[Tropical] Public Tropical Cyclone Advisory

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BULLETIN
HURRICANE GASTON ADVISORY NUMBER  42
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1100 PM AST THU SEP 01 2016

...GASTON CONTINUES TO WEAKEN...
...TROPICAL STORM CONDITIONS EXPECTED IN THE WESTERN AND CENTRAL
AZORES FRIDAY AND FRIDAY NIGHT...


SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...38.3N 36.0W
ABOUT 395 MI...635 KM W OF FAIAL ISLAND IN THE CENTRAL AZORES
ABOUT 480 MI...775 KM W OF LAJES AIR BASE IN THE AZORES
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...ENE OR 75 DEGREES AT 23 MPH...37 KM/H
MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for...
* Flores and Corvo in the western Azores
* Faial, Pico, Graciosa, Sao Jorge, and Terceira in the central
Azores

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within
the next 12 to 24 hours.

For storm information specific to your area, please monitor
products issued by your national meteorological service.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1100 PM AST (0300 UTC), the center of Hurricane Gaston was
located near latitude 38.3 North, longitude 36.0 West.  Gaston is
moving toward the east-northeast near 23 mph (37 km/h).  An
eastward or east-northeastward motion at a slower forward speed is
expected during the next day or so.  On the forecast track, the
center of Gaston will move near the western Azores on Friday, and
pass north of the central Azores Friday night.

Maximum sustained winds have decreased to near 75 mph (120 km/h)
with higher gusts.  Additional weakening is forecast during the
next 48 hours, and Gaston is expected to become a tropical storm
overnight.  The cyclone should become post-tropical on Saturday.

Hurricane-force winds extend outward up to 70 miles (110 km) from
the center, and tropical-storm-force winds extend outward up to 175
miles (280 km).

The estimated minimum central pressure is 989 mb (29.21 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions are expected in the western Azores
on Friday and in the central Azores Friday night.

RAINFALL:  Gaston is expected to produce total rain accumulations of
1 to 3 inches, primarily over the western Azores, through the
weekend.

SURF:  Swells generated by Gaston are beginning to affect the
Azores and will continue into Saturday.  These swells are likely
to cause life-threatening surf and rip current conditions.  For more
information, please consult products from your local weather office.


NEXT ADVISORY
-------------
Next intermediate advisory at 200 AM AST.
Next complete advisory at 500 AM AST.

$$
Forecaster Berg
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