21 July 2017 - bulletin 410

Updated at 2110 GMT
Latest warnings for 06E, 07E, 09E, 07W, 08W and 09W
First warning for 10W
Disturbance update


CENTRAL PACIFIC OCEAN
Tropical storm Fernanda / 06E
Warning 40 from CPHC at 2100 GMT
Position 18.7N 144.3W
Location 705 miles E of Hilo, Hawaii
Movement 280° (W) at 7 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 80 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 18 from NHC at 2100 GMT
Position 14.9N 102.7W
Location 895 miles SW 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 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 and is expected to strengthen to 55 knots. After three days, the storm will weaken as it veers northwest.

Tropical depression 09E
Warning 02 from NHC at 2100 GMT
Position 9.0N 94.7W
Location 650 miles sSE of Acapulco, Mexico
Movement 280° (WNW) at 12 knots
Maximum sustained winds 30 knots gusting to 40 knots
Minimum central pressure: 1008 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 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 05 from JTWC at 2100 GMT
Position 28.5N 153.8E
Location 825 miles ESE of Yokosuka, Japan
Movement 285° (WNW) at 10 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 60 to 165 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 16 feet
Next warning from JTWC at 0300 GMT

Noru will move west. As it interacts with tropical storm 09W, the track forecast becomes highly uncertain. 07W will intensify to 70 knots, before the aforementioned interaction, which will prompt a weakening.

Tropical depression 08W
Warning 04 from JTWC at 2100 GMT
Position 18.1N 112.6E
Location 130 miles ESE of Hainan, China
Movement 280° (W) at 5 knots
Maximum sustained winds 25 knots gusting to 35 knots
Threatened landmasses Hainan Island
Maximum significant wave height 10 feet
Next warning from JTWC at 0300 GMT

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

Tropical storm Kulap / 09W
Warning 03 from JTWC at 2100 GMT
Position 30.4N 175.0E
Location 807 miles NNE of Wake Island
Movement 320° (NW) at 24 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 70 to 160 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 14 feet
Next warning from JTWC at 0300 GMT

Kulap will move westnorthwest, whilst strengthening to 40 knots. It will approach tropical storm 07W and be absorbed by it.

Tropical depression 10W
Warning 01 from JTWC at 2100 GMT
Position 19.6N 122.2E
Location 308 miles NNE of Manila, Philippines
Movement 300° (WNW) at 11 knots
Maximum sustained winds 25 knots gusting to 35 knots
Threatened landmasses China
Maximum significant wave height 10 feet
Next warning from JTWC at 0300 GMT

10W has formed in the Luzon Channel, and will move westnorthwest towards the Chinese mainland, where it will dissipate.

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 2100 GMT
System 98W is now 10W

System 99W
Position 6.0N 135.0E
Location 114 miles SE of Palau
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

EASTERN PACIFIC OCEAN
Update from NHC at 1500 GMT
System 99E
Position 12.1N 108.6W
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 5 days is HIGH (80%)

No comments: