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000
WTNT34 KNHC 301217 CCA
TCPAT4

BULLETIN
HURRICANE MATTHEW INTERMEDIATE ADVISORY NUMBER 9A...CORRECTED
NWS NATIONAL HURRICANE CENTER MIAMI FL AL142016
800 AM AST FRI SEP 30 2016

Corrected for spelling of Punta Gallinas in summary section.


...MATTHEW CONTINUING TO INTENSIFY OVER THE SOUTH-CENTRAL CARIBBEAN SEA...



SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
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LOCATION...13.8N 70.3W ABOUT 130 MI...210 KM NE OF PUNTA GALLINAS COLOMBIA ABOUT 520 MI...840 KM ESE OF KINGSTON JAMAICA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WSW OR 255 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...971 MB...28.67 INCHES



WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY:

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

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

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

A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 24 to 36 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 800 AM AST (1200 UTC), the center of Hurricane Matthew was located by an Air Force Reserve Hurricane Hunter aircraft near latitude 13.8 North, longitude 70.3 West. Matthew is moving toward the west-southwest near 14 mph (22 km/h). A turn toward the west is expected later today, and this westward motion with a decrease in forward speed are forecast through Saturday. A turn toward the northwest is expected Saturday night or Sunday.

Data from the aircraft indicate that maximum sustained winds have increased to near 105 mph (165 km/h) with higher gusts. Additional strengthening is forecast during the next 48 hours, and Matthew could become a major hurricane later today or tonight.

Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km).

The latest minimum central pressure reported by the aircraft was 971 mb (28.67 inches).



HAZARDS AFFECTING LAND
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WIND: Tropical storm conditions are possible in Aruba this morning. Tropical storm conditions are possible over portions of the watch area in Colombia beginning later today.

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 complete advisory at 1100 AM AST.

$$ Forecaster Brennan

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