23 July 2017 - bulletin 414

Updated at 0910 GMT
Latest warnings for 07E, 09E, 10E, 07W, 08W and 09W
Final warning for 10W
Disturbance update


EASTERN PACIFIC OCEAN
Tropical storm Greg / 07E
Warning 24 from NHC at 0900 GMT
Position 14.7N 127.7W
Location 1290 miles WSW of the southern tip of Baja California, Mexico
Movement 270° (W) at 12 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 60 miles of the centre
Minimum central pressure: 1001 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 GMT

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

Tropical storm Hilary / 09E
Warning 08 from NHC at 0900 GMT
Position 12.5N 101.6W
Location 485 miles SSE of Manzanillo, Mexico
Movement 300° (WNW) at 13 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 70 miles of the centre
Minimum central pressure: 1005 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 GMT

Hilary will move generally northwest. The system will steadily intensify, reaching 95 knots after four days. After that time, a weakening trend will commence. 

Tropical storm Irwin / 10E
Warning 04 from NHC at 0900 GMT
Position 14.7N 115.2W
Location 630 miles SSW of the southern tip of Baja California, Mexico
Movement 280° (W) at 6 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 60 miles of the centre
Minimum central pressure: 1005 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 GMT

Irwin will move west, whilst strengthening to 65 knots. There is a possibility of interaction with Hilary towards the end of the 5-day forecast period.

NORTHWESTERN PACIFIC OCEAN

Tropical storm Noru / 07W
Warning 11 from JTWC at 0900 GMT
Position 27.9N 151.2E
Location 268 miles NW of Minami Tori Shima, Japan
Movement 190° (S) at 4 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 60 to 115 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 26 feet
Next warning from JTWC at 1500 GMT

Noru is turning round on the first leg of its loop motion that will occur over the next few days. The system will intensify to 80 knots, before weakening as it once more travels southwest. A limited interaction with Kulap is anticipated.

Tropical storm Sonca / 08W
Warning 10 from JTWC at 0900 GMT
Position 17.6N 111.3E
Location 197 miles ENE of Da Nang, Vietnam
Movement 270° (W) at 3 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 30 to 35 miles of the centre
Threatened landmasses Hainan Island
Maximum significant wave height 12 feet
Next warning from JTWC at 0300 GMT

Sonca is approaching Hainan Island. After making landfall, the system will dissipate there. 

Tropical storm Kulap / 09W
Warning 09 from JTWC at 0900 GMT
Position 30.9N 166.3E
Location 696 miles N of Wake Island
Movement 285° (WNW) at 9 knots
Maximum sustained winds 35 knots gusting to 40 knots
Winds of 34 knots or higher occur within 0 to 135 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 18 feet
Next warning from JTWC at 1500 GMT

Kulap will move west, whilst weakening and possibly becoming sub-tropical in nature. A degree of interaction with Noru cannot be ruled out.

Tropical depression Roke / 10W
Warning 06 from JTWC at 0300 GMT
Position 22.3N 114.8E
Location 33 miles E of Hong Kong
Movement 295° (WNW) at 12 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses China
Maximum significant wave height 12 feet
FINAL WARNING

Roke is making landfall near Hong Kong, where it will soon dissipate.

Hong Kong warnings
Stand by signal #1 is in force, but is expected to be lifted soon.

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 99W
Position 11.2N 128.8E
Location 410 miles NW of Palau
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

System 91W
Position 7.4N 135.5E
Location 70 miles E of Palau
Likelihood of tropical cyclone formation within 24 hours is LOW 

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