看II

ktf|2015-10-22 22:15 | 顯示全部樓層


極為優異的水氣狀態,一副大爆發態勢,這種驚人的水氣不多見

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[LV.8]以壇為家I

krichard2011|2015-10-22 22:17 | 顯示全部樓層
這隻看起來也不得了
悄悄的風眼已經快開了 發展相當快速
高層也開始清了 且是個針眼的樣子
疑似有RI的現象發生
稍早強度已經提升至 80 KT

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