25 September 2024 - bulletin 601

Issued at 1015 GMT
Latest warning for 09L and 18W
Disturbance update

NORTHERN ATLANTIC OCEAN
Tropical storm Helene / 09L
Warning 08 from NHC at 0900 GMT
Position 20.7N 86.2W
Location 120 miles SW of the western tip of Cuba
Movement 325° (NW) at 8 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 175 miles of the centre
Threatened landmasses Mexico, Cuba, Florida, Georgia, Carolinas
Minimum central pressure 985 mbar
Next warning from NHC at 1200 GMT

Regional warnings

NORTHWESTERN PACIFIC OCEAN

Tropical storm Cimaron / 18W
Warning 04 from JTWC at 0900 GMT
Position 28.2N 133.9E
Location 518 miles SW of Yokosuka, Japan
Movement 260° (W) at 7 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 90 miles to the northwest of the centre
Threatened landmasses Japan
Minimum central pressure 1001 mbar
Maximum significant wave height 12 feet
Next warning from JTWC at 1500 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT
System 98L
Position 14.5N 31.4W
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 37.3N 58.5W
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 0600 GMT
System 10E / 95E
Position 15.8N 102.6W
Likelihood of tropical cyclone formation within 48 hours is HIGH (70%)
Likelihood of tropical cyclone formation within 7 days is HIGH (70%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 95W
Position 15.5N 149.3E
Location 209 miles E of Saipan
Likelihood of tropical cyclone formation within 24 hours is MEDIUM

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