4 September 2024 - bulletin 539

Issued at 0940 GMT
Latest warning for 12W
First warning for 13W
Disturbance update

NORTHWESTERN PACIFIC OCEAN
TYPHOON Yagi / 12W
Warning 12 from JTWC at 0900 GMT
Position 19.2N 117.4E
Location 258 miles SE of Hong Kong
Movement 290° (WNW) at 3 knots
Maximum sustained winds 80 knots gusting to 100 knots
Winds of 34 knots or higher occur within 80 to 95 miles of the centre
Winds of 64 knots or higher occur within 25 to 30 miles of the centre
Minimum central pressure 977 mbar
Threatened landmasses China
Maximum significant wave height 30 feet
Next warning from JTWC at 1500 GMT

Hong Kong warnings

Tropical depression 13W
Warning 02 from JTWC at 0900 GMT
Position 28.5N 147.0E
Location 268 miles ESE of Chi Chi Jima
Movement 355° (W) at 8 knots
Maximum sustained winds 30 knots gusting to 40 knots
Minimum central pressure 1003 mbar
Threatened landmasses NONE
Maximum significant wave height 15 feet
Next warning from JTWC at 1500 GMT

TROPICAL DISTURBANCE UPDATE
NORTHERN ATLANTIC OCEAN
Update from NHC at 0600 GMT
System No Invest Assigned
Position 16N 75W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (30%)

System No Invest Assigned
Position 15N 48W
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is LOW (10%)

System No Invest Assigned
Position 14N 26W
Likelihood of tropical cyclone formation within 48 hours is LOW (20%)
Likelihood of tropical cyclone formation within 7 days is LOW (30%)

NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0300 GMT
System 01C is no longer suspect for tropical cyclone formation
System 93W is now 13W

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