Seguimento Açores e Madeira - Setembro 2018

lcs

Cirrus
Registo
7 Dez 2016
Mensagens
27
Local
Lajes das Flores
Os cirrus vistos do Corvo estão a ser gerados pela intensa atividade convectiva a sul do GOc. Na 2ª imagem, as Flores estão no topo-centro.

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Bastante elucidativo!!
 

Tonton

Nimbostratus
Registo
23 Dez 2017
Mensagens
1,295
Local
Mactamã
000
WTNT45 KNHC 122040
TCDAT5

Subtropical Storm Joyce Discussion Number 1
NWS National Hurricane Center Miami FL AL102018
500 PM AST Wed Sep 12 2018

The strong low pressure system which the NHC has been monitoring in
the north Atlantic for a couple of days has developed a cyclonically
curved band of deep convection near the center, and scatterometer
data indicate that the winds are near 40 kt. Since the system is
still vertically stacked with an upper-low, it is then classified
as a subtropical cyclone at this time. However, the cyclone is
gaining organization while it is acquiring tropical characteristics.
The NHC forecast calls for Joyce to transform into a tropical system
in about 12 to 24 hours. Since the ocean is warm, some slight
strengthening is possible during the next 3 days. After that time,
Joyce will be over cooler waters and should then be absorbed by a
larger extratropical low.

Joyce has been moving southwestward or 225 degrees at 5 kt, steered
by the northerly flow around the subtropical high which has been
steering Florence and to west of the mid-latitude trough which
is forcing Helene to recurve. In a couple of days, global models
indicate that the steering pattern will change as the trough
amplifies, and Joyce should then turn toward the northeast with an
increase in forward speed.


FORECAST POSITIONS AND MAX WINDS

INIT 12/2100Z 34.3N 41.9W 40 KT 45 MPH
12H 13/0600Z 33.7N 42.6W 40 KT 45 MPH...TROPICAL STORM
24H 13/1800Z 33.0N 43.5W 40 KT 45 MPH
36H 14/0600Z 32.5N 43.5W 45 KT 50 MPH
48H 14/1800Z 32.5N 43.5W 50 KT 60 MPH
72H 15/1800Z 34.0N 41.0W 50 KT 60 MPH
96H 16/1800Z 37.0N 35.0W 40 KT 45 MPH
120H 17/1800Z...ABSORBED

$$
Forecaster Avila
 

lserpa

Cumulonimbus
Registo
29 Dez 2013
Mensagens
3,342
Local
Horta, Matriz, (90m)
Aqui pelo Faial, Costa Sul, o mar já está muito revolto, bastante cavado, vento 30/40km/h e como era esperado, tempo com aspecto de “máquina de lavar”, ou seja, visibilidade limitada, capacete de nuvens em cima das ilhas e no mar céu com poucas nuvens.


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