30 September 2024 - bulletin 617

Issued at 1500 GMT
Latest warnings for 11L, 12L, 19W and 20W
Final warning for 10L
Disturbance update

NORTHERN ATLANTIC OCEAN
Post-tropical cyclone Isaac / 10L
Warning 19 from NHC at 1500 GMT
Position 44.8N 29.1W
Location 515 miles N of the Azores
Movement 065° (ENE) at 15 knots
Maximum sustained winds 50 knots gusting to 65 knots
Winds of 34 knots or higher occur within 185 miles of the centre
Threatened landmasses Azores
Minimum central pressure 983 mbar
FINAL WARNING

Regional warnings

Tropical depression Joyce / 11L
Warning 13 from NHC at 1500 GMT
Position 22.4N 49.3W
Location 940 miles ENE of northern Leeward Islands
Movement 360° (N) at 2 knots
Maximum sustained winds 30 knots gusting to 40 knots
Threatened landmasses NONE
Minimum central pressure 1006 mbar
Next warning from NHC at 2100 GMT

Tropical storm Kirk / 12L
Warning 04 from NHC at 1500 GMT
Position 13.5N 34.8W
Location 740 miles WSW of the Cabo Verde Islands
Movement 270° (W) at 10 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 115 miles of the centre
Threatened landmasses NONE
Minimum central pressure 1001 mbar
Next warning from NHC at 2100 GMT

NORTHWETERN PACIFIC OCEAN
Tropical storm Jebi / 19W
Warning 17 from JTWC at 1500 GMT
Position 29.2N 140.9E
Location 371 miles S of Yokosuka, Japan
Movement 010° (N) at 13 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 15 to 70 miles of the centre
Threatened landmasses Japan
Minimum central pressure 993 mbar
Maximum significant wave height 20 feet
Next warning from JTWC at 2100 GMT

TYPHOON Krathon / 20W
Philippines name Julian
Warning 14 from JTWC at 1500 GMT
Position 20.5N 121.2E
Location 539 miles SW of Kadena AB, Okinawa
Movement 285° (WNW) at 7 knots
Maximum sustained winds 125 knots gusting to 140 knots
Winds of 34 knots or higher occur within 140 to 170 miles of the centre
Winds of 64 knots or higher occur within 30 to 45 miles of the centre
Threatened landmasses Philippines, Taiwan
Minimum central pressure 932 mbar
Maximum significant wave height 53 feet
Next warning from JTWC at 2100 GMT

Philippines warnings

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 1200 GMT
System No Invest Assigned
Position 10N 24W
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (60%)

System No Invest Assigned
Position 16N 82W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is MEDIUM (40%)

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