4 July 2026 - bulletin 426

Issued at 0920 GMT
Latest warnings for 09W and 10W

NORTHWESTERN PACIFIC OCEAN
SUPERTYPHOON Bavi / 09W 
Warning 14 from JTWC at 0900 GMT
Position 12.5N 150.8E
Location 352 miles E of Andersen AFB, Guam
Movement 270° (W) at 7 knots
Maximum sustained winds 145 knots gusting to 175 knots
Winds of 34 knots or higher occur within 115 to 140 miles of the centre
Winds of 64 knots or higher occur within 40 to 45 miles of the centre
Threatened landmasses Northern Marianas Islands 
Maximum significant wave height 50 feet
Minimum central pressure 913 mbar 
Next warning from JTWC at 1500 GMT

Regional warnings

Tropical storm Maysak / 10W 
Warning 11 from JTWC at 0900 GMT
Position 20.6N 107.8E
Location 109 miles ESE of Hanoi, Vietnam
Movement 315° (NW) at 7 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 30 to 180 miles of the centre
Threatened landmasses Vietnam, China
Maximum significant wave height 16 feet
Minimum central pressure 991 mbar 
Next warning from JTWC at 1500 GMT

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