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BULLETIN
Potential Tropical Cyclone Six Advisory Number   4
NWS National Hurricane Center Miami FL       AL062018
500 AM AST Fri Aug 31 2018

...TROPICAL STORM CONDITIONS EXPECTED OVER THE SOUTHERN CABO
VERDE ISLANDS LATER TODAY...


SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...13.6N 21.4W
ABOUT 215 MI...350 KM ESE OF THE SOUTHERNMOST CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES


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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

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

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 OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the disturbance was centered near latitude
13.6 North, longitude 21.4 West.  The system is moving toward the
west-northwest near 12 mph (19 km/h), and this motion at a slightly
faster forward speed is expected to continue for the next three to
four days.  On the forecast track, disturbance is expected to move
near or over the southern Cabo Verde Islands as a tropical storm
later today and tonight.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Strengthening is forecast during the next several days, and the
disturbance is expected to become a tropical storm later today.

Environmental conditions are favorable for the system to become a
tropical cyclone later today.
* Formation chance through 48 hours...high...90 percent
* Formation chance through 5 days...high...90 percent

The estimated minimum central pressure is 1006 mb (29.71 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL:  The system could produce total rain accumulations of 4 to
8 inches across the southern Cabo Verde Islands.  These rains could
produce life-threatening flash floods.

WINDS:  Tropical storm conditions are expected in the southern Cabo
Verde Islands later today and tonight.


NEXT ADVISORY
-------------
Next intermediate advisory at 800 AM AST.
Next complete advisory at 1100 AM AST.

$$
Forecaster Berg

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