24 September 2024 - bulletin 599

Issued at 1500 GMT
Latest warning for 10E and 09L
First warning for 18W
Disturbance update

EASTERN PACIFIC OCEAN
Tropical storm John / 10E
Warning 09 from NHC at 1500 GMT
Position 17.7N 100.5W
Location 70 miles NW of Acapulco, Mexico
Movement 310° (NW) at 10 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 45 miles of the centre
Threatened landmasses Mexico
Minimum central pressure 1001 mbar
Next warning from NHC at 1800 GMT

Mexican warnings

NORTHERN ATLANTIC OCEAN
Tropical storm Helene / 09L
Warning 05 from NHC at 1500 GMT
Position 19.5N 84.3W
Location 170 miles SSE of the western tip of Cuba
Movement 310° (NW) at 10 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 140 miles of the centre
Threatened landmasses Mexico, Cuba, Florida
Minimum central pressure 1000 mbar
Next warning from NHC at 1800 GMT

Regional warnings

NORTHWESTERN PACIFIC OCEAN

Tropical depression 18W
Warning 01 from JTWC at 1500 GMT
Position 27.9N 135.1E
Location 502 miles SSW of Yokosuka, Japan
Movement 075° (ENE) at 7 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses NONE
Minimum central pressure 1001 mbar
Maximum significant wave height 10 feet
Next warning from NHC at 1800 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1200 GMT
System No Invest Assigned
Position 14N 27W
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (40%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

CENTRAL PACIFIC OCEAN
Update from CPHC at 1200 GMT
System No Invest Assigned
Position 13N 169W
Location 950 miles SW of Honolulu, Hawaii
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is LOW (10%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 1500 GMT
System 94W is now 18W

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