24 July 2017 - bulletin 418

Updated at 1520 GMT
Latest warnings for 07E, 09E, 10E, 07W, 08W and 09W


EASTERN PACIFIC OCEAN
Tropical storm Greg / 07E
Warning 29 from NHC at 1500 GMT
Position 14.6N 133.2W
Location 1625 miles WSW of the southern tip of Baja California, Mexico
Movement 280° (W) at 10 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 80 miles of the centre
Minimum central pressure: 1003 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

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

HURRICANE Hilary / 09E
Warning 13 from NHC at 1500 GMT
Position 14.1N 104.2W
Location 340 miles S of Manzanillo, Mexico
Movement 295° (WNW) at 7 knots
Maximum sustained winds 70 knots gusting to 85 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: 989 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

Hilary will move generally westnorthwest. The system will steadily intensify, reaching 110 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 09 from NHC at 1500 GMT
Position 14.8N 117.5W
Location 750 miles SW of the southern tip of Baja California, Mexico
Movement 270° (W) at 2 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 80 miles to the north of the centre
Minimum central pressure: 1001 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 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 16 from JTWC at 1500 GMT
Position 26.3N 154.4E
Location 128 miles N of Minami Tori Shima, Japan
Movement 115° (ESE) at 10 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 2100 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 15 from JTWC at 1500 GMT
Position 16.8N 110.6E
Location 141 miles ENE of Da Nang, Vietnam
Movement 235° (SW) at 3 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 40 to 45 miles of the centre
Threatened landmasses Vietnam
Maximum significant wave height 12 feet
Next warning from JTWC at 2100 GMT

Sonca is now moving southwest, 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 14 from JTWC at 1500 GMT
Position 33.0N 159.9E
Location 612 miles NNE of Minami Tori Shima, Japan
Movement 285° (WNW) at 15 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 30 to 125 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 17 feet
Next warning from JTWC at 2100 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

No comments: