8 August 2026 - bulletin 534

Issued at 2100 GMT
Latest warnings for 12W and 14W
Disturbance update

NORTHWESTERN PACIFIC OCEAN
TYPHOON Dolphin / 12W

Warning 52 from JTWC at 2100 GMT
Position 27.2N 124.0E
Location 184 miles NE of Taipei, Taiwan
Movement 285° (WNW) at 7 knots
Maximum sustained winds 75 knots gusting to 90 knots
Winds of 34 knots or higher occur within 180 to 270 miles of the centre
Winds of 64 knots or higher occur within 15 to 30 miles of the centre
Threatened landmasses Taiwan, China
Minimum central pressure 955 mbar 
Maximum significant wave height 34 feet
Next warning from JTWC at 0300 GMT

Tropical storm Chan-hom / 14W
Warning 08 from JTWC at 2100 GMT
Position 32.7N 151.7E
Location 617 miles E of Yokosuka, Japan
Movement 250° (WSW) at 11 knots
Maximum sustained winds 40 knots gusting to 50 knots
Winds of 34 knots or higher occur within 60 to 80 miles of the centre
Threatened landmasses Japan
Minimum central pressure 988 mbar 
Maximum significant wave height 20 feet
Next warning from JTWC at 0300 GMT

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 1930 GMT 
System 13W 
Position 22.5N 140.9E 
Location 135 miles S
 of Iwo To
Minimum central pressure 998 mbar 
Likelihood of tropical cyclone formation within 24 hours is now HIGH

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 1800 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 10N 118W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is MEDIUM (40%)

System No Invest Assigned 
Position 10N 137W
Likelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 7 days is HIGH (70%)

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