9 August 2026 - bulletin 537

Issued at 2100 GMT
Latest warnings for 13W and 14W
Disturbance update

NORTHWESTERN PACIFIC OCEAN
Tropical storm Peilou / 13W
Warning 12 from JTWC at 2100 GMT
Position 20.5N 145.8E
Location 411 miles N of Andersen AFB, Guam
Movement 095° (E) at 15 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 30 to 50 miles of the centre
Threatened landmasses NONE
Minimum central pressure 997 mbar 
Maximum significant wave height 13 feet
Next warning from JTWC at 0300 GMT

Tropical storm Chan-hom / 14W
Warning 12 from JTWC at 2100 GMT
Position 33.2N 150.2E
Location 535 miles E of Yokosuka, Japan
Movement 330° (NNW) at 10 knots
Maximum sustained winds 35 knots gusting to 45 knots
Winds of 34 knots or higher occur within 0 to 100 miles of the centre
Threatened landmasses Japan
Minimum central pressure 989 mbar 
Maximum significant wave height 14 feet
Next warning from JTWC at 0300 GMT

TROPICAL DISTURBANCE UPDATE
NORTHWESTERN PACIFIC OCEAN
Update from JTWC at 0600 GMT
System 98W 
Position 22.5N 156.4E 
Location 608 miles WNW of Wake Island

Minimum central pressure 1002 mbar 
Likelihood of tropical cyclone formation within 24 hours is HIGH

EASTERN PACIFIC OCEAN
Update from NHC at 1800 GMT
System No Invest Assigned 
Position 15N 115W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is LOW (10%)

System No Invest Assigned 
Position 13N 126W
Likelihood of tropical cyclone formation within 48 hours is LOW (30%)
Likelihood of tropical cyclone formation within 7 days is MEDIUM (60%)

CENTRAL PACIFIC OCEAN
Update from CPHC at 1800 GMT
System 93C
Position 10.1N 141.5W
Minimum central pressure 1008 mbar
Likelihood of tropical cyclone formation within 48 hours is MEDIUM (40%)
Likelihood of tropical cyclone formation within 7 days is HIGH (90%)

NORTHERN ATLANTIC OCEAN
Update from NHC at 1800 GMT 
System No Invest Assigned 
Position 10N 35W 
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 12N 15W
Likelihood of tropical cyclone formation within 48 hours is NIL
Likelihood of tropical cyclone formation within 7 days is MEDIUM (50%)