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07L.Gaston 風眼開啟迎來巔峰 置換後開巨眼再登C3

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[LV.9]以壇為家II

2016-8-21 08:19 | 顯示全部樓層
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[LV.9]以壇為家II

劉瑞益@FB|2016-8-21 23:04 | 顯示全部樓層
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[LV.Master]伴壇終老

t02436|2016-8-23 01:05 | 顯示全部樓層
美國海軍在00Z就已經發布TCFA
al902016.20160822035603.gif

NHC展望已經來到100%,12Z評價30節,21Z應該就會升格07L。
2. Satellite imagery this morning suggests that a tropical depression
is forming about 300 miles south-southwest of the southern Cabo
Verde Islands, and if current trends continue, advisories would be
initiated later today.  This system is expected to move westward to
west-northwestward at 15 to 20 mph over the eastern tropical
Atlantic Ocean.
* Formation chance through 48 hours...high...near 100 percent
* Formation chance through 5 days...high...near 100 percent

two_atl_2d2.png

數值蠻看好發展的
90L_gefs_latest.png

90L_intensity_latest.png

20160822.1430.msg-3.ircolor.90L.INVEST.30kts.1006mb.11.4N.26.3W.100pc.jpg
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劉瑞益@FB|2016-8-23 10:07 | 顯示全部樓層
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[LV.9]以壇為家II

劉瑞益@FB|2016-8-23 10:50 | 顯示全部樓層
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[LV.Master]伴壇終老

t02436|2016-8-28 22:46 | 顯示全部樓層
高層風眼終於開出來了,但還是模糊模糊
NHC 15Z正報維持速報評價90節,即將抵達轉向點。
000
WTNT42 KNHC 281436
TCDAT2

HURRICANE GASTON DISCUSSION NUMBER  24
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1100 AM AST SUN AUG 28 2016

The eye was fairly distinct a few hours ago, but recently it has
become slightly cloud-filled and the inner-core convection has
become less symmetrical.  The current intensity is set at 90 kt,
in agreement with a Dvorak estimate from TAFB and objective ADT
values from UW-CIMSS.  Assuming the slight degradation of the inner
core structure to be temporary, a little more strengthening is
expected within the next 12 to 24 hours.  Gaston should remain in a
low to moderate vertical wind shear environment for the next
couple of days, which would allow the hurricane to more or less
maintain its intensity through 36-48 hours.  By 72 hours and beyond,
increasing westerly shear should induce weakening.  The official
intensity forecast is close to the multi-model consensus IVCN.

Steering currents are weak, and the initial motion is a
northwestward drift or 320/4 kt.  Gaston's motion is being
partially blocked by a narrow subtropical ridge, and this scenario
should continue for the next day or so.  The hurricane is expected
to gradually work its way through the ridge and, in 24 to 48 hours,
begin to move northeastward and east-northeastward as it enters the
mid-latitude westerlies.  The official forecast is close to a
consensus of the ECMWF and GFS solutions.

FORECAST POSITIONS AND MAX WINDS

INIT  28/1500Z 30.5N  54.8W   90 KT 105 MPH
12H  29/0000Z 30.8N  55.3W   95 KT 110 MPH
24H  29/1200Z 31.2N  55.6W   95 KT 110 MPH
36H  30/0000Z 31.6N  55.1W   90 KT 105 MPH
48H  30/1200Z 32.4N  53.7W   90 KT 105 MPH
72H  31/1200Z 34.3N  49.4W   80 KT  90 MPH
96H  01/1200Z 36.5N  44.0W   75 KT  85 MPH
120H  02/1200Z 38.5N  36.5W   70 KT  80 MPH

$$
Forecaster Pasch

085421W_sm.gif

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[LV.9]以壇為家II

劉瑞益@FB|2016-8-31 08:21 | 顯示全部樓層
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