
Satellite image TD 15W developing over the western North Pacific
A developing Tropical Depression (15W) located about 376 nm southwest of Iwo To, Japan was moving northward at 9 knots with max winds currently about 30 knots but likey close to tropical storm strength. Slow development is anticipated for the next 24-36 hours, after which conditions become more favorable with typhoon strength likely in about 48 hours.
A north to northeast motion is forecast for the next 48 hours then a turn towards the north and northwest is anticipated which could bring the center over Honshu Japan near Tokyo about 0000 UTC July 29th with winds to 80-85 knots.

JTWC forecast track for TD 15W