27 July 2017 - bulletin 427

Updated at 1510 GMT
Latest warnings for 09E, 10E, 07W and 11W
Disturbance update


EASTERN PACIFIC OCEAN
HURRICANE Hilary / 09E
Warning 25 from NHC at 1500 GMT
Position 17.6N 116.0W
Location 540 miles SSW of the southern tip of Baja California, Mexico
Movement 290° (WNW) at 9 knots
Maximum sustained winds 70 knots gusting to 85 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: 986 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 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 21 from NHC at 1500 GMT
Position 15.0N 124.2W
Location 1080 miles WSW 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 of the centre
Minimum central pressure: 1000 mbar
Threatened landmasses NONE
Next warning from NHC at 2100 GMT

Irwin will move westsouthwest, and will maintain current strength.The storm is expected to merge with Hilary (see above).

NORTHWESTERN PACIFIC OCEAN

TYPHOON Noru / 07W
Warning 28 from JTWC at 1500 GMT
Position 30.7N 148.4E
Location 391 miles NE of Minami Tori Shima, Japan
Movement 265° (W) at 18 knots
Maximum sustained winds 75 knots gusting to 90 knots
Winds of 34 knots or higher occur within 70 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 27 feet
Next warning from JTWC at 2100 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 07 from JTWC at 1500 GMT
Position 18.6N 126.9E
Location 415 miles NE of Manila, Philippines
Movement 315° (NW) at 6 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 18 feet
Next warning from JTWC at 2100 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%) 

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