25 September 2024 - bulletin 602

Issued at 1525 GMT
Latest warning for 09L and 18W
Resumed warnings for 10E
Disturbance update

NORTHERN ATLANTIC OCEAN
HURRICANE Helene / 09L
Warning 09 from NHC at 1500 GMT
Position 21.6N 86.3W
Location 500 miles SSW of Tampa, Florida
Movement 330° (NNW) at 9 knots
Maximum sustained winds 70 knots gusting to 85 knots
Winds of 34 knots or higher occur within 275 miles of the centre
Winds of 64 knots or higher occur within 25 miles of the centre
Threatened landmasses Mexico, Cuba, Florida, Georgia, Carolinas
Minimum central pressure 979 mbar
Next warning from NHC at 1800 GMT

Regional warnings

EASTERN PACIFIC OCEAN

Tropical storm John / 10E
Warning 11 from NHC at 1500 GMT
Position 16.2N 101.4W
Location 110 miles WSW of Acapulco
Movement 080° (E) at 2 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 80 miles of the centre
Threatened landmasses Mexico
Minimum central pressure 1000 mbar
Next warning from NHC at 1800 GMT

NORTHWESTERN PACIFIC OCEAN
Tropical depression Cimaron / 18W
Warning 05 from JTWC at 1500 GMT
Position 27.8N 133.3E
Location 556 miles SW of Yokosuka, Japan
Movement 235° (SW) at 7 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses Japan
Minimum central pressure 1002 mbar
Maximum significant wave height 11 feet
Next warning from JTWC at 2100 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1200 GMT
System 98L
Position 14.7N 33.0W
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (50%)
Likelihood of tropical cyclone formation within 7 days is HIGH (80%)

System 99L
Position 37.1N 57.4W
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

EASTERN PACIFIC OCEAN
Update from NHC at 1500 GMT
System 10E / 95E has regenerated into a tropical cyclone

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 1530 GMT
System 95W
Position 16.1N 148.3E
Location 157 miles ENE of Saipan
Likelihood of tropical cyclone formation within 24 hours is now HIGH

System 96W
Position 33.7N 142.9E
Location 186 miles ESE of Yokosuka, Japan
Likelihood of tropical cyclone formation within 24 hours is LOW

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