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WTNT34 KNHC 301449
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BULLETIN
HURRICANE MATTHEW ADVISORY NUMBER 10
NWS NATIONAL HURRICANE CENTER MIAMI FL AL142016
1100 AM EDT FRI SEP 30 2016


...MATTHEW STRENGTHENS TO A MAJOR HURRICANE WHILE MOVING WEST- SOUTHWESTWARD OVER THE CARIBBEAN SEA...



SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
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LOCATION...13.7N 70.8W ABOUT 105 MI...170 KM NE OF PUNTA GALLINAS COLOMBIA ABOUT 495 MI...800 KM SE OF KINGSTON JAMAICA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...WSW OR 255 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...968 MB...28.59 INCHES



WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY:

The government of Colombia has changed the Tropical Storm Watch that was in effect from the Colombia/Venezuela border to Riohacha to a Tropical Storm Warning.

The government of Aruba has discontinued the Tropical Storm Watch for Aruba.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for... * Colombia/Venezuela border to Riohacha

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case in the next 12 to 24 hours.

Interests elsewhere along the coasts of Venezuela and Colombia should monitor the progress of Matthew. Interests in Jamaica, Hispaniola, and eastern Cuba should also monitor the progress of Matthew. A hurricane watch may be required for Jamaica later today.

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



DISCUSSION AND 48-HOUR OUTLOOK
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At 1100 AM EDT (1500 UTC), the center of Hurricane Matthew was located near latitude 13.7 North, longitude 70.8 West. Matthew is moving toward the west-southwest near 12 mph (19 km/h). A westward motion at a slower forward speed is expected later today and tonight. A turn toward the west-northwest is forecast by Saturday night, followed by a turn toward the northwest by early Sunday. On the forecast track, the center of Matthew will pass north of the Guajira Peninsula later today and tonight and remain over the central Caribbean Sea through early Sunday.

Data from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 115 mph (185 km/h) with higher gusts. Matthew is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is forecast during the next 48 hours.

Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 195 miles (315 km).

The latest minimum central pressure based on data from the aircraft is 968 mb (28.59 inches).



HAZARDS AFFECTING LAND
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WIND: Tropical storm conditions are expected in portions of the warning area in Colombia later later today and tonight.

RAINFALL: Rainfall totals of 2 to 4 inches with isolated higher amounts are expected over Aruba, Bonaire and Curacao through Saturday. 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.

SURF: Swells generated by Matthew are expected to affect portions of the coasts of Puerto Rico, Hispaniola, Aruba, Bonaire, Curacao, Venezuela, and Colombia 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
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Next intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT.

$$ Forecaster Brennan

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