28 September 2016 - bulletin 631

Updated at 2100 GMT
Latest warnings for 14L, 18E, 19E and 21W


NORTHERN ATLANTIC OCEAN
Tropical storm Matthew / 14L
Warning 02 from NHC at 2100 GMT
Position 13.8N 62.0W
Location 480 miles ENE of Curaçao
Movement 280° (W) at 16 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 205 miles to the northeast of the centre
Threatened landmasses Leeward and Windward Islands, ABC Islands, Jamaica, Cuba
Minimum central pressure 1008 mbar
Next warning from NHC at 0300 GMT

Matthew will move west whilst intensifying to hurricane force. It is anticipated that the storm will veer north, towards Jamaica, late in the forecast period.

Regional warnings

Tropical storm WARNINGS are in force for Guadeloupe, Martinique, St Lucia, Dominica, Barbados, St Vincent and the Grenadine islands.
A tropical storm watch is in force for Aruba, Bonaire and Curaçao
Rainfall totals of 4 to 8 inches are expected in the Windward islands and southern Leeward Islands, resulting in life-threatening flash floods and mudslides. The northern Leeward Islands as well as the Virgin Islands and Puerto Rico could see 1 or 2 inches. Aruba, Bonaire and Curaçao could see 1 to 3 inches.

EASTERN PACIFIC OCEAN

Tropical depression Roslyn / 18E
Warning 14 from NHC at 2100 GMT
Position 21.6N 115.2W
Location 350 miles WSW of the southern tip of Baja California
Movement 360° (N) at 6 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses NONE
Minimum central pressure 1007 mbar
Next warning from NHC at 0300 GMT

Roslyn is moving north and is weakening. The system will cease to qualify as a tropical cyclone later today.

Tropical storm Ulika / 19E
Warning 09 from NHC at 2100 GMT
Position 15.1N 138.7W
Location 1125 miles ESE of Hilo, Hawaii
Movement 010° (N) at 6 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 45 miles of the centre
Threatened landmasses NONE
Minimum central pressure 1000 mbar
Next warning from CPHC / NHC at 0300 GMT

Ulika is moving north and is weakening. Later, the storm will head west and weaken rapidly. Depending on its longitude, the next warning will be issued by CPHC (if west of 140W) or NHC (if east of 140W).

NORTHWESTERN PACIFIC OCEAN
Tropical depression Chaba / 21W
Warning 04 from JTWC at 2100 GMT
Position 14.4N 144.0E
Location 67 miles NW of Andersen AFB, Guam
Movement 280° (W) at 11 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Northern Marianas Islands
Maximum significant wave height 10 feet
Next warning from JTWC at 2100 GMT

Chaba will move west, later northwest whilst intensifying to 90 knots after 5 days.

Regional warnings
A tropical storm watch is in force for Guam, Rota, Tinian and Saipan.