ZCZC MIATCPAT3 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Storm Helene Intermediate Advisory Number 8A NWS National Hurricane Center Miami FL AL082018 800 AM AST Sun Sep 09 2018 ...HELENE MOVING TO THE SOUTH OF THE CABO VERDE ISLANDS... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...13.2N 24.5W ABOUT 110 MI...180 KM S OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 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 800 AM AST (1200 UTC), the center of Tropical Storm Helene was located near latitude 13.2 North, longitude 24.5 West. Helene is moving toward the west near 14 mph (22 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 are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast during the next couple of days, and Helene is expected to become a hurricane later today. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within portions of the warning area today. Hurricane conditions are also possible in the southernmost Cabo Verde Islands today. RAINFALL: Helene is expected to produce total rain accumulations of 2 to 4 inches over the southern Cabo Verde Islands through today, with isolated maximum amounts of 6 inches. This rainfall may produce life-threatening flash floods. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Pasch NNNN
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