315 
WTNT33 KNHC 090542
TCPAT3

BULLETIN
Tropical Storm Helene Intermediate Advisory Number 7A
NWS National Hurricane Center Miami FL       AL082018
200 AM AST Sun Sep 09 2018

...OUTER BANDS OF HELENE BEGINNING TO AFFECT THE SOUTHERNMOST
CABO VERDE ISLANDS...


SUMMARY OF 200 AM AST...0600 UTC...INFORMATION
----------------------------------------------
LOCATION...13.4N 23.4W
ABOUT 120 MI...190 KM SE OF THE SOUTHERNMOST CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES


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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Watch is in effect for...
* The Cabo Verde islands of Santiago, Fogo, and Brava

A Tropical Storm Warning is in effect for...
* The Cabo Verde islands of Santiago, Fogo, and Brava

A Hurricane Watch means that hurricane conditions are possible
within the watch area.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.

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


DISCUSSION AND OUTLOOK
----------------------
At 200 AM AST (0600 UTC), the center of Tropical Storm Helene was
located near latitude 13.4 North, longitude 23.4 West. Helene is
moving toward the west near 13 mph (20 km/h), and this motion is
expected to continue through today.  A turn toward the
west-northwest is forecast to occur by Monday.

Maximum sustained winds remain near 60 mph (95 km/h) with higher
gusts. Strengthening is forecast during the next 48 hours, and
Helene is expected to become a hurricane later today.

Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.

The estimated minimum central pressure is 999 mb (29.50 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions are expected to reach the
warning area within the next few hours.  Hurricane conditions
are possible in the southernmost Cabo Verde Islands later today.

RAINFALL:  Helene is expected to produce total rain accumulations of
2 to 4 inches over the southern Cabo Verde Islands through Sunday,
with isolated maximum amounts of 6 inches. This rainfall may produce
life-threatening flash floods.


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

$$
Forecaster Cangialosi/Brown