18 April 2026 - bulletin 271

Issued at 2015 GMT
Latest warnings for 04W 

NORTHWESTERN PACIFIC OCEAN
Tropical storm Sinlaku / 04W
Warning 40 from JTWC at 2100 GMT
Position 25.3N 148.5E
Location 392 miles E of Iwo To
Movement 045° (NE) at 14 knots
Maximum sustained winds 55 knots gusting to 70 knots
Winds of 34 knots or higher occur within 170 to 215 miles of the centre
Threatened landmasses NONE
Maximum significant wave height 30 feet
Minimum central pressure 983 mbar 
Next warning from JTWC at 0300 GMT

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