27 July 2017 - bulletin 426

Updated at 0910 GMT
Latest warnings for 09E, 10E, 07W and 11W
Disturbance update


EASTERN PACIFIC OCEAN
HURRICANE Hilary / 09E
Warning 24 from NHC at 0900 GMT
Position 17.3N 115.1W
Location 515 miles SSW of the southern tip of Baja California, Mexico
Movement 290° (WNW) at 11 knots
Maximum sustained winds 75 knots gusting to 90 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: 981 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 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 could show some interaction with Irwin (see below) late in the forecast period.

Tropical storm Irwin / 10E

Warning 20 from NHC at 0900 GMT
Position 14.7N 123.8W
Location 1070 miles WSW of the southern tip of Baja California, Mexico
Movement 255° (WSW) at 5 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: 997 mbar
Threatened landmasses NONE
Next warning from NHC at 1500 GMT

Irwin will move westsouthwest, and will maintain current strength. Interaction with Hilary will cause the cyclone to stall, then head away north.

NORTHWESTERN PACIFIC OCEAN

TYPHOON Noru / 07W
Warning 27 from JTWC at 0900 GMT
Position 30.9N 150.5E
Location 443 miles NNW of Minami Tori Shima, Japan
Movement 285° (WNW) at 13 knots
Maximum sustained winds 75 knots gusting to 90 knots
Winds of 34 knots or higher occur within 70 to 135 miles of the centre
Winds of 64 knots or higher occur within 0 to 20 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 32 feet
Next warning from JTWC at 1500 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 06 from JTWC at 0900 GMT
Position 18.2N 127.3E
Location 422 miles ENE of Manila, Philippines
Movement 330° (NNW) 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 1500 GMT

Nesat will move north, later northwest whilst intensifying. 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 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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