22 July 2017 - bulletin 411

Updated at 0930 GMT
Latest warnings for 06E, 07E, 09E, 07W, 08W, 09W and 10W
Disturbance update



CENTRAL PACIFIC OCEAN
Tropical storm Fernanda / 06E
Warning 42 from CPHC at 0900 GMT
Position 19.0N 145.4W
Location 635 miles E of Hilo, Hawaii
Movement 280° (WNW) at 7 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: 1004 mbar
Threatened landmasses NONE
Next warning from CPHC at 1500 GMT

Fernanda will move westnorthwest, and is continuing to weaken. The system will cease to be a tropical cyclone within a day or so.

Hawaiian warnings
Large and potentially dangerous surf will affect east-facing shores of the main Hawaiian islands

EASTERN PACIFIC OCEAN
Tropical storm Greg / 07E
Warning 20 from NHC at 0900 GMT
Position 15.2N 123.1W
Location 1010 miles WSW of the southern tip of Baja California, Mexico
Movement 275° (W) at 11 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 strengthen to 50 knots. After three days, the storm will weaken as it veers northwest, dissipating after 4 days. .

Tropical depression 09E
Warning 04 from NHC at 0900 GMT
Position 9.6N 96.6W
Location 550 miles SSE of Acapulco, Mexico
Movement 285° (WNW) at 12 knots
Maximum sustained winds 30 knots gusting to 40 knots
Minimum central pressure: 1006 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 GMT

09E will move westnorthwest, later northwest. The system will steadily intensify, reaching 95 knots after five days.

NORTHWESTERN PACIFIC OCEAN

Tropical storm Noru / 07W
Warning 07 from JTWC at 0900 GMT
Position 28.2N 153.1E
Location 245 miles N of Minami Tori Shima, Japan
Movement 270° (WNW) at 5 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 80 to 165 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 20 feet
Next warning from JTWC at 1500 GMT

Noru will move west and intensify to 80 knots. The storm will do a full loop as it interacts with 09W.

Tropical depression 08W
Warning 06 from JTWC at 0900 GMT
Position 17.8N 112.0E
Location 238 miles ENE of Da Nang, Vietnam
Movement 280° (W) at 6 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Hainan Island
Maximum significant wave height 11 feet
Next warning from JTWC at 1500 GMT

08W is approaching Hainan Island. After making landfall, the system will dissipate there. 

Tropical storm Kulap / 09W
Warning 05 from JTWC at 0900 GMT
Position 30.1N 170.1E
Location 675 miles NNE of Wake Island
Movement 260° (W) at 18 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 85 to 140 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 20 feet
Next warning from JTWC at 1500 GMT

Kulap will move west, whilst maintaining current strength for a day or so. It will approach tropical storm 07W and be absorbed by it.

Tropical storm Roke / 10W
Warning 03 from JTWC at 0900 GMT
Position 21.3N 118.6E
Location 252 miles ESE of Hong Kong
Movement 295° (WNW) at 20 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 60 to 75 miles of the centre
Threatened landmasses China
Maximum significant wave height 13 feet
Next warning from JTWC at 0300 GMT

Roke will move westnorthwest towards the Chinese mainland, where it will dissipate.

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 99W
Position 7.5N 133.7E
Location 70 miles NW of Palau
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System 99E
Position 14.2N 111.9W
Location 500 miles S of the southern tip of Baja California
Likelihood of tropical cyclone formation within 48 hours is HIGH (90%)
Likelihood of tropical cyclone formation within 5 days is HIGH (90%)

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