5 September 2025 - bulletin 582

Issued at 1000 GMT
Latest warnings for 11E and 21W
Final warning for 12E
Disturbance update
EASTERN PACIFIC OCEAN
HURRICANE Kiko / 11E
Warning 21 from NHC at 0900 GMT
Position 13.9N 136.2W
Location 1310 miles ESE of Hilo, Hawaii
Movement 270° (W) at 8 knots
Maximum sustained winds 110 knots gusting to 135 knots
Winds of 34 knots or higher occur within 70 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Threatened landmasses Hawaii
Minimum central pressure 955 mbar 
Next warning from NHC at 0300 GMT

Hawaiian warnings
Post-tropical cyclone Lorena / 12E
Warning 14 from NHC at 0900 GMT
Position 24.5N 115.0W
Location 170 miles W of Cabo San Lazaro, Mexico
Movement Stationary
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Mexico
Minimum central pressure 1002 mbar 
FINAL WARNING

Mexican warnings

NORTHWESTERN PACIFIC OCEAN

Tropical storm Peipah / 21W
Warning 08 from JTWC at 0900 GMT
Position 34.9N 139.3E 
Location 31 miles SW of Yokosuka, Japan
Movement 070° (ENE) at 30 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 20 to 120 miles of the centre
Threatened landmasses Japan
Minimum central pressure 992 mbar 
Maximum significant wave height 20 feet
Next warning from JTWC at 1500 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT
System 91L
Position 11.9N 34.9W
Minimum central pressure 1011 mbar 
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (60%)
Likelihood of tropical cyclone formation within 7 days is HIGH (90%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT 
System 97W 
Position 18.0N 118.9E
Location 373 miles SE of Hong Kong 
Likelihood of tropical cyclone formation within 24 hours is LOW

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