27 July 2017 - bulletin 428

Updated at 2125 GMT
Latest warnings for 09E, 10E, 07W and 11W
Disturbance update


EASTERN PACIFIC OCEAN
HURRICANE Hilary / 09E
Warning 26 from NHC at 2100 GMT
Position 17.9N 116.6W
Location 555 miles SSW of the southern tip of Baja California, Mexico
Movement 290° (WNW) at 8 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 105 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Minimum central pressure: 989 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 GMT

Hilary will move generally westnorthwest. The system will broadly maintain current intensity but a weakening trend will commence after a day or two. The storm is expected to merge with Irwin.

Tropical storm Irwin / 10E

Warning 22 from NHC at 2100 GMT
Position 14.9N 124.3W
Location 1090 miles WSW of the southern tip of Baja California, Mexico
Movement 265° (W) at 2 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 80 miles of the centre
Minimum central pressure: 1000 mbar
Threatened landmasses NONE
Next warning from NHC at 0300 GMT

Irwin is quasi-stationary and will not move much for a day or so. When Hilary passes to the north, the system will moved off north, later northwest, before merging with Hilary after 3-4 days.

NORTHWESTERN PACIFIC OCEAN

TYPHOON Noru / 07W
Warning 29 from JTWC at 2100 GMT
Position 30.3N 146.8E
Location 441 miles NE of Iwo To
Movement 255° (WSW) at 14 knots
Maximum sustained winds 65 knots gusting to 80 knots
Winds of 34 knots or higher occur within 40 to 170 miles of the centre
Winds of 64 knots or higher occur within 20 to 35 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 28 feet
Next warning from JTWC at 0300 GMT

Noru will slowly veer round to the southwest. The storm will slowly weaken, before restrengthening. The system will slow down to a crawl at the end of the forecast period.

Tropical storm Nesat / 11W
Warning 08 from JTWC at 2100 GMT
Position 19.5N 126.5E
Location 426 miles S of Kadena AB, Okinawa, Japan
Movement 335° (NNW) at 10 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 70 to 120 miles of the centre
Threatened landmasses Taiwan, China
Maximum significant wave height 20 feet
Next warning from JTWC at 0300 GMT

Nesat will move northwest whilst intensifying. The system will peak at 80 knots prior to approaching Taiwan after two 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 11N 29W
Likelihood of tropical cyclone formation within 48 hours is LOW (0%)
Likelihood of tropical cyclone formation within 5 days is LOW (30%)  

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 2100 GMT
System 92W
Position 19.1N 117.2E
Location 250 miles SE of Hong Kong
Likelihood of tropical cyclone formation within 24 hours is HIGH

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