24 July 2017 - bulletin 419

Updated at 2215 GMT
Latest warnings for 07E, 09E, 10E, 07W, 08W and 09W


EASTERN PACIFIC OCEAN
Tropical storm Greg / 07E
Warning 30 from NHC at 2100 GMT
Position 14.5N 134.3W
Location 1695 miles WSW of the southern tip of Baja California, Mexico
Movement 275° (W) at 10 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 70 miles of the centre
Minimum central pressure: 1003 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 GMT

Greg will continue to move west, later northwest, and is expected to slowly weaken. The storm will dissipate after two days, near 140W.

HURRICANE Hilary / 09E
Warning 14 from NHC at 2100 GMT
Position 14.5N 104.9W
Location 340 miles S of Manzanillo, Mexico
Movement 300° (WNW) at 7 knots
Maximum sustained winds 75 knots gusting to 90 knots
Winds of 34 knots or higher occur within 60 miles of the centre
Winds of 64 knots or higher occur within 10 miles of the centre
Minimum central pressure: 986 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 GMT

Hilary will move generally westnorthwest. The system will steadily intensify, reaching 105 knots after two days. A weakening trend will then commence. The storm could show some interaction with Irwin (see below) late in the forecast period.

Tropical storm Irwin / 10E
Warning 10 from NHC at 2100 GMT
Position 15.0N 117.8W
Location 750 miles SW of the southern tip of Baja California, Mexico
Movement 280° (W) at 2 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 80 miles of the centre
Minimum central pressure: 997 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 GMT

Irwin will move west, whilst strengthening to 70 knots. There is a possibility of interaction with Hilary towards the end of the 5-day forecast period.

NORTHWESTERN PACIFIC OCEAN

TYPHOON Noru / 07W
Warning 17 from JTWC at 2100 GMT
Position 25.6N 155.7E
Location 125 miles NE of Minami Tori Shima, Japan
Movement 110° (ESE) at 14 knots
Maximum sustained winds 80 knots gusting to 100 knots
Winds of 34 knots or higher occur within 95 miles of the centre
Winds of 64 knots or higher occur within 15 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 26 feet
Next warning from JTWC at 0300 GMT

Noru is moving east on its loop motion that will occur over the next few days. The system will intensify to 95 knots, before weakening as it once more travels southwest. A limited interaction with Kulap is anticipated. 

Tropical storm Sonca / 08W
Warning 16 from JTWC at 2100 GMT
Position 16.7N 109.8E
Location 96 miles ENE of Da Nang, Vietnam
Movement 265° (W) at 3 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 40 to 50 miles of the centre
Threatened landmasses Vietnam
Maximum significant wave height 13 feet
Next warning from JTWC at 2100 GMT

Sonca is now moving west, and will pass to the south of Hainan Island, whilst intensifying to 45 knots. The storm will make landfall in Vietnam tomorrow.

Tropical storm Kulap / 09W
Warning 15 from JTWC at 2100 GMT
Position 33.1N 158.1E
Location 576 miles NNE of Minami Tori Shima, Japan
Movement 275° (W) at 15 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 30 to 125 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 13 feet
Next warning from JTWC at 0300 GMT

Kulap will move west but will weaken and dissipate within a day or so, as it is absorbed into Noru to its west. 

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 99W
Position 11.0N 130.7E
Location 324 miles NW of Palau
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

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