Extremadamente bello, sin que tenga ocasión de provocar daños en ningún lugar habitado.

Tan cerca, tan lejos...

Así es, Eric. Esperaba que hubiera alguna referencia a esa anularidad en el último boletín del CNH, pero no comentan nada.

000
WTNT42 KNHC 310253
TCDAT2

HURRICANE GASTON DISCUSSION NUMBER  34
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1100 PM AST TUE AUG 30 2016

Gaston's satellite presentation has continued to improve, with a
large clear eye and cloud tops colder than -60C completely
surrounding the center.  Dvorak intensity estimates have risen to
T5.5 from TAFB and SAB and are a little higher from the objective
ADT.  The initial intensity is therefore raised to 105 kt, making
Gaston a major hurricane again.

Gaston is expected to remain over waters warmer than 26C for at
least the next 36 hours.  In addition, vertical shear is not
expected to increase any further than what is already affecting the
system.  Therefore, Gaston should be able to at least maintain its
intensity in the short term, but weakening is likely to commence by
24 hours.  Due to cooler waters, a rather fast weakening trend
is expected after 36 hours, with Gaston likely to weaken to a
tropical storm between 48 and 72 hours.  The cyclone is now
expected to become post-tropical by day 4 since it will be
difficult for it to maintain organized, deep convection over cold
water, and it should become absorbed by another extratropical
cyclone by day 5.  The NHC intensity forecast closely follows the
ICON intensity consensus for the entire forecast period.

The initial motion is 070/9 kt.  Gaston is becoming embedded in the
mid-latitude westerlies, which should cause it to accelerate
toward the east-northeast during the next couple of days.  Some
reduction in speed is then forecast to start by day 3 once Gaston
begins to interact with the separate extratropical cyclone.  The
track guidance is tightly clustered, and no significant changes
were needed from the previous NHC track forecast.  The updated NHC
forecast continues to show a threat to the Azores in about 3 days.

FORECAST POSITIONS AND MAX WINDS

INIT  31/0300Z 32.9N  50.9W  105 KT 120 MPH
 12H  31/1200Z 33.7N  49.2W  105 KT 120 MPH
 24H  01/0000Z 35.4N  46.0W   95 KT 110 MPH
 36H  01/1200Z 36.9N  41.7W   85 KT 100 MPH
 48H  02/0000Z 37.9N  36.9W   75 KT  85 MPH
 72H  03/0000Z 38.7N  29.5W   50 KT  60 MPH
 96H  04/0000Z 40.5N  23.5W   35 KT  40 MPH...POST-TROPICAL
120H  05/0000Z...DISSIPATED

$$
Forecaster Berg

CNH actualiza su pronóstico de intensidades en su último boletín, y a diferencia de los anteriores, rebaja su intensidad antes de su llegada a Azores. Así, GASTON llegará como tormenta/tempestad tropical, y no como huracán, que es lo que se barajaba con anterioridad.

Eso sí, podría barrer el archipiélago, tal como se dice en la nota de AEMET, para después convertirse en post-tropical y disiparse...

El huracán ya comienza a sentir los efectos de encontrarse cada vez más sometido a las condiciones atmosféricas propias de las latitudes medias, con aguas todavía suficientemente cálidas, pero con cada vez más cizalladura y aire seco.

Así, su desgaste es más que evidente, e incluso comienza a dar síntomas de estar iniciando transición extratropical, al abrirse la pared del ojo y comenzar a aparecer una zona con tormentas que tiene algunos tintes frontales en el cuadrante sur del mismo.

Se activan en Azores avisos por tormenta/tempestad tropical debido al acercamiento de GASTON:

GASTON ya ha sido degradado a tempestad / tormenta tropical...

En el último boletín se anticipa rápido debilitamiento por la fuerte cizalladura reinante, que ha desacoplado los centros del ciclón en la vertical atmosférica, y las aguas cada vez más frías. En 48 horas se habrá disipado por completo.

000
WTNT42 KNHC 020846
TCDAT2

TROPICAL STORM GASTON DISCUSSION NUMBER  43
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
500 AM AST FRI SEP 02 2016

Conventional satellite imagery and two earlier microwave images
show the center of circulation decoupled well to the west of the
remaining deep convection.  The initial intensity is decreased to
55 kt for this advisory and is based on a blend of the subjective
and objective satellite intensity estimates.  Continued weakening is
expected as the cyclone traverses cooler oceanic sea surface
temperatures and remains in a strong vertical shear environment.
Gaston is forecast to degenerate into a remnant low in 36 hours,
with dissipation in about 48 hours.  The NHC intensity forecast is
similar to the previous one, and is close to the IVCN intensity
consensus model.

Because Gaston's low-level circulation has decoupled from the
mid-level flow due to the persistent strong shear, the cyclone's
forward speed has decreased while moving eastward, or 080/13 kt.
This general motion is expected to continue during the next couple
of days.  At the 36-hour period, Gaston should turn northeastward in
response to a frontal system approaching from the northwest and
open up into a trough of low pressure in a couple of days.  The NHC
track foreast remains near the middle of the tightly clustered model
guidance and is similar to the previous advisory.

FORECAST POSITIONS AND MAX WINDS

INIT  02/0900Z 38.5N  34.5W   55 KT  65 MPH
 12H  02/1800Z 38.9N  31.8W   50 KT  60 MPH
 24H  03/0600Z 39.7N  29.0W   40 KT  45 MPH
 36H  03/1800Z 41.3N  26.3W   30 KT  35 MPH...POST-TROP/REMNT LOW
 48H  04/0600Z...DISSIPATED

$$
Forecaster Roberts/Stewart