26 July 2017 - bulletin 424

Updated at 1520 GMT
Latest warnings for 07E, 09E, 10E, 07W and 11W


EASTERN PACIFIC OCEAN
Tropical depression Greg / 07E
Warning 37 from CPHC at 1500 GMT
Position 18.1N 141.3W
Location 965 miles E of South Point, Hawaii
Movement 280° (W) at 10 knots
Maximum sustained winds 25 knots gusting to 35 knots
Minimum central pressure: 1006 mbar
Threatened landmasses NONE
Next warning from CPHC at 2100 GMT

Greg is moving west, and will dissipate later today.

As Greg has passed west of 140W, warnings on this system are now being issued by the Central Pacific Hurricane Center.

HURRICANE Hilary / 09E
Warning 21 from NHC at 1500 GMT
Position 16.4N 112.3W
Location 475 miles SSW of the southern tip of Baja California, Mexico
Movement 280° (W) at 11 knots
Maximum sustained winds 90 knots gusting to 110 knots
Winds of 34 knots or higher occur within 90 miles of the centre
Winds of 64 knots or higher occur within 15 miles of the centre
Minimum central pressure: 973 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

Hilary will move generally westnorthwest. The system will maintain current intensity but a weakening trend will commence after tomorrow. The storm could show some interaction with Irwin (see below) late in the forecast period.

Tropical storm Irwin / 10E

Warning 17 from NHC at 1500 GMT
Position 15.7N 121.5W
Location 905 miles WSW of the southern tip of Baja California, Mexico
Movement 255° (WSW) at 6 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 70 miles of the centre
Minimum central pressure: 994 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

Irwin will move westsouthwest, and weakening slowly. Interaction with Hilary will cause gradual weakening, and causing the cyclone to stall, then head away north.

NORTHWESTERN PACIFIC OCEAN

TYPHOON Noru / 07W
Warning 24 from JTWC at 1500 GMT
Position 29.8N 155.6E
Location 347 miles NNE of Minami Tori Shima, Japan
Movement 305° (NW) at 14 knots
Maximum sustained winds 80 knots gusting to 100 knots
Winds of 34 knots or higher occur within 115 to 190 miles of the centre
Winds of 64 knots or higher occur within 25 to 50 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 27 feet
Next warning from JTWC at 2100 GMT

Noru is veering northwest, and will slowly veer round to the southwest. The storm will slowly weaken, before restrengthening after 4 days. 

Tropical storm Nesat / 11W
Warning 03 from JTWC at 1500 GMT
Position 17.0N 128.0E
Location 570 miles SE of Kadena AB, Okinawa, Japan
Movement 345° (NNW) at 8 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 30 to 130 miles of the centre
Threatened landmasses Taiwan
Maximum significant wave height 12 feet
Next warning from JTWC at 2100 GMT

Nesat will move north, later northwest whilst intensifying quickly. The system will peak at 85 knots prior to approaching Taiwan after 4 days, and making final landfall in China the day after.

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT
System No Invest Assigned
Position 10N 24W
Likelihood of tropical cyclone formation within 48 hours is LOW (0%)
Likelihood of tropical cyclone formation within 5 days is LOW (20%) 

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