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BULLETIN
Hurricane Helene Advisory Number  20
NWS National Hurricane Center Miami FL       AL082018
500 AM AST Wed Sep 12 2018

...HELENE CONTINUES TO WEAKEN...


SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...19.2N 35.7W
ABOUT 800 MI...1290 KM WNW OF THE CABO VERDE ISLANDS
ABOUT 1400 MI...2250 KM SSW OF THE AZORES
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 13 MPH...20 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 500 AM AST (0900 UTC), the center of Hurricane Helene was located
near latitude 19.2 North, longitude 35.7 West. Helene is moving
toward the north-northwest near 13 mph (20 km/h), and a turn
toward the north is expected later today. A turn toward the
northeast with an increase in forward speed is likely by the end of
the week.

Maximum sustained winds are 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 1100 AM AST.

$$
Forecaster Zelinsky

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