8 August 2026 - bulletin 533

Issued at 1540 GMT
Latest warnings for 12W and 14W
Disturbance update

NORTHWESTERN PACIFIC OCEAN
TYPHOON Dolphin / 12W

Warning 51 from JTWC at 1500 GMT
Position 27.0N 124.8E
Location 164 miles W of Kadena AB, Okinawa
Movement 285° (WNW) at 4 knots
Maximum sustained winds 75 knots gusting to 90 knots
Winds of 34 knots or higher occur within 210 to 250 miles of the centre
Winds of 64 knots or higher occur within 15 to 30 miles of the centre
Threatened landmasses Ryuku Islands, Taiwan, China
Minimum central pressure 950 mbar 
Maximum significant wave height 34 feet
Next warning from JTWC at 2100 GMT

Tropical storm Chan-hom / 14W
Warning 07 from JTWC at 1500 GMT
Position 33.1N 153.2E
Location 723 miles ESE of Misawa, Japan
Movement 275° (W) at 14 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 0 to 100 miles of the centre
Threatened landmasses Japan
Minimum central pressure 991 mbar 
Maximum significant wave height 18 feet
Next warning from JTWC at 2100 GMT

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 1500 GMT 
System 97W is no longer suspect for tropical cyclone formation

System 13W 
Position 22.7N 139.5E 
Location 167 miles S
W of Iwo To
Minimum central pressure 1001 mbar 
Likelihood of tropical cyclone formation within 24 hours is now MEDIUM

System 98W 
Position 20.5N 152.5E 
Location 513 miles NNE of Tinian

Minimum central pressure 1004 mbar 
Likelihood of tropical cyclone formation within 24 hours is now MEDIUM

EASTERN PACIFIC OCEAN
Update from NHC at 0600 GMT
System No Invest Assigned 
Position 15N 112W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (20%)

System No Invest Assigned 
Position 11N 114W
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 10N 135W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is MEDIUM (60%)

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