ZCZC MIATCPAT4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE MATTHEW INTERMEDIATE ADVISORY NUMBER 13A NWS NATIONAL HURRICANE CENTER MIAMI FL AL142016 800 AM EDT SAT OCT 01 2016 ...POWERFUL MATTHEW MOVING WESTWARD... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...13.4N 73.1W ABOUT 365 MI...585 KM S OF PORT AU PRINCE HAITI ABOUT 400 MI...645 KM SE OF KINGSTON JAMAICA MAXIMUM SUSTAINED WINDS...155 MPH...250 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...947 MB...27.96 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Jamaica A Tropical Storm Warning is in effect for... * Colombia/Venezuela border to Riohacha A Tropical Storm Watch is in effect for... * Haiti from the southern border with the Dominican Republic to Port-Au-Prince Interests elsewhere in Hispaniola and eastern Cuba should monitor the progress of Matthew. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM EDT (1200 UTC), the center of Hurricane Matthew was located by an Air Force Reserve Hurricane Hunter aircraft near latitude 13.4 North, longitude 73.1 West. Matthew is moving toward the west near 7 mph (11 km/h). A turn toward the west-northwest is forecast later today, followed by a turn toward the north-northwest on Sunday. On the forecast track, the center of Matthew will continue to move away from the Guajira Peninsula this morning, move across the central Caribbean Sea today and Sunday, and approach Jamaica Sunday night and Monday. Maximum sustained winds are near 155 mph (250 km/h) with higher gusts. Matthew is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are possible this weekend, but Matthew is expected to remain a powerful hurricane through Monday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 205 miles (335 km). The estimated minimum central pressure based on data from the aircraft is 947 mb (27.96 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected to continue in portions of the warning area in Colombia for the next few hours. Hurricane conditions are possible on Jamaica on Monday, with tropical storm conditions possible by late Sunday. Tropical storm conditions are possible in the watch area in Haiti by late Sunday. RAINFALL: Rainfall totals of 2 to 4 inches with isolated higher amounts are expected over Aruba, Bonaire and Curacao through today. Rainfall totals of 2 to 4 inches with isolated higher amounts are expected along the coast of Colombia from the Venezuelan border to Riohacha. Rainfall totals of 1 to 2 inches with isolated higher amounts are expected along the coast of Venezuela from Coro to the Colombian border. Rainfall totals of 10 to 15 inches with isolated maximum amounts of 25 inches are expected across Jamaica and southern and southwestern Haiti. These rains may produce life-threatening flash flooding and mud slides. SURF: Swells generated by Matthew are expected to affect portions of the coasts of Puerto Rico, Hispaniola, Jamaica, Aruba, Bonaire, Curacao, Venezuela, Colombia, and eastern Cuba during the next few days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM EDT. $$ Forecaster Brennan NNNN