Tropical Storm Ewiniar (19W) Tracking East-Northeastward – September 26th, 201224.0N 138.7E
Early on September 22, a tropical disturbance formed west of Guam, out of the Intertropical Convergence Zone, and the JMA upgraded it to a tropical depression on the next day.
On September 24, the JTWC upgraded the system to a tropical depression, as it became better organized, with an exposed low level circulation center. On September 24th, the JTWC further upgraded the system to a minimal tropical storm.
Tropical Storm Ewiniar (19W), located approximately 40 nm north of Iwo-to, Japan, has tracked east-northeastward at 8 knots over the past six hours. Maximum significant wave height is 20 feet.