815 WTNT31 KNHC 310538 TCPAT1 BULLETIN Potential Tropical Cyclone Six Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL062018 200 AM AST Fri Aug 31 2018 ...DISTURBANCE MOVING CLOSER TO THE SOUTHERN CABO VERDE ISLANDS... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...13.4N 21.2W ABOUT 235 MI...380 KM ESE OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 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 24 to 36 hours. 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 disturbance was centered near latitude 13.4 North, longitude 21.2 West. The system is moving toward the west near 13 mph (20 km/h), and a general motion toward the west-northwest with an increase in forward speed is expected during the next 2 to 3 days. On the forecast track, the disturbance or the tropical cyclone is expected to move near or over the southern Cabo Verde Islands later today and tonight. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Strengthening is forecast, and the disturbance is expected to become a tropical storm later today or tonight. 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 1007 mb (29.74 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 complete advisory at 500 AM AST. $$ Forecaster Berg