6 September 2025 - bulletin 587

Issued at 2150 GMT
Latest warning for 11E and 22W
Disturbance update
CENTRAL PACIFIC OCEAN
HURRICANE Kiko / 11E
Warning 27 from CPHC at 2100 GMT
Position 16.1N 141.4W
Location 935 miles ESE of Hilo, Hawaii
Movement 295° (WNW) at 10 knots
Maximum sustained winds 105 knots gusting to 130 knots
Winds of 34 knots or higher occur within 80 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Threatened landmasses Hawaii
Minimum central pressure 954 mbar 
Next warning from CPHC at 0300 GMT

Hawaiian warnings

NORTHWESTERN PACIFIC OCEAN
Tropical storm Tapah / 22W
Warning 03 from JTWC at 2100 GMT
Position 18.5N 114.8E 
Location 230 miles S of Hong Kong
Movement 275° (W) at 10 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 35 to 85 miles of the centre
Threatened landmasses China
Minimum central pressure 997 mbar 
Maximum significant wave height 18 feet
Next warning from JTWC at 0300 GMT

Hong Kong warnings

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1200 GMT
System 91L
Position 11.8N 39.3W
Minimum central pressure 1011 mbar 
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

EASTERN PACIFIC OCEAN

Update from NHC at 1200 GMT
System No Invest Assigned 
Position 15N 108W 
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

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