19 July 2018 - bulletin 493

Updated at 2200 GMT
Latest warnings for 12W
Disturbance update


NORTHWESTERN PACIFIC OCEAN
Tropical storm Ampil / 12W
Warning 09 from JTWC at 2100 GMT
Position 22.0N 131.3E
Location 331 miles SE of Kadena AB
Movement 350° (N) at 9 knots
Maximum sustained winds 45 knots gusting to 55 knots
Winds of 34 knots or higher occur within 95 to 155 miles of the centre
Threatened landmasses Okinawa, China
Maximum significant wave height 18 feet
Next warning from JTWC at 0300 GMT

Ampil will veer northwest. The system will strengthen to 60 knots before making final landfall in eastern China after two days.

TROPICAL DISTURBANCE UPDATE
EASTERN PACIFIC OCEAN 
Update from NHC at 1800 GMT
System 90E
Position 10.8N 126.1W
Location 1400 miles SW of the southern tip of Baja California
Likelihood of tropical cyclone formation within 48 hours is LOW (30%)
Likelihood of tropical cyclone formation within 5 days is MEDIUM (50%)

System No Invest Assigned
Position 9N 107WLikelihood of tropical cyclone formation within 48 hours is LOW (10%)
Likelihood of tropical cyclone formation within 5 days is MEDIUM (40%)