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BULLETIN
Hurricane Helene Advisory Number  13
NWS National Hurricane Center Miami FL       AL082018
1100 AM AST Mon Sep 10 2018

...HELENE STRENGTHENING QUICKLY OVER THE TROPICAL ATLANTIC...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...14.6N 30.0W
ABOUT 375 MI...600 KM W OF THE SOUTHERNMOST CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...974 MB...28.77 INCHES


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


DISCUSSION AND OUTLOOK
----------------------
At 1100 AM AST (1500 UTC), the eye of Hurricane Helene was located
near latitude 14.6 North, longitude 30.0 West. Helene is moving
toward the west-northwest near 16 mph (26 km/h). A west-
northwestward motion with a decrease in forward speed is
expected through late Tuesday, followed by a turn toward the
northwest and then toward the north-northwest on Wednesday and
Thursday.

Maximum sustained winds have increased to near 105 mph (165 km/h)
with higher gusts.  Some additional strengthening is expected
today, and Helene is forecast to become a major hurricane by
tonight. Steady weakening is forecast to begin by late Tuesday.

Hurricane-force winds extend outward up to 35 miles (55 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
(165 km).

The estimated minimum central pressure is 974 mb (28.77 inches).


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


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

$$
Forecaster Brennan

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