Tropical Depression 10W spawns southeast of Okinawa Tuesday afternoon; 98W Invest labeled medium area for development. (Joint Typhoon Warning Center)
7:10 p.m. Tuesday, July 22, Japan time: First warning has been issued on Tropical Depression 10W by Joint Typhoon Warning Center. It’s not forecast to become a typhoon at the moment, and is due to pass about 90 miles southwest of Kadena Air Base, Okinawa, at mid-evening Thursday as a tropical storm.
At 3 p.m., 10W was about 665 miles south-southeast of Kadena, moving north-northwest at 11 mph with 30-mph sustained winds and 40-mph gusts. U.S. bases on Okinawa remained in seasonal Tropical Cyclone Condition of Readiness 4 through Tuesday afternoon.
JTWC projects 10W to keep moving generally northwest over the next couple of days, peaking at 52-mph sustained winds and 63-mph gusts at center as it hurtles 92 miles southwest of Kadena at around 9 p.m. Thursday.
Kadena’s extended forecast calls for 23-mph sustained winds and 40-mph gusts as 10W makes its way northwest past the base Thursday, with scattered showers and isolated thunderstorms through Saturday.
Meanwhile, JTWC has labeled 98W Invest southeast of Guam as a medium area for development into a tropical cyclone within the next 24 hours. At 3 p.m., 98W was about 470 miles south-southeast of Guam.