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BULLETIN
Hurricane Helene Advisory Number  21
NWS National Hurricane Center Miami FL       AL082018
1100 AM AST Wed Sep 12 2018

...HELENE FORECAST TO WEAKEN OVER THE EASTERN ATLANTIC...
...INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...20.3N 36.5W
ABOUT 870 MI...1405 KM WNW OF THE CABO VERDE ISLANDS
ABOUT 1350 MI...2170 KM SSW OF THE AZORES
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NNW OR 340 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

Interests in the Azores should monitor the progress of Helene.


DISCUSSION AND OUTLOOK
----------------------
At 1100 AM AST (1500 UTC), the eye of Hurricane Helene was located
near latitude 20.3 North, longitude 36.5 West. Helene is moving
toward the north-northwest near 14 mph (22 km/h). A turn toward the
north and northeast with an increase in forward speed is expected
during the next few days.

Maximum sustained winds remain near 90 mph (150 km/h) with higher
gusts.  Gradual weakening is forecast over the next couple of days,
and Helene is expected to become a tropical storm on Thursday.

Hurricane-force winds extend outward up to 45 miles (75 km) from the
center and tropical-storm-force winds extend outward up to 175 miles
(280 km).

The estimated minimum central pressure is 977 mb (28.85 inches).


HAZARDS AFFECTING LAND
----------------------
None


NEXT ADVISORY
-------------
Next complete advisory at 500 PM AST.

$$
Forecaster Avila

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